has any one put a cummins in a chevy with an adapter that sets the motor in at a slight angle? What's the deal? It bolts up great to the trany but the adapture is made to set the motor at a little angle. Is this for more room near the axle? It would have been very close had it went stright down. Will this couse any problems with the motor, or wear funny? Does any one know what all the cummins went it as far as trucks?

 

If the angle is slight, say less than 15 degrees, I can't see how that would have any negative effect. Obviously laying it over like an old slant 6 could cause some lube problems from oil pooling where it shouldn't, but a little tilt won't hurt. Any engine has to be capable of being operated at angles you would normally encounter both on and off the road.

If it helped with axle clearance I'd bet that's why they did it.

Cummins 5.9's come in Dodge Rams, and also in the lighter (class 6 and down)medium duty trucks from most American makers (Ford, Freightliner, etc. - basically anybody but International), as well as Class A RV's, small public transit buses, and school buses.

 

Could the slight angle be designed to counter the torque?
What I mean is, if the engine was in there strait and the engine was placed under a load, would the engine twist on the mounts (due to the torque) and hit something?


Rich

 

I don't know about the torque but now that you said that it could be. I've never seen a motor of any kind in at a little angle. I wonder if it will look bad in like that!
I also need to find a starter somewhere.

 

alot of 4BT were installed in the Kurbmaster Van in a slant , and had turbo 400 behind them . probably what you got . alot of the old 855 block engine in the Ford were installed in a angle also , I hated working on those. but with half the motor in the cab and the rest out was the only way it would fit .

 

maybe it's tilted so you can get at the lift pump easier.

 

maybe they figured it would put out less power when tilted that way taking it easier on all the GM parts bolted up downstream of that cummins

 

Do you think I chould leave it like that, or pull it and find a nother part and make it stand up. Maby i'll leave it so it wont have much power . I want it to set up right, but I don't want to spend another $550. They won't let me return what I have bens I have installed it. Live & Learn!!

 

I don't see any problems with it as long as it's not laying over on its side. It's no different than driving on roads with a bad crown, it's well within what the engine was designed to tolerate.

 

That would be my first guess. The L10 Cummins in the Ford L9000 trucks set at an angle to help alleviate torque stress of the frame.

 

I don't think it's a problem. I met a gentleman last year with an 86 Chevy crewcab dually with a 5.9 mated to a turbo 400. The engine sat angled toward the passenger side of the truck. I can't remember why it had to sit like that, but he said there were no problems with his setup.

Randy

 

Are ther clearance issues with the hood or anything?

 

There aren't any problems with the hood clearance. And just for kicks and grins I bolted it down so the engine set upright correctly. I've decided to put the lean in my transmission and transfer case. I know there's plenty of tranny fluid in the pan so there won't be any problem with how the transmission runs or the transfer case. If I had left the engine at a tilt the oil pan would not have cleared my cross member on the driver side. There's less than a 1/2 inch clearance now between the fire wall and the exhaust manifold. There is about 3/4 to an inch of room between the waste gate and the air conditioning and heater core box. The motor mounts I bought from ford cummins.com will bolt right in to my existing GM motor mount trees with the front holes of where the old motor mounts came from. However these holes have to be drilled out to fit the larger bolt that comes from the Dodge motor mount. To get those to line up you have to move the transmission and transfer case back aproximately an inch and a half or so. It's almost a bolt in application. I still have to remove the factory clutch fan and use two electric fans on the radiator.

 

sounds like a bit of work, next ya need to fill your gallery up with some pics of it installed. swappin motors while staying within the lines to say is tough enough, to go the extra mile is a helll of an effort.
<<<<<<<<<<<,, buys round for him and his friends that helped

 

Yeah, you can't do something like this and not give us any pics! Sounds like a time consuming project, but will be a one of a kind when she's done.