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I got the numbers off of the tag today. WXLC-3, 4 1/4X4 3/4,  181398.  I assume the last is the serial number.  Any way to tell what year it is?

Now that we have concluded that the tractor is a CGH, What about the engine??  The original engine was a WXT, this was the early version of the wx series of engines.  The bore was 4 1/4" stroke 4 1/2" . That size later became the WXC3 when that series of engines was expanded.  The engine you say you have is a WXLC-3, this is a 4 1/4 bore by 4 3/4 stroke engine.  Now this engine was used in the M2 high speed tractor the US military used in WW11.  The M2 was made by Cletrac so it could be just a bolt in replacement!  The millitary engine had two canister type oil filters just above the water pump.  It also had a higher compression ratio of 6.5.

Th engine is a wxlc-3.  Says so on the tag on left side of engine.  It just has one oil filter though.  I had the head off and it has aluminum pistons in it but I don't recall what size they are.  The guy I bought it from said it was an old See-Bee dozer?  I thought maybe the original went bad and was replaced with this one.  The crawler is orange, no signs of olive drab.

Yes with those measurements I would agree that it is a CG, actually a CGH, the H being for the Hillside or wide track model with 61" gauge. Both the CG and DG used the 7.25 pitch tracks and 5 roller track frame.

Thanks for all of the help with my crawler.  It's nice to know what I actually have.  Thanks again.

I measured the crawler today and here is what I found.  No notch in the frame.  From end of bellhousing to first set of bolts on motor mount: 35 inches.  From end of bellhousing to end of front of frame: 50 inches.  Looks like it is a CG.  The pitch of the tracks are 7.25 inches and it has 18inch pads, 5 roller track frame, 61 inch tread width.

I would appreciate you posting what you find out when you get a chance.  Thank you.

Going throu all my books, it looks like the CG is much the same as the DG with a smaller engine.  Both used 7 1/4" Pitch tracks with a 5 roller track frame.  Both were available in 48 or 61 inch gauge.  The CG is just a few hundred pounds lighter.  The CG is 119 3/4 inches long the DG is 124 3/4 long.  The CG used a WXC 3 engine the DG a RXC engine. I would expect the CG is shorter due to the smaller engine and the fame infront of the transmission would be shorter.  I will measure my DG frame  so you can compare it to yours.  Does yours have one or two speeds in reverse?  The later DG had two reverse speeds the CG was not made that way.

I would appreciate it if you would post the measurements you have for your crawler.  This crawler just has the one speed reverse.  Thanks in advance.

Like the pictures.  Mine looks real close to the one pictured.  Maybe that is what I have.  I guess I need to get the tape measure out and do some more measuring.   What would be a tell tale sign to what model I have?

I guess it's possible but I have never seen a DG to compare it to.  I was calling it a CG because it has a WXLC-3 Hercules engine in it.  I think the original was a WXT and I thought this would have been the replacement for it.  Is the DG physically bigger dimension wise that the CG?

I have what I think is a styled CG.  But the info I have on the CG says that the track width should be 48 inches and mine is 64 inches.  Mine also has 18 inch wide track pads.  The serial tag is gone.  Did they make a CGH?

I didn't get a chance to work on the old girl today.  It only got into the low 30's today and I don't have any heat in the shop.  I think I have an adaptor somewhere that I can screw in the spark plug hole and connect it to an air hose so that I can do a leak down check like you suggested.  I appreciate all the ideas that you guys have given me.  Hopefully it will warm up a little so I can get back to it and my other project (clutch and TA in a 1086 IH).

I had the crawler runnning again this evening and I disconnected the air cleaner at the carb.  I noticed that instead of a constant suction sound that I heard a fluttering sound coming from the intake part of the carb where the air breather hose would attach.  I would guess that maybe the intake valves might be leaking by and causing this.  The crawler runs good except it just won't idle the way I think it should.  Maybe I am being too picky.  I have spent alot of time and money on it and want it to be right.

have you checked the spark plugs ? if too lean is your problem they should be clean and white. if you do not have the air breather connected your mixture will be to lean . if the choke is left partially shut ,do you get a smoth idle ? check for manifold leaks by spraying  WD40  around the intake and see if the engine speeds up. try advancing the timing a couple of degrees and see if that smooths the idle .
                                                    good luck
I haven't taken the plugs out to check them but I will.  The air cleaner is connected and makes no difference if it is off.  I sprayed carb cleaner around all of the manifold mounting points and the only time it made a difference was when I sprayed where the throttle shaft is so I guess that might be the problem area.  Running with the choke partly closed makes it run rougher.

does the engine black smoke when it is running ?  does the idle mixture screw have any effect on the idle ?is your fuel supply clean ? does the mag have a good blue spark ? have you checked the compression on the engine ?low compression and weak valve train can cause it not to idle.
 
The engine does not black smoke at all. If I let the engine idle slow and turn the idle screw off of its seat it will start to run rough and die.  I just cleaned the fuel tank out and put sealer in it along with a new sediment bowl and in line filter so the fuel should be clean.  The mag will jump a 1/2 inch gap so it should be good.  I ran a compression check on it a couple of years ago and I believe they were all between 90-100 psi.

I have a problem with the zenith carb on my OC-3 with the IXB-3 Hercules engine.  It runs good at fast idle but it will not idle smoothly at slow idle.  I have to have the idle adjusting screw all the way turned in to get it to even run at all at slow idle.  I have taken this carb completely apart several times and soaked it in new carbutetor cleaner for almost a week.  I can get air and canned carb cleaner through all the passages.  I don't know what to do next.  The throttle shaft does have some slop in it.  Would this cause this engine not to idle?  Any ideas?

I put a straight pipe on my OC-3 after putting on a new manifold from Zimmermans.  It wasn' t really that loud at first but after a couple of years it is now really loud.  I have to wear ear plugs to even putt around on it.  I am going to put a muffler off a small tractor liks a AC B or C on it.