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Put the transmission into gear to leave the mooring this weekend and didn’t have the forward thrust I thought I should have had with a vibration that felt like the prop was fouled. Put her back on the mooring and dove on the prop. Some barnacles, which I thought might have caused some vibration. Worked the prop a bit and freed it up. Back on board we started out again. Some vibration still and still short on thrust. Went sailing anyway. Came back to mooring and checked the transmission, then the transmission fluid. Oh No! Milky transmission fluid. Any ideas? Input please? What do I do next?
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I would suspect water intrusion. Possibly the transmission heat exchanger.
AlanSent from my iPhone
On Jul 15, 2013, at 7:33 AM, “Jubilee” wrote:
Put the transmission into gear to leave the mooring this weekend and didn’t have the forward thrust I thought I should have had with a vibration that felt like the prop was fouled. Put her back on the mooring and dove on the prop. Some barnacles, which I thought might have caused some vibration. Worked the prop a bit and freed it up. Back on board we started out again. Some vibration still and still short on thrust. Went sailing anyway. Came back to mooring and checked the transmission, then the transmission fluid. Oh No! Milky transmission fluid. Any ideas? Input please? What do I do next?
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Drain and flush transmission. Check transmission cooler. You may have to
remove it and pressurize. If you need a new one, here’s where to get it:
lencocoolers.com. They have all our coolers mostly because they made
them. Nice people to deal with. And you don’t pay the Westerbeke prices.Bob
On Mon, Jul 15, 2013 at 7:36 AM, Alan wrote:
I would suspect water intrusion. Possibly the transmission heat exchanger.
AlanSent from my iPhone
On Jul 15, 2013, at 7:33 AM, “Jubilee” wrote:
Put the transmission into gear to leave the mooring this weekend and
didn’t have the forward thrust I thought I should have had with a vibration
that felt like the prop was fouled. Put her back on the mooring and dove
on the prop. Some barnacles, which I thought might have caused some
vibration. Worked the prop a bit and freed it up. Back on board we
started out again. Some vibration still and still short on thrust. Went
sailing anyway. Came back to mooring and checked the transmission, then
the transmission fluid. Oh No! Milky transmission fluid. Any ideas?
Input please? What do I do next?_______________________________________________
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—
Bob Fine
s/v Pelican
Pearson 424 Hull #8
http://thesailinglife.blogspot.com
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Probably a hole in your transmission cooler. I strongly suggest pulling the transmission and sending it out for a rebuild. Removal is a simple wrench job that you can do yourself and the rebuild should cost well under $1k. You can replace the heat exchanger for about $100. The rebuild should take a week or less. If your transmission was never serviced, it was probably due anyway.
While you have it out, take a good look at the damper plate. I don’t know much about them but I’m aware that there are springs in there that get weak with age.
Rich
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It does sound like water in the ATF. The cooler is about the only way to
get water in there unless the boat was partially sunk. I wouldn’t bother
testing the cooler, just replace it.
I agree with Rich, might as well take the tranny to a good shop and have it
re-built, if necessary.
Many shops recommend replacing the damper plate whenever the tranny is
removed. If you have one of those plates with metal springs you may not be
able to get a replacement. It appears that most of the engine
manufacturers have gone to plates with rubber-like springs. Anyway that
was the situation when I replaced the damper plate on my Yanmar. Unless
you replace the damper plate with an identical one you may need shims in
the bell housing to fit it properly. Getting that engineered will probably
require input from Westerbecke.Regards,
John Stevenson
http://www.svsarah.comOn Mon, Jul 15, 2013 at 8:41 AM, wrote:
Quote:Probably a hole in your transmission cooler. I strongly suggest pulling
the transmission and sending it out for a rebuild. Removal is a simple
wrench job that you can do yourself and the rebuild should cost well under
$1k. You can replace the heat exchanger for about $100. The rebuild
should take a week or less. If your transmission was never serviced, it
was probably due anyway.While you have it out, take a good look at the damper plate. I don’t know
much about them but I’m aware that there are springs in there that get weak
with age.Rich
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Sounds like the same symptoms I had when Silverheels’ transmission oil
cooler failed in the Exumas a year or two ago. If so, you need to replace
it, of course, but first and foremost and immediately flush out the
transmission with fresh fluid over and over until it comes out perfectly
clean. It took me about a dozen changes. Tedious, but it spared me a
transmission rebuild so I’d say it was worth it. I emptied mine by pumping
out the fluid with a small hand pump. There may be more efficient ways.Good luck,
Tor
Silverheels, P-424 #17
http://www.silverheels.us
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I want to change my email address for this group from
to . The spammers have discovered “tonto” and are
attacking my inbox in force. I’m going to redirect all emails sent to that
address to SpamArrest, where the spam can rot in a trash bin I never visit.
Meanwhile, so that the members of this group don’t have to type in a
squiggly word to email me, please use from now on.
That’s where all group discussion emails need to go, too; everything from
. Anyone know how to make that happen?Thanks,
Tor
Captain Tor Pinney
http://www.silverheels.us
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Thanks for everyone’s input. I spoke to lenco coolers and ordered a new cooler. ($265) Should arrive today. Hope to have everything up and running by this weekend. As long as the transmission is ok, I’ll wait until it’s out of the water this winter to remove it and have it serviced/rebuilt. Once again, thanks! It’s great knowing there’s a place to go to when there’s a problem with our boats.
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You might at least change the transmission fluid twice. Once to get rid of the bad fluid and a second time to clean it out of residual water. If you caught it early enough there may be no damage as a result of water intrusion. You may be due for a rebuild anyway. Having the transmission fail while underway is no fun.
Regards
Rich
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I agree with Rich, only I changed mine a lot more than twice before it came
out 100% clear. I did catch it early. It didn’t need a rebuild.Tor
Silverheels, P-424 #17
http://www.silverheels.us
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I’ve used a hand pump to suck out as much of the transmission fluid as I could. I’ll get the new one cooler on and run new fluid through the transmission, suck it out, repeat, repeat, repeat…. until it comes out clear. Keeping my fingers crossed that I caught it in time and there won’t be any problems.
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That seems like the best you can do. I hope you immediately filled it back
up with fresh fluid while you wait for the new cooler. Leaving the
transmission empty with an undiluted sea-watery oil coating inside could be
disastrous.My transmission had been totally, professionally rebuilt barely 600 engine
hours before my oil cooler failure. So it was in excellent shape inside, or
so I assume. That may have contributed to the success of my multiple fluid
changes early on. As I believe someone in this group mentioned already, if
your tranny was marginal with age an use when the oil cooler failure
occurred, this influx of seawater may be the proverbial straw that breaks
the camel’s butt no matter what you do. Do you know how long your
transmission has gone since it was either new or rebuilt?Tor
Silverheels, P-424 #17
http://www.silverheels.us
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Tor….I think the tranny is original to the boat. She spent most of her life as a dock queen and didn’t have a lot of hours on her. We’ve changed the transmission oil 7-8 times and still not as clear as I’d like it. Going to keep going.
Thinking I might pull the tranny this fall anyway. My question is, should I go to someone who specializes in marine transmissions? Will a regular car transmission shop work just as well?
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I am among the less mechanically inclined members of this group. I don’t
know whether an auto mechanic could rebuild a marine transmission. The guy
who rebuilt mine when I first got Silverheels and repowered her does nothing
but marine. My guess is an expert is better than a generalist in this case –
certainly there are differences between boat and car trannies – but that’s
only my guess.Hopefully one of the smart guys here will answer your question more
authoritatively.Tor
Silverheels, P-424 #17
http://www.silverheels.us
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I, like Tor, am not mechanically inclined. I suppose an automotive
transmission mechanic could fix it, but first he would have to get the
service manuals. I’d go with a mechanic who is knowledgeable on this
specific transmission – is it a Velvet Drive? If so, you may be able to
find a service dealer here: http://www.velvetdrive.com/distributorsm.html.Regards,
John Stevenson
http://www.svsarah.comOn Mon, Jul 22, 2013 at 7:36 AM, Silverheels wrote:
Quote:I am among the less mechanically inclined members of this group. I don’t
know whether an auto mechanic could rebuild a marine transmission. The guy
who rebuilt mine when I first got Silverheels and repowered her does
nothing
but marine. My guess is an expert is better than a generalist in this case
–
certainly there are differences between boat and car trannies – but that’s
only my guess.Hopefully one of the smart guys here will answer your question more
authoritatively.Tor
Silverheels, P-424 #17
http://www.silverheels.us
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