d7e

1965 build year. 180h.p.

thanks are the 180hp engines good? are there any issues that i should check ..it seems to run good but i have not used it yet..i have only just got it

Should be a 160 HP engine. After 48A6883 I believe was the 180 HP. Not sure on he 47A's.

Sorry my bad, misread the serial #.

47A3678 up shows as 180 h.p.

The paper work on our two 47As show them both being 1964 models one 3030 we still have and 3464 was the one we put the high horse 46A D8H engine in.

The paper work on our two 47As show them both being 1964 models one 3030 we still have and 3464 was the one we put the high horse 46A D8H engine in.

dick, Are you saying that you put the 6cyl, cat D342 engine in a gear driven D7E and ran it...????? Chum

Yes, we ran it quite a few years doing farm work and pulling a large Yielder no-till drill. With the 4 cyl. engine we were running to much of the time with a high speed lug and pulled pistons in it twice. Also the finals were running to hot, they didn't color the paint but you were not going to put your hand on them. We were shifting a lot and picking up from stop really loaded them. I measured everything to see if I could make it work, but I missed one thing and didn't catch it until I was totally commited. The 6 cyl. sets an inch higher in the frame than the 4, which changes everything! The problem was easy to solve on the front end as I welded the ends of an old D8 frame onto the ends of the 7 frame just an inch lower. The rear was a different ball game, I had gotten a 36A flywheel and housing to use on the 46A engine I had found, but the inch kept the housing from working. I had a machine shop rework my original housing, closing some mounting holes and adding some. I had the ring gear removed on the 36A flywheel and turned the mounting area down to use my 47A ring gear, and use the 36A clutch. That got both ends working. The next problem was remounting the pony an inch lower on the block. The worst part of that was rebuilding the manifolds. I used the D8 radiator, nose, hood and dash. Cut off the front end of an old bellypan with pullhook and bolted it on, when we got stuck we needed something to get a hold of. Everyone told me the finals wouldn't take it, if there was any shock loading I'm sure they wouldn't. We didn't have any trouble as that was one problem I was trying to solve. I never found a time I couldn't press my hand on the case which was just warm. The extra power cut the shifting to almost nothing. As far as I know the tractor is still farming. Sorry, didn't koow I was going to write a book.

dick. Well I never even considered that was possible, Wow! Cool, Was this tractor set up strictly for drawbar work. Seems it would have became very nose heavy, did you have any issues to over come with that? Was it an 235 horse or the 270 horse model D342 Engine? I also would of thought the D339 and D342 would of sat in there mounts the at the same height,...... strange??? Must of seemed like a go cart with all that extra horsepower! Did it seem to make the tractor steer hard, or cause premature wear on your undercarriage? How did your fuel burn/hour compare with your D7E with the D339 engine? You said under a continuous steady load (no shock loads) day after day you saw no premature driveline failures, how many hours would you say you had put on that crossbreed. One last question, probably after telling you it wouldn't work, what did your local caterpillar dealer think of it. A curious Chum.