What are the complications fitting a 1V2490 D318 motor out of a DW10 to a 5R D6? The DW10 motor has an oil clutch housing but the flywheel and the clutch are gone. My D318 engine book has the DW10 listed along with the D6 dozer and marine engine. Will an early 9U dry clutch housing and flywheel bolt to the 1V Block? The motor has the boss on the front cover for the front motor support. Did the DW10 have the dozer style oil pump? My parts book for the 5R D6 and the early 9U D6 shows the same part numbers for the flywheel clutch enclosure(9B854) and dry clutch (6B9148). Thanks Brian Boaz

I assume you have the old D4600 engine and clutch? I don't have a Dw10 parts book to compare oil pumps etc, but the only different D318 block I am aware of is in the oil clutch graders, so I think the basic long block is the same. If you want to do it, I can supply oil pumps, oil pan, pickup pipes, brackets for them, governor etc. What about front support? Is it the same. I think the rubber mounted bushing 4F6936 is still available for the 9u at least.

Early 9U and DW10 have the same crankshaft, engine block, oil pan and three section oil pump. Flywheels and clutch housings should interchange. I don't believe the DW10 was oil clutch, used a foot operated dry clutch similar to graders. According to my 1V1-up Parts Book which may not cover a high enough s/n to show an oil clutch.
Always a challenge to play mix and match.

ccjersey the rubber mount bushing (4F6936) is still available. Just bought one for a 9U but the part number changed to 5M2817. I still have the 4600 motor and it is running but tired so that gives me the clutch and the two part clutch enclosure. The Dw10 motor is complete, just needs to be put back together. I think all the parts are still together. You wouldn't happened to have a 9U flywheel for a dry clutch and clutch housing you would want to get rid of? Look at Old Magnet's reply, I think that is all I need to make this work.

Old Magnet Just what I wanted to hear. Now it is time to dig this motor out of the storage shed and start gathering parts to make this work. Makes it a lot better when someone confirms it will work instead of gathering up a bunch of parts to find out they are not compatible. Was the DW10 clutch an automotive style clutch? Seems like I remember seeing a breather and dipstick on the flywheel housing of this 1V motor like for an oil clutch before I put it in the storage shed. I will get it out and see if I can find some numbers on it.

Thanks for your replies. bboaz

My understanding is the 1V series ended in 1953 before the oil clutch appeared.
Yes you could call it an automotive type clutch, 3 finger style.

Oil clutch stuff, I can fix you up, but only dry clutch I have is a pto clutch on a D318 power unit. I should probably disassemble it and use the parts because I don't have a use for it anymore. It would save me the cost of an overhaul on another engine.

I have supplied 9U oil clutch conversion parts to a couple folks, so surely those parts are laying around somewhere. I'm not sure what is different about the governor on the DW10 but if it won't work, i have some 9U governors we could use to make up a good one. I have run a 9U with a sluggish governor and a good one is heaven in comparison.

Thanks for the replies and information. Someone surely has the parts laying around somewhere. We will see how the DW10 governor responds in this application. Should be interesting. Plan on pulling a 60 scraper with this machine.

ive got a dry clutch and a flywheel from a 9u, its yours if you pay the shipping, im in fort st john b.c.

Thanks, That's the best offer I had so far and by all means a start. Can you strap it to a pallet and get a weight. My zip code is 65584, but the freight terminals are in Springfield and Stafford Missouri and it would save a little on freight if I pick it up at a terminal. Maybe I can get a freight cost if you can get me a shipper and origin address. This 1V motor has got an oil clutch housing bolted to the back of the motor. I think someone just bolted this housing to the motor since it only has a couple of bolts holding it. Maybe someone else will have the (5F7974) Housing that bolts to the back of the motor and provides the mounting for the pony motor. Cell phone number 573-433-9277. Thanks Brian Boaz

I asked a similar question a while ago and there were a few other issues to consider to make the swap. This was assuming the donor engine was from a 9U.
D318 into a 5R

Regards

Phil