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Re: Yanmar 2GM 20 breather hose!


 

There should be some foam or something under where the breather attaches to
the engine (see the service manual for the engine) that catches oil so
it doesn't go out the breather, but the crankcase gases will still have
cylinder blow-by (partially burnt diesel). White smoke is generally
associated with partially burnt diesel, not oil (that's described as "blue"),
so that doesn't sound exactly like oil from the breather getting burnt,
or pressure forcing more oil into the cylinders. And yeah, that should
be unkinked. Don't be shy about putting heavier, thicker hose on there
with the same inner diameter.

Running for a period of time at dock making smoke should be okay and if
it's a temporary build-up of fuel in the exhaust manifold, it should clear.
Too much too long and you're causing soot build-up.

I have some diesel work to do too =|

-scott

On 0, "tartan2767@... [T27Owners]" <T27Owners@...> wrote:


My Tartan 27 #332 from 1967 was re powered before I bought it last January
with a Yanmar which has been running great until a few days ago when I
noticed some oil in the bilge and discovered the breather hose had worked
itself off the nipple of the valve cover. When I went to push it back on
the hose fell off in my hand and I struggled to discover where the other
nipple went but eventually reattached both ends again one on the valve
cover the other to a nipple headed toward the air intake silencer. After
starting the engine in ran for 20 seconds then white smoke began exiting
the exhaust and I shut the engine off. The hose did have a bend in it the
may have restricted the flow. Any suggestions, I was going to replace the
hose and try again today



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