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SD20 Saildrive parts

Posted: Sat Oct 23, 2010 1:22 pm
by philiprmcgovern
I stumbled across this link to a parts diagram for the lower unit of the SD20 saildrive and thought it might be helpful to someone:

http://www.cruisersforum.com/forums/att ... 1210030280

It appears to be a page from the Yanmar shop manual and it includes part numbers. I needed to replace the prop shaft which snapped into as the boatyard was replacing my props. It snapped into because my evil PO had drilled a hole though it sideways for a cotter key. Apparently, he didn't like Yanmar's design for keeping the prop on the shaft. The shaft, not counting bearings, seals or labor cost $509.00 -- ouch! So far, the other shaft seems to be holding together OK.

Moral: Don't be tempted to drill a hole through your prop shaft.

Phil McGovern
s/v Sunshine
36036

PS: I now have two props -- one folding and one fixed -- for sale. If you are interested in them, give me a call at 317-366-8083.

Re: SD20 Saildrive parts

Posted: Fri Oct 29, 2010 9:13 am
by Bob
Hi Phil, What size is the folding prop?

Re: SD20 Saildrive parts

Posted: Fri Oct 29, 2010 10:20 am
by philiprmcgovern
Hey, Bob:

When we get back aboard, in a week or so, I'll check and let you know the pitch and size of both props. If it should slip my mind, please remind me.

I hope all is well with you.

Phil

Re: SD20 Saildrive parts

Posted: Sun Nov 14, 2010 10:54 am
by philiprmcgovern
Bob:

The folding prop is 15" X 9. I've decided to keep the fixed one -- just in case.

Phil

Re: SD20 Saildrive parts

Posted: Sun Nov 14, 2010 6:38 pm
by Bob
Thanks, Phil, I've changed out my 15 x 9 for 16 x 11. Big difference! I had to modify my skegs a bit to do it.