I am just about set to tune the engine up. The only stumbling block is I can't find the proper fluid for the reversing gear.
The (25 year old) manual calls for ATF-A type fluid. I can't find that anywhere, even online. Is that an older type that may be rebranded? Or does anyone know if there is a current ATF fluid that is compatible with ATF-A?
I asked the local Yanmar service center and they said to use SAE30. That erodes my confidence in them as the manual clearly calls for ATF.
Any ideas? Tim (Allen) - have you changed the reversing gear fluid in your 2QM15?
Thanks!
Yanmar 2QM15 - Reversing Gear Fluid
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As far as I know, oil grades supersede each other. It's a generational thing, and each generation can substitute for those that came before.
That is to say that grade B will also work in machines that need grade A. Grade C will work in grade B and grade A machines, etc.
I guess I'm saying that any old ATF oughta work.
That is to say that grade B will also work in machines that need grade A. Grade C will work in grade B and grade A machines, etc.
I guess I'm saying that any old ATF oughta work.
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I've done a bit of research and I'll answer my own question. Mike, you're a little bit off - some ATF's are backwards compatible while others aren't.
ATF-A has given way to Dextron II and Dextron III.
Here's what Nigel Calder has to say in Marine Diesel Engines:
ATF-A has given way to Dextron II and Dextron III.
Here's what Nigel Calder has to say in Marine Diesel Engines:
Nigel Calder wrote:Most transmissions operate on 30-weight engine oil or automatic transmission fluid (ATF type A - normally Dextron II or Dextron III; the latter is an improved formulation of the former and is interchangeable with it). Note that mixing some different types of transmission fluids (e.g., A and F types) can destroy transmission seals, so be sure to stick with whatever the manufacturer specifies.
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It is said that the definition of insanity is repeating the same process over and over while expecting different results. heheFigment wrote:hmmmm, I wonder if this is why we blew the tranny in that plow truck for 8 consecutive winters....
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Re: Yanmar 2QM15 - Reversing Gear Fluid
Not yet -- but thanks for doing the research for me! ;-)#218 wrote:Tim (Allen) - have you changed the reversing gear fluid in your 2QM15?
Tim Allen -- 1980 Peterson 34 GREYHAWK
Harborfields Housekeeping Cottages, West Boothbay Harbor, Maine
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Harborfields Housekeeping Cottages, West Boothbay Harbor, Maine
Sailors for the Sea, a new voice for ocean conservation
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No problem!
Also, I've got the operation and service manuals here if you need them:
Operation:
http://www.rambunctiousracing.com/files/2qm15.pdf
Service:
http://www.rambunctiousracing.com/files ... ervice.pdf
Also, I've got the operation and service manuals here if you need them:
Operation:
http://www.rambunctiousracing.com/files/2qm15.pdf
Service:
http://www.rambunctiousracing.com/files ... ervice.pdf
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Thanks, I've got them. What you really need though is the Parts Manual - do you have one of those? (I think I've got two...).
Tim Allen -- 1980 Peterson 34 GREYHAWK
Harborfields Housekeeping Cottages, West Boothbay Harbor, Maine
Sailors for the Sea, a new voice for ocean conservation
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Sailors for the Sea, a new voice for ocean conservation