Re: [Amel Yacht Owners] SM Prop Shaft Seal direction and Bush*** IMPORTANT RESPONSE***
Jose, I really appreciate all of your participation in this Group. Thank you very much.
My following response is not intended to be an argument to you, but, it is intended to give those people in the Group who are "new-to-Amel" the reasons NOT to follow your advice. Remember there are a number of things that can go wrong with the installation of the wear bushing and seals. I am absolutely positive that changing the seal orientation from what Amel recommends was NOT the reason for your changing results.
Let's make this simple:
What is more important? Oil leaking out, or water leaking in? The answer to the question is obviously oil leaking out, and that is probably the reason Amel recommends a redundancy of seals (2 instead of 1 to hold oil in) to protect your 35,000 euro C-Drive from melt down because of no oil.
To not service a 35,000 euro C-Drive for 8 years (4 times the manufacturers recommended service interval) is not a RISK that I would take and is one that I do not recommend any of my clients taking. Afterall, you are going to haulout every 2 years anyway, why try to save a few hundred euro and risk 35,000 euro?
Let me share with you a summary of a page in my Amel School Book:
Amel has stuck with the same C Drive Bushing, seals and procedures for over 25 years and today recommends the same procedures in new 55s and 64s, which have the same wear bushing and seals. The only change Amel has recommended is the change to 80/90 gear oil. I know for a fact that Amel has experimented with several options and may be close to making a change to the wear bushing which may give it a longer life. But, I assume rather than busing wear with a harder bushing the seal will wear. This may be an insurmountable issue because with a very hard bushing good seals will eventually leak because they wear rather than the bushing.
On Mon, May 7, 2018 at 11:47 AM, jvenegas@... [amelyachtowners] <amelyachtowners@...> wrote: