Date   
Re: [Amel Yacht Owners] Re: SM Batteries

greatketch@...
 

No... FireFly batteries can not be "desulfated" in the normal sense of the word. 

If they are operated at a partial state of charge for multiple cycles, they apparently can show some temporary capacity decrease.  The manufacturer's recommended procedure for recovering that capacity is to discharge them all they way down to dead empty (10.5 volts) and then do a normal charge back to full.

I do not know what chemistry is happening inside with that procedure.

Bill Kinney
SM160, Harmonie
Cape Eleuthera, Bahamas
Heading north tomorrow...  probably!

Re: [Amel Yacht Owners] Prop Shaft Brake Pads

Alan Leslie
 

Thanks Bill,
However, if the pads are worn and the piston is at the end of it's travel i.e hard up at the end of the cylinder, adjusting the spring tension or replacing the spring won't have any effect. That was my problem and hence my fix, since I can't do anything about pads where I am right now.
Cheers
Alan
Elyse SM437 

Re: [Amel Yacht Owners] Prop Shaft Brake Pads

 

Thomas,

The shaft brake stops the shaft disk when transmission pressure is zero, and opens as soon as the engine starts and transmission pressure increases.

The hydraulic ram adjustment exists to have the proper pad  clearance when the unit is pressurized. Adjusting the hydraulic ram IN will open that clearance and can reduce the mechanical squeezing pressure of the pads against the disk. The pads are mechanically squeezed to the disk with a spring. My guess is that you need the spring.

Sometimes an AutoProp, in need of service and not feathering correctly, will cause pad slippage....and slippage will wear out the pads. 

Best,

CW Bill Rouse
Admiral, Texas Navy
Commander Emeritus
Amel School www.amelschool.com
720 Winnie St
Galveston Island, TX 77550
+1(832) 380-4970

On Sun, May 20, 2018, 13:38 thomas.kleman <no_reply@...> wrote:
 

I own SM2K #422 (L'ORIENT). On the way from Grenada to Bonaire, I heard.....then noticed.... that my prop shaft brake was no longer holding the prop shaft. I was going faster than normal......8+ knots straight down wind with the Genoa and Balooner set.  I'm hoping this hasn't been going on a long time, but I think I would have noticed. Anyway, I cranked down the adjustment screw all the way in (it had been all the way out prior to this adjustment). I can still turn the prop by hand when the engine is off. I tested the brake cylinder and pin by turning on and off the engine and noting the position of the pin and clamps.......the pin comes out of the cylinder when the engine is off, and retracts when the engine is on. It doesn't seem to be leaking. I'm assuming I need brake pads.........I obviously can't tell how thick they should be because I don't have a new set to compare it to. Any thoughts ? I'm assuming this is an Amel source d item.


Tom and Kirstin

SV L'ORIENT

Bonaire

Re: [Amel Yacht Owners] Re: SM Batteries

James Alton
 

Bill,

   I am glad to hear that the Firefly batteries are exceeding your expectations.  Perhaps in the future the cost differential for the Fireflies versus conventional batteries will decrease.  Fingers crossed that you get a long life out of your batteries.

   One thing that I tend to consider when comparing the total cost of batteries is the value of having more reliable batteries.  I find it disruptive to have to change batteries in the middle of a trip so if paying more for a battery can extend the time between these disruptions, to me there is some payback though I don’t know how one could put an exact monetary value on that aspect.   Also, batteries are heavy things and even though I tend to do the work myself to change them so I am not paying someone directly, it can feel a bit like work to me to locate replacements (which it seems you can seldom find the exact same battery so sometimes wiring modifications are required) , remove and replace batteries.  Finally I feel that when I consider the cost of the boat and all of the other expenses that go into being able to cruise my boat, there is a pretty significant cost per day that needs to be factored into the downtime that the boat is not available for use.   Sometimes paying more upfront  can actually cost less in the long run.

James
SV Sueño
Maramu #220

On May 21, 2018, at 1:41 AM, 'sailormon' kimberlite@... [amelyachtowners] <amelyachtowners@...> wrote:


Bill,

Batteries are less expensive than a genset.

Thank You for the explanation.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] 
Sent: Sunday, May 20, 2018 11:18 PM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Re: SM Batteries

 

  

Eric,

 

Yes, that is the cost. Expensive.

 

They are very expensive, and as I wrote, NOT for everybody.  They only make sense if:

  • you can reduce the number of batteries you need based on the tolerance for a much deeper routine discharge without damage, o r if;
  • the higher charge rate is important, or if;
  • tolerance for consistent operation at partial state of charge is economically important to your application.

If you look at battery technology, the cost per kilowatt-hour stored over the life span of the battery is pretty much a constant. That is not an accident, but I am sure the way the bean-counters price things. The very long forecast life of these batteries makes them very expensive in upfront cost. That the factory is running at capacity, and can barely keep up with demand, puts constant upward pressure on the price.

 

If your objective function is simply the time weighted cost of batteries, I doubt you can do better than the simplest flooded lead acid batteries. 

 < /o>

In my specific case, a potentially postponed genset replacement justified the higher battery cost. Even if the overall lifespan does not ultimately live up to the manufacturer's expectations, I expect to come out ahead.  That cost/benefit analysis is likely to be different for everyone.



So far, the reduced charging time has not only met, but well exceeded my expectations.  The lifespan of the batteries without regular recharging to "full" is something that can only wait for the passage of years to know if it will be what was promised.

 

Bill Kinney

SM160, Harmonie

Cape Eleuthera, Bahamas

 



---In amelyachtowners@..., <kimberlite@...> wrote :

Hi Bill,

Congratulations on your long life aboard an Amel. !!

May I ask what you paid for the batteries. I went to the link you posted and it seems that they are over $400- US each.

Is t hat correct?

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowner s@...] 
Sent: Sunday, May 20, 2018 1:32 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: SM Batteries

 

 

Kent,

 

Just to throw a bit of extra information on the pile, here is my update for our batteries.

 

https://fetchinketch.net/boat-projects/battery-upgrade/

< /div>

 

They aren't for everybody, but they seem to be doing what we asked of them above and beyond the standard choices.

 

Bill Kinney

SM160, Harmonie

Cape Eleuthera, Bahamas



Re: [Amel Yacht Owners] Re: SM Batteries

Alan Leslie
 

Hi BILL
I had a discussion with a local supplier in New Zealand...and it turned out that they were even more expensive than LiFePO4 batteries...which I quite like the idea of.
The advantage of the Firefly is of course that you don't need to change your charging regimen.
Both our 220V chargers can handle LifePO4, but the alternator is a different story, although I have found a supplier that has that option on his smart alt reg.
Will be interested to follow your experience..
Keep us posted!
Cheers
Alan
Elyse SM437
 

Re: Prop Shaft Brake Pads

Alan Leslie
 

Good idea !!
Our problem was that the pads weren't hardly in contact with the disk !
So our only solution was to modify the system so that it could be adjusted.
We were at sea at the time...it was interesting !
Cheers'
Alan
Elyse SM437...somewhere near Suva, Fiji

Re: Prop Shaft Brake Pads

rossirossix4
 

First try disk brake cleaner.  (Just to insert this into this topic for others that may be looking for solutions to this problem)--

A couple of things to do first. We had a problem with the prop shaft slipping....underway I solved it by levering the outer arm (to the left of the piston) forward against the supporting frame using a pliers)--this is momentary pressure to "help" the hydraulic device clamp down and stop the rotation and potential wearing of the pads .  

At port I cleaned the disk with an aerosol disk brake cleaner available at most auto parts stores.  It immediately stopped the problem and the problem has now remained solved for several years.  

Our advice is to first clean the disk with disk brake cleaner before doing any adjusting.  Disk brake cleaner works by removing any oil, grease, dust or grime that can cause slipping...usually these products are mostly ETHER--.so be careful to avoid breathing the vapors  You don't need to spray much, we controlled overspray with a paper towel and used the paper towel to wipe the surfaces of the disk.  

As an aside we always visually check the engine after shutting it down underway so you can make sure that the shaft is not continuing to rotate.

Bob and Suzanne, SM 429 KAIMI

Re: [Amel Yacht Owners] Re: SM Batteries

eric freedman
 

Bill,

Batteries are less expensive than a genset.

Thank You for the explanation.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 11:18 PM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Re: SM Batteries

 

 

Eric,

 

Yes, that is the cost. Expensive.

 

They are very expensive, and as I wrote, NOT for everybody.  They only make sense if:

  • you can reduce the number of batteries you need based on the tolerance for a much deeper routine discharge without damage, or if;
  • the higher charge rate is important, or if;
  • tolerance for consistent operation at partial state of charge is economically important to your application.

If you look at battery technology, the cost per kilowatt-hour stored over the life span of the battery is pretty much a constant. That is not an accident, but I am sure the way the bean-counters price things. The very long forecast life of these batteries makes them very expensive in upfront cost. That the factory is running at capacity, and can barely keep up with demand, puts constant upward pressure on the price.

 

If your objective function is simply the time weighted cost of batteries, I doubt you can do better than the simplest flooded lead acid batteries. 

 

In my specific case, a potentially postponed genset replacement justified the higher battery cost. Even if the overall lifespan does not ultimately live up to the manufacturer's expectations, I expect to come out ahead.  That cost/benefit analysis is likely to be different for everyone.



So far, the reduced charging time has not only met, but well exceeded my expectations.  The lifespan of the batteries without regular recharging to "full" is something that can only wait for the passage of years to know if it will be what was promised.

 

Bill Kinney

SM160, Harmonie

Cape Eleuthera, Bahamas

 



---In amelyachtowners@..., <kimberlite@...> wrote :

Hi Bill,

Congratulations on your long life aboard an Amel. !!

May I ask what you paid for the batteries. I went to the link you posted and it seems that they are over $400- US each.

Is that correct?

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 1:32 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: SM Batteries

 

 

Kent,

 

Just to throw a bit of extra information on the pile, here is my update for our batteries.

 

 

They aren't for everybody, but they seem to be doing what we asked of them above and beyond the standard choices.

 

Bill Kinney

SM160, Harmonie

Cape Eleuthera, Bahamas

Re: [Amel Yacht Owners] Re: SM Batteries

karkauai
 

Very interesting Bill.  It will be interesting to see how long they last.  Can the Firefly’s be desulfated if they seem to be showing signs that all isn’t well?

Kent Robertson
S/V Kristy
SM243

Kent,

Just to throw a bit of extra information on the pile, here is my update for our batteries.


They aren't for everybody, but they seem to be doing what we asked of them above and beyond the standard choices.

Bill Kinney
SM160, Harmonie
Cape Eleuthera, Bahamas

Re: [Amel Yacht Owners] Re: SM Batteries

greatketch@...
 

Eric,

Yes, that is the cost. Expensive.

They are very expensive, and as I wrote, NOT for everybody.  They only make sense if:
  • you can reduce the number of batteries you need based on the tolerance for a much deeper routine discharge without damage, or if;
  • the higher charge rate is important, or if;
  • tolerance for consistent operation at partial state of charge is economically important to your application.
If you look at battery technology, the cost per kilowatt-hour stored over the life span of the battery is pretty much a constant. That is not an accident, but I am sure the way the bean-counters price things. The very long forecast life of these batteries makes them very expensive in upfront cost. That the factory is running at capacity, and can barely keep up with demand, puts constant upward pressure on the price.

If your objective function is simply the time weighted cost of batteries, I doubt you can do better than the simplest flooded lead acid batteries. 

In my specific case, a potentially postponed genset replacement justified the higher battery cost. Even if the overall lifespan does not ultimately live up to the manufacturer's expectations, I expect to come out ahead.  That cost/benefit analysis is likely to be different for everyone.

So far, the reduced charging time has not only met, but well exceeded my expectations.  The lifespan of the batteries without regular recharging to "full" is something that can only wait for the passage of years to know if it will be what was promised.

Bill Kinney
SM160, Harmonie
Cape Eleuthera, Bahamas



---In amelyachtowners@..., <kimberlite@...> wrote :

Hi Bill,

Congratulations on your long life aboard an Amel. !!

May I ask what you paid for the batteries. I went to the link you posted and it seems that they are over $400- US each.

Is that correct?

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 1:32 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: SM Batteries

 

 

Kent,

 

Just to throw a bit of extra information on the pile, here is my update for our batteries.

 

 

They aren't for everybody, but they seem to be doing what we asked of them above and beyond the standard choices.

 

Bill Kinney

SM160, Harmonie

Cape Eleuthera, Bahamas

Re: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

eric freedman
 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 7:11 PM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

 

 

I figured it out  please see photos of the spring and the brake pads.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 7:06 PM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

 

 

Hi,

I have photos of the brake pads from Kimberlite. How do I include photos in this text?

I know I can’t add them as an attachment.

Fair Winds

Eric

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 6:41 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

 

 

Yes..."contacts the piston pin"

Its a standard hex head bolt

 

Maud does have pads, it was only that none of the ones she has look like ours...apparently there are three different types

 

Cheers

Alan

Elyse SM437



---In amelyachtowners@..., <no_reply@...> wrote :

Whoa. Interesting solution. Just to be clear (before I start drilling holes) when you said "where it contracts the piston pin"......you meant "contacts the piston pin", right ? What kind of head do you have on the M8 bolt ? Does it matter ?

 

I'm going to verify that Maud doesn't have the pads.......kind of surprising given that everyone will need to change the pads at some point.......but if they aren't easily obtained, I will follow your lead.

 

Thanks for the idea........this is exactly why I love this site.

 

Tom Kleman

SV L'ORIENT SM2K 422

Bonaire

Re: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

eric freedman
 

I figured it out  please see photos of the spring and the brake pads.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 7:06 PM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

 

 

Hi,

I have photos of the brake pads from Kimberlite. How do I include photos in this text?

I know I can’t add them as an attachment.

Fair Winds

Eric

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 6:41 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

 

 

Yes..."contacts the piston pin"

Its a standard hex head bolt

 

Maud does have pads, it was only that none of the ones she has look like ours...apparently there are three different types

 

Cheers

Alan

Elyse SM437



---In amelyachtowners@..., <no_reply@...> wrote :

Whoa. Interesting solution. Just to be clear (before I start drilling holes) when you said "where it contracts the piston pin"......you meant "contacts the piston pin", right ? What kind of head do you have on the M8 bolt ? Does it matter ?

 

I'm going to verify that Maud doesn't have the pads.......kind of surprising given that everyone will need to change the pads at some point.......but if they aren't easily obtained, I will follow your lead.

 

Thanks for the idea........this is exactly why I love this site.

 

Tom Kleman

SV L'ORIENT SM2K 422

Bonaire

Re: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

eric freedman
 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 6:41 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

 

 

Yes..."contacts the piston pin"

Its a standard hex head bolt

 

Maud does have pads, it was only that none of the ones she has look like ours...apparently there are three different types

 

Cheers

Alan

Elyse SM437



---In amelyachtowners@..., <no_reply@...> wrote :

Whoa. Interesting solution. Just to be clear (before I start drilling holes) when you said "where it contracts the piston pin"......you meant "contacts the piston pin", right ? What kind of head do you have on the M8 bolt ? Does it matter ?

 

I'm going to verify that Maud doesn't have the pads.......kind of surprising given that everyone will need to change the pads at some point.......but if they aren't easily obtained, I will follow your lead.

 

Thanks for the idea........this is exactly why I love this site.

 

Tom Kleman

SV L'ORIENT SM2K 422

Bonaire

Re: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

eric freedman
 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 6:41 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

 

 

Yes..."contacts the piston pin"

Its a standard hex head bolt

 

Maud does have pads, it was only that none of the ones she has look like ours...apparently there are three different types

 

Cheers

Alan

Elyse SM437



---In amelyachtowners@..., <no_reply@...> wrote :

Whoa. Interesting solution. Just to be clear (before I start drilling holes) when you said "where it contracts the piston pin"......you meant "contacts the piston pin", right ? What kind of head do you have on the M8 bolt ? Does it matter ?

 

I'm going to verify that Maud doesn't have the pads.......kind of surprising given that everyone will need to change the pads at some point.......but if they aren't easily obtained, I will follow your lead.

 

Thanks for the idea........this is exactly why I love this site.

 

Tom Kleman

SV L'ORIENT SM2K 422

Bonaire

Re: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

eric freedman
 

Hi,

I have photos of the brake pads from Kimberlite. How do I include photos in this text?

I know I can’t add them as an attachment.

Fair Winds

Eric

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 6:41 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Prop Shaft Brake Pads

 

 

Yes..."contacts the piston pin"

Its a standard hex head bolt

 

Maud does have pads, it was only that none of the ones she has look like ours...apparently there are three different types

 

Cheers

Alan

Elyse SM437



---In amelyachtowners@..., <no_reply@...> wrote :

Whoa. Interesting solution. Just to be clear (before I start drilling holes) when you said "where it contracts the piston pin"......you meant "contacts the piston pin", right ? What kind of head do you have on the M8 bolt ? Does it matter ?

 

I'm going to verify that Maud doesn't have the pads.......kind of surprising given that everyone will need to change the pads at some point.......but if they aren't easily obtained, I will follow your lead.

 

Thanks for the idea........this is exactly why I love this site.

 

Tom Kleman

SV L'ORIENT SM2K 422

Bonaire

Re: Prop Shaft Brake Pads

Alan Leslie
 

Yes..."contacts the piston pin"
Its a standard hex head bolt

Maud does have pads, it was only that none of the ones she has look like ours...apparently there are three different types

Cheers
Alan
Elyse SM437


---In amelyachtowners@..., <no_reply@...> wrote :

Whoa. Interesting solution. Just to be clear (before I start drilling holes) when you said "where it contracts the piston pin"......you meant "contacts the piston pin", right ? What kind of head do you have on the M8 bolt ? Does it matter ?

I'm going to verify that Maud doesn't have the pads.......kind of surprising given that everyone will need to change the pads at some point.......but if they aren't easily obtained, I will follow your lead.

Thanks for the idea........this is exactly why I love this site.

Tom Kleman
SV L'ORIENT SM2K 422
Bonaire

Re: [Amel Yacht Owners] Prop Shaft Brake Pads

eric freedman
 

Hi,

I had the same problem. At the time Amel did not have the brake pads. I had them  relined by a brake clutch relining shop.

I still had a problem. I received a new spring from Amel and it fixed the problem.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...] On Behalf Of thomas.kleman
Sent: Sunday, May 20, 2018 2:38 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Prop Shaft Brake Pads

 

 

I own SM2K #422 (L'ORIENT). On the way from Grenada to Bonaire, I heard.....then noticed.... that my prop shaft brake was no longer holding the prop shaft. I was going faster than normal......8+ knots straight down wind with the Genoa and Balooner set.  I'm hoping this hasn't been going on a long time, but I think I would have noticed. Anyway, I cranked down the adjustment screw all the way in (it had been all the way out prior to this adjustment). I can still turn the prop by hand when the engine is off. I tested the brake cylinder and pin by turning on and off the engine and noting the position of the pin and clamps.......the pin comes out of the cylinder when the engine is off, and retracts when the engine is on. It doesn't seem to be leaking. I'm assuming I need brake pads.........I obviously can't tell how thick they should be because I don't have a new set to compare it to. Any thoughts ? I'm assuming this is an Amel sourced item.

 

Tom and Kirstin

SV L'ORIENT

Bonaire

Re: [Amel Yacht Owners] Re: SM Batteries

eric freedman
 

Hi Bill,

Congratulations on your long life aboard an Amel. !!

May I ask what you paid for the batteries. I went to the link you posted and it seems that they are over $400- US each.

Is that correct?

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, May 20, 2018 1:32 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: SM Batteries

 

 

Kent,

 

Just to throw a bit of extra information on the pile, here is my update for our batteries.

 

 

They aren't for everybody, but they seem to be doing what we asked of them above and beyond the standard choices.

 

Bill Kinney

SM160, Harmonie

Cape Eleuthera, Bahamas

Re: Prop Shaft Brake Pads

thomas.kleman <no_reply@...>
 

Whoa. Interesting solution. Just to be clear (before I start drilling holes) when you said "where it contracts the piston pin"......you meant "contacts the piston pin", right ? What kind of head do you have on the M8 bolt ? Does it matter ?

I'm going to verify that Maud doesn't have the pads.......kind of surprising given that everyone will need to change the pads at some point.......but if they aren't easily obtained, I will follow your lead.

Thanks for the idea........this is exactly why I love this site.

Tom Kleman
SV L'ORIENT SM2K 422
Bonaire

Re: Prop Shaft Brake Pads

Alan Leslie
 

We have had the same problem.
The issue with adjusting the bolt on the end of the cylinder is that it only puts pressure on the spring. If the piston has bottomed out at the end of the cylinder, no amount of adjusting the bolt will do any good.
You are right, your pads have worn to the point where there is no adjustment left.
Amel have pads, but neither of thew two Maud showed me were like our pads, which seem to have quite a bit of material still on them. 
So, what to do?

I took off the cylinder and caliper assembly, disassembled the floating caliper and drilled a 7mm hole through it where it contracts the piston pin, threaded the hole M8 and put in a bolt with a lock nut, so now I can adjust the distance between the caliper and the piston pin.Put it all back together and adjust the bolt so that the shaft can't spin, test with engine on that it is able to turn....

That's fixed it.

Cheers
Alan
Elyse SM437 Levuka, Fiji