In article ,
Molesworth wrote:

In article ,
Wayne.B wrote:

On Thu, 18 Sep 2008 16:48:45 -0500, Molesworth
wrote:

I've now got all the manuals and I'll look at the wiring diags. I've got
the heat exchanger and water pump off.. just the inlet man to remove
before I can lift the head.

You should probably take the head to a machine shop and have it
checked for warping and cracks.

Although I've only got the port side stripped down, I can't see any
leaking from that side of the head. Also, on disassembling the heat
exchanger, coolant ran out, as it did when taking off the water pump, so
it didn't run completely dry (grasping at straws here).

But there is diesel in the oil in the sump.. :-(

--
Molesworth

If you have diesel in the LubeOil, then look for a leaky Mechanical
Fuel Pump Diaphram, or a blown seal in the Injector Pump......

--
Bruce in alaska
add path after fast to reply

Bruce in alaska wrote in news:fast-C316E2.08580120092008
@netnews.worldnet.att.net:

But there is diesel in the oil in the sump.. :-(

--
Molesworth

If you have diesel in the LubeOil, then look for a leaky Mechanical
Fuel Pump Diaphram, or a blown seal in the Injector Pump......


How old is this engine? There's always some diesel in the lube oil,
especially in an old engine with loose rings.

If the lube oil RISES....then we have a problem.

Some diesel makes it past the rings, expecially when she's cold and blue
smoking. It's why we change the oil often....

I don't like to just pull the dipstick and look at the level in any diesel.
They all should USE a little oil between changes. But, you can REPLACE the
lube oil with diesel in a perfectly normally working engine...The level
stays relatively constant....not good.

In article ,
Larry wrote:

Bruce in alaska wrote in news:fast-C316E2.08580120092008
@netnews.worldnet.att.net:

But there is diesel in the oil in the sump.. :-(

--
Molesworth

If you have diesel in the LubeOil, then look for a leaky Mechanical
Fuel Pump Diaphram, or a blown seal in the Injector Pump......


How old is this engine? There's always some diesel in the lube oil,
especially in an old engine with loose rings.

If the lube oil RISES....then we have a problem.

Some diesel makes it past the rings, expecially when she's cold and blue
smoking. It's why we change the oil often....

I don't like to just pull the dipstick and look at the level in any diesel.
They all should USE a little oil between changes. But, you can REPLACE the
lube oil with diesel in a perfectly normally working engine...The level
stays relatively constant....not good.

The motor is 2003. Doesn't use any oil normally, but I noticed the level
had got higher when I checked.

PS Found the buzzer circuit!

--
Molesworth

--
http://www.stcustards.free-online.co.uk/

Molesworth wrote in news:ukmole-
:

The motor is 2003. Doesn't use any oil normally, but I noticed the level
had got higher when I checked.

PS Found the buzzer circuit!



Not good. The other posts were spot on as to possible answers. Don't run
it this way just to ruin it. Could also have a cracked ring, or cracked
head letting the pressure (and fuel spray) inside the cylinder blow into
the head past a leaky valve seat, etc. It needs to be torn down by
competent mechanic and repaired.

B..ring
O..ut
A..nother
T..housand

Very unusual for a Yanmar to break....great little engines.