944 Wheel Loader - Engine ?

I know it sounds kind of crazy, but have you thought about fixing the window?

My father inlaw is a retired lifetime caterpillar engine mechanic. He bought a D320 about 3 years ago that had a rod go through the block. He said depending on which side it was you could fix it, and did so. He ground the sharp edges off around the hole, made a plate to cover it, drilled holes in all four corners, drilled and tapped the block to hold the plate. He made a gasket and used good sealer. Had the crankshaft repaired, rebuilt the engine and it works great. I've got it at my house.

His was done on the rear cylinder on the right side. I'm sure if it would work of not would depend on the damage to the engine and if there is clearance inside and out.

I hope this helps.

Chris

Chris: thanks for the insights I have seen repairs similar to your Dads approach that have lasted a long time. Have also seen patches welded in place to repair the hole after the crank and connecting rod were cleaned up.

Was there an upgrade engine to the D330 while the 944 was in production?

How would we know with no s/n or series number?

The earlier 944 used the D330B turbocharged 4.5" bore engine, the last ones built in Glasgow (77J series) used the 4.75" bore D330C engine, I believe they were interchangeable, but also understand that the 944 may have ceased production in America a bit earlier with the introduction of the 950, the first few 950's also had the 4.5" bore engine, they are likely to fit, the other contender is the 955H engine but it would need a few pieces changing over including the fuel injection pump/governor group.

The 43A series 944 was built in the U.S. up until 1968, when it was replaced by the 930. The early 90A series 950 was built up to 1968 as well, so could indeed be a source for a 4.5" bore engine.

Have a couple of engines that you might consider. One is a D330 from a 944 loader. We own it, but I have never seen it. It is still at the previous owner's place in a shed. Also have a transmission. This would have to be confirmed by putting hands on it.

The other option is a D330c on a generator that needs re-ringing. It got "dusted" when it ingested a mud dauber"s nest. The little devil found a hole where an air filter restriction gauge had been removed and not plugged off and he built inside the intake pipe and air filter

One day the nest apparently broke up and suddenly the generator began smoking and loosing power. Local CAT mechanic diagnosed injection pump problem and sent it to CAT dealer to be overhauled. short version is that didn't help and I found the remains of a mud nest inside the air filter when I removed it to prepare for the first startup with the newly overhauled pump.

From the "for sale/wanted" section of ACMOC: (nice engine, current bid is $882)

http://m.govliquidation.com/mobile?cmd=auction&item=view&auction_id=10136949

I think I might know what you mean. My 980 originally came with a 60 degree v8 which had so much trouble that Cat made retrofit kits for the 980 to install the venerable 3306 in place of that troublesome v8. If you're looking for an engine to fit in place of the d330, a 3304 or a 3208 may be viable options as far as physical dimensions go-but these may require heavy adaptation. Another way to go is the way Dick Lloyd went with his 6cyl D7E-you could put a d333 in your 944. You'd have to move the radiator, counterweight(if present), and sheet metal back (to accommodate the length of 2 more cylinders) as well as relocate the front motor support, but these modifications may be easier than adapting one of the sleeve metering engines.

My 3306-powered 980 is a joy to use and well worth the effort invested in this adaptation.

Cheers!