power loss

[jakestrailer]

My 1991 Dodge (known as the white opossum, you never know when in may play dead) has develoved a new problem. Yesterday while hauling a 580 case backhoe it was hurting for power. The engine started cutting out at floor board throttle. The exhaust noise made a sort of "wap, wap, wap..... " simular to the noise that a diesel pulling tractor makes when cold and over fueling. After unhooking from the trailer it still did this, in fact setting still and in park if you put your foot into it, it still makes that noise. I have had it do this before but only when cold, it would stop once it warmed up. I'm going to go grab a new fuel filter and see if that helps.



One more thing, I think the injection pump is getting weak. I have aquired a BOSH 011 82409968 inline pump and lines. (they are new and look to be in good shape. other numbers on the pump are pes6mw 100/320 any one know if I could convert this over to work. and if so how would I set up the tps for the automatic transmission.



I know a lot of questions, but please help if you can.

Thank You

Kent

 

[jakestrailer]

I tried the new filter no luck, I also tried the trick of cracking the injector lines to see if it is missing on a cylinder. no luck there either. I is only during accelerated revs that it shows up. At a idle it is there but so random it is hard to tell. Any ideas

 

[J DeMaio]

Hello:



I had a problem with engine surging and the fix was quite simple, fuel conditioner. You may want to try that. When you cracked the injector lines was there a lot of pressure out of every line and was equal amounts of fuel coming from each one? If that is a no, it is probably the injection pump. I'm no professional but these are a few more tricks to troubleshooting. Hope this helps.



As for your inline pump delimma, I think it would be quite complicated to get it on the older engine. They have different front gear case covers. I don't know how hard it would be to make an adapter yourself to get ti to fit up. That could be done for a lot cheaper than changing gear cases.



The best thing to do would be to get your current pump checked out and either get it rebuilt or just exchange it for a 230 horsepower pump already rebuilt. That would get you more power.

 

[GOODE11]

KJacobsmeyer,



My 1 ton did the exact same thing to me. Changed fuel, injectors, filter, etc... even 1K on a new injector pump. None of which helped until my Dad suggested to make sure that the fuel supply line to the transfer pump was clean. Pulled both ends off (one at the transfer pump, the other at the tank) and blew it out w/ air.



Needless to say 6 or 7 chunks of glass came out!! I pulled the tank and the in-tank filter (screen) was full of glass and was also ripped. New in-tank filter and it was good as gold. Needless to say I will not be going back to that pump shop!



This is what did it for me.

 

[jakestrailer]

J DeMaio

Where do you get a exchange on a injection pump??

 

[jakestrailer]

FYI

I took the pump off my 1991 and headed to the pump shop.

Got a call yesterday, bad news, the head was a goner. Seems the plunger springs had broke, as well as the keyway on the internal pump shaft. The pump shop was suprised this thing was still running at all. Under closer inspection I found out the truck has had a MOPAR REMAN pump put on it. No doubt during the recall period for the runnaways. The truck only had 102K miles, hope everyone else has better luck with reman. Darn thing is I'm the 3rd owner of the truck and they wouldn't transfer the warranty to me.