will a 267 diesel fit in a 1976 case 680e backhoe?

walkerlp · Dec 13, 2015

Hi will a 267 Diesel engine fit in place of a 336 case Diesel engine in a 680e backhoe year 1976

casecollectorsc · Dec 13, 2015

Bell housing pattern should be the same.

walkerlp · Dec 14, 2015

How about the crank, will it bolt up. Mines a torque converter and the 267 is clutched. Also will the hydraulic pump bolt up the same. The motor I'm looking at is still in the hoe so I have no way to know? Can anyone answer these questions. The 267 is 1968 and mine is a 1976 with a 336 .

Nordic · Dec 14, 2015

(quoted from post at 18:55:53 12/14/15) How about the crank, will it bolt up. Mines a torque converter and the 267 is clutched. Also will the hydraulic pump bolt up the same. The motor I'm looking at is still in the hoe so I have no way to know? Can anyone answer these questions. The 267 is 1968 and mine is a 1976 with a 336 .

I know this isn't the answer to your question but is your 336 beyond repair? I rebuilt mine in a 680G ... they are good engines to work on.

walkerlp · Dec 15, 2015

Yes turned the bearings in the block, I brought it this way. Had no idea how hard it would be to find another 336!

Nordic · Dec 15, 2015

(quoted from post at 06:40:06 12/15/15) Yes turned the bearings in the block, I brought it this way. Had no idea how hard it would be to find another 336!

Yes I agree they are hard to find. I had an extra one (just as a spare) sitting around for about 12 years until I made a long distance move last year then I sold it. The 336 comes in two versions and the bigger crank journal type is found in loaders and bulldozers etc, but will bolt right into a 680 as well. Some guys have put Detroit diesels in the 680's also but then there is a lot more retrofitting before you're done.

RGMartin · Dec 15, 2015

So the block is bad? Or the crank? 3" mains?

If a 3" main engine, you could have the block bored for a 3.5" main crank. Then you could set out on the hunt for a cranks for one of those... even bigger search I suspect.

My 10 year old son bought an 870(336 big journal) that needs bottom end work. I am afraid to start into it for fear of what I find.

walkerlp · Dec 15, 2015

I think another engine is my best option, to find another crank would be just as bad as finding an engine. Does anyone have any answers on
the 267 fitting in place of the 336?

RGMartin · Dec 15, 2015

A direct injected 267 with pencil injectors( as used in a 770 tractor) is externally identical to a 336 when they are in ag tractors. I can't imagine they made a special version for the industrial side.

What is the 267 out of?

walkerlp · Dec 15, 2015

The 267 is out of a 1968 case 680ck backhoe

walkerlp · Dec 16, 2015

Found out today the bell housing on the 267 is different from the 336, so the answer to my question is no. Have to start searching for a 336
again.

RGMartin · Dec 16, 2015

Have you talked to a machine shop? How bad is your block? Probably going to be money/time ahead to fix even if it costs major $$$

336 crankshaft/block/balancer parts were scarce and expensive 25 years ago.

will a 267 diesel fit in a 1976 case 680e backhoe?

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