Date
1 - 4 of 4
[Amel Yacht Owners] Maramou, freshwater under fwd head
|
Roger Banks <roger.banks@...>
Hi Mike
I've had the same problem with my Mango no. 28 (the direct precursor of the SM). We had rot in the compression post under the main mast which our surveyor did not find. The problem did not become clear at first (i) because the forward well also houses the water speed transponder which leaks a few cups of water each time the transponder is put in or pulled out, and (ii) the plumbing to the basin in the forward head was leaking when under pressure and needed pretty much all the clips tightening (you may want to check this). However, water kept pooling in that same place. After some months of ownership and following the repairs, a guest spotted, when it was raining, a small line of water coming down from the mast, through the small hatch where (on the Mango at least) the mast lighting switch box can be opened to reveal cables coming down the mast, on down the compression post and into the forward well. I'm told by the shipwright who made the repairs that water down the mast is a fairly common problem and difficult to arrest, and he had applied a good amount of glass around the base of the compression post to waterproof it for that reason. I've tried as follows. I found an inspection of the mast revealed few obvious holes; any found may be sealed with a small amount of marine Sikaflex. This made virtually no difference and I was left puzzling how else water would enter the mast. I've recently put a fillet of Sikaflex around the base of the mast where it sits on the step, because it looks like some of the water running down the outside of the mast may find its way through the coachroof via the step. This has reduced the flow but I'm still looking. For the time being, I'm reluctant to block the mast completely with a filler for obvious reasons of future access. I have a similar issue with the mizzen, where we also had to repair extensive rot in the compression box system which conveys the forces through to the bulkhead. I notice water is still seeping through and drips down at the aft end of the engine room, directly beneath the mast. I cannot see yet how this is happening but I'm on the case. Good luck and do keep in touch about it. Regards, Roger, Mango 28, Zorba On 07/10/2005, at 9:03 AM, Mike Gough wrote: G,day all, [Non-text portions of this message have been removed]
|
|
|
|
Mike Gough <mahili_au@...>
G,day Roger,
Thankyou for info, design under main mast sounds the same and I think water ingress from base of mast is most likely as was the case for your Mango. I have noticed water draining into the head by way of a special water trap as you described but this goes into the shower bay. The walls are lined with the usual Amel vinyl lining and I am wondering if somehow water could be moving down between the vinyl and wall proper? I think I may have to consider lifting the mast one day to resolve. Incidentally, I managed to mis spell the model name. Should be Maramu! Thanks again, Mike Gough Roger Banks <roger.banks@mac.com> wrote: Hi Mike I've had the same problem with my Mango no. 28 (the direct precursor of the SM). We had rot in the compression post under the main mast which our surveyor did not find. The problem did not become clear at first (i) because the forward well also houses the water speed transponder which leaks a few cups of water each time the transponder is put in or pulled out, and (ii) the plumbing to the basin in the forward head was leaking when under pressure and needed pretty much all the clips tightening (you may want to check this). However, water kept pooling in that same place. After some months of ownership and following the repairs, a guest spotted, when it was raining, a small line of water coming down from the mast, through the small hatch where (on the Mango at least) the mast lighting switch box can be opened to reveal cables coming down the mast, on down the compression post and into the forward well. I'm told by the shipwright who made the repairs that water down the mast is a fairly common problem and difficult to arrest, and he had applied a good amount of glass around the base of the compression post to waterproof it for that reason. I've tried as follows. I found an inspection of the mast revealed few obvious holes; any found may be sealed with a small amount of marine Sikaflex. This made virtually no difference and I was left puzzling how else water would enter the mast. I've recently put a fillet of Sikaflex around the base of the mast where it sits on the step, because it looks like some of the water running down the outside of the mast may find its way through the coachroof via the step. This has reduced the flow but I'm still looking. For the time being, I'm reluctant to block the mast completely with a filler for obvious reasons of future access. I have a similar issue with the mizzen, where we also had to repair extensive rot in the compression box system which conveys the forces through to the bulkhead. I notice water is still seeping through and drips down at the aft end of the engine room, directly beneath the mast. I cannot see yet how this is happening but I'm on the case. Good luck and do keep in touch about it. Regards, Roger, Mango 28, Zorba On 07/10/2005, at 9:03 AM, Mike Gough wrote: G,day all, [Non-text portions of this message have been removed] SPONSORED LINKS Sailing Sailing yacht Amel Boating sailing --------------------------------- YAHOO! GROUPS LINKS Visit your group "amelyachtowners" on the web. To unsubscribe from this group, send an email to: amelyachtowners-unsubscribe@yahoogroups.com Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- --------------------------------- Yahoo! Music Unlimited - Access over 1 million songs. Try it free. [Non-text portions of this message have been removed]
|
|
|
|
Roger Banks <roger.banks@...>
Hi Mike
toggle quoted messageShow quoted text
You're reminding me now of some more detail. Our shipwright had to take out the shower tray and renew the inner layer of the double skin bulkhead from the shower tray downwards. At that stage we were attributing the compression post rot to shower activity dampness working its way down the side of the shower tray. Maybe it was a combination of factors. I recommend you do some testing of the post and bulkhead with a screwdriver blade without delay. We did not have to take down the mast, however. A couple of acro-props were used to bridge the load of the mast down to the hull while the compression post and bulkhead were cut away. Whilst it all sounds rather frightening, it proved to be a fairly straightforward job for a competent shipwright and not too expensive, circa $2000 Australian. Regards, Roger, Mango 28, Zorba
On 09/10/2005, at 11:37 AM, Mike Gough wrote:
G,day Roger,
|
|
|
|
Mike Gough <mahili_au@...>
G'day Roger,
Thankyou again for advice, looks like our problems were identical and both caused by fresh water. Approx 12 months ago I made the unpleasant discovery but instead of removing the shower tray I cut away the bulkhead forward of the compression post from the saloon side, removing all damaged material from there. The post was approx 30% affected so it was not as advanced as your Mango. After much new timber and epoxy resin I think I have repaired to original strength. Water is still sometimes found after heavy rain so I am keen to solve that problem. I will let you know when I do. Regards, Mike Gough Roger Banks <roger.banks@mac.com> wrote: Hi Mike You're reminding me now of some more detail. Our shipwright had to take out the shower tray and renew the inner layer of the double skin bulkhead from the shower tray downwards. At that stage we were attributing the compression post rot to shower activity dampness working its way down the side of the shower tray. Maybe it was a combination of factors. I recommend you do some testing of the post and bulkhead with a screwdriver blade without delay. We did not have to take down the mast, however. A couple of acro-props were used to bridge the load of the mast down to the hull while the compression post and bulkhead were cut away. Whilst it all sounds rather frightening, it proved to be a fairly straightforward job for a competent shipwright and not too expensive, circa $2000 Australian. Regards, Roger, Mango 28, Zorba On 09/10/2005, at 11:37 AM, Mike Gough wrote: G,day Roger, --------------------------------- YAHOO! GROUPS LINKS Visit your group "amelyachtowners" on the web. To unsubscribe from this group, send an email to: amelyachtowners-unsubscribe@yahoogroups.com Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- --------------------------------- Yahoo! Music Unlimited - Access over 1 million songs. Try it free.
|
|
|