Besieged by L423 diesel engines

Cracked head or blown head gasket usually. Its possible to get it from a cracked block, but not as likely.

(1) Blown head gasket

(2) Cracked head

(3) Cracked block

That's all I can think of, for a diesel.

That is what they told me, cracked head.

Right, with the head gasket being FAR more likely. Probably 90 - 9 -

Bob

I hope this water doesn't smell like diesel fuel, if the injector pump leaks internally it will put diesel in the crankcase. Depending on oil and diesel fuel grades it does not always mix well. Sometimes (not always) looks like droplets of water on stick. But will still have strong smell of diesel.

By the way, do you have the bell housing size or measurement for these engines?

I have a Generac generator that was destroyed by a tree hitting it a few years back. The engine ran fine but the generator head was gone. Parts were too costly and insurance replaced it. It is a mitsubishi 1.5L 4 cylinder liquid cooled, I believe it to be a 4G15 industrial engine. I have tried to find a welder or forklift or car that needs this engine but have not had any luck. The difficulty is that it is set up for LP gas (can also do natural gas) and has all manner of solid state controls that would have to be removed and replaced by whatever this engine would be replacing. I will send you a bellhousing chart off list for you to view. I am not sure but I think mine might be a #4. If you are interested or have something that might work for this engine give me a shout. I am in southern Indiana (close to Louisville KY). Thanks Lyndell

I have no idea what it smelled like.

The engine was removed and transported by VERY ignorant people, shall I say without getting into details and being accused of improper stereotyping.

I do not, but knowlig L423Ds, this is a standard SAE bell housing.

There is a 12 lead reconnectable generator head.

Lyndell, this is about 30 kW 12 lead reconnectable head.

My generator is 15kw so this engine is half the size it would need to be. I forgot your e-mail will not go thru. If you like send e-mail off list and I will get it to you. Lyndell

Iggy, here ya go!

ichudov AT gmail DOT com

Isn't that engine a wet sleeve engine???? Bad sleeve seals were pretty common once they got up in years.

Remeber the reply Posted by Steve Lusardi on December 23, 2010, ? Back when you were buying your first one???????

Top 3: Cracked head, cracked block, blown head gasket (usually from improper torquing of the head) not necessarily in that order.

Magnaflux the head, and if you don't find anything, magnaflux the top portion of the cylinder sleeves, rotating the crank to get to them. Apparently, the L423 uses a wet sleeve, with water behind them.

If you don't find anything, pop a new gasket on and try her again, or pull the whole block down and flux it. Perhaps check with a couple of diesel mechanics to ask for any of their special tips and rebuild prices.

I've seen auto engines broken by the mechanic when they replaced a thermostat. The bolts were different lengths and one went through a water jacket. It cost him a new intake manifold. My sister's mechanic did that to her head on a VW station wagon. The exhaust bolts were different lengths and he didn't pay enough attention when pulling them. Rice burner engines sometimes have water tubes running inside the heads. Many a Honda head has been replaced when they rusted out.

-- Worry is a misuse of imagination. -- Dan Zadra

I do not think that that engine has an oil cooler, no.