Cummins Forum

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Feed-merging three firstgen forums into one.
Updated: 1 min 46 sec ago

Engine vibrates more than I think she should

Tue, 08/31/2010 - 16:00
So my truck drives me nuts. It seems to run really good, smokes when I want, blows 28 PSI when I want, Starts and runs great, but man does she vibrate. At idle it just shakes away...like I'm a little leary to even have my wife sit in the thing. Driving at low RPM the shake is there, but...

maby stupid but worth asking injector ?

Tue, 08/31/2010 - 14:00
ok got a guetion for you guys is it possible to drill the injectors to a bigger size i work at a machine shop and have the capabilites just not sure if possible

bad day for me...

Tue, 08/31/2010 - 14:00
just bought my new boat, pulled it up my driveway and the tranny decided to slip and not go up... so now my boat and truck are stuck in the driveway crooked cause i cant go forward (narrow driveway and a cliff on one side and a straight up hill on the right).. and cant go back due to the boats...

fuel leak under hood

Tue, 08/31/2010 - 14:00
big time! I opened the hood casue I smelled alot of fuel and there was fuel spraying all over the place. I shut her down and got her home. How do I get to the fuel lines behind the pump to check out the connections? My bro used to wrench on Dodge trucks and said it happened all the time-guys coming...

intercooler- p-stroke or 2nd gen ?

Tue, 08/31/2010 - 14:00
alright first off which one would be better/ easier i have been looking forums and cant find any topics over swapping intercoolers except for non i/c trucks was wondering since mine is already there how hard is it and whats needed ?

HT60 Exhuast Housing (How bad is it?)

Tue, 08/31/2010 - 14:00
Well I picked up a primary for my future twin project off ebay. Unfortunately it seems the exhaust housing has seen better days [laugh] Looks as though it has gotten very hot! Image: http://i915.photobucket.com/albums/ac351/ScottPowers/Dodge%20Project/003-4.jpg There are about 6 cracks all the...

Ignition Trouble

Tue, 08/31/2010 - 13:00
In the process of doing a body swap. The new cab was a 5spd, but we are putting a our old column shift steering column in it. During the swap I noticed that the ignition was able to turn without a key in it! Now, after it has been installed, it is locked up. (wheel locked, shifter locked) and it...

Question on 5spd shifter, and 2nd gen seats

Tue, 08/31/2010 - 10:00
Has anyone installed 2nd gen seats with the aftermarket cupholder on the center console, with the 5spd getrag? I got the 2nd gen seats in, and I'm about to order the cupholder console for it, but before I did, I'm trying to figure out if the cupholder is going to interfere with the shifter...has...

Just Rebuilt my kingpins

Tue, 08/31/2010 - 09:00
Had pretty good luck and the truck seems a lot happier. Steering is tighter with less wander and less vibration on the highway with my worn out old tires. If anyone is thinking of doing this and wants some advice I will answer any questions I can.

Linked up front??

Tue, 08/31/2010 - 07:00
Who here has done links with either coils or coilovers?? would LOVE to see some pictures of what you did!!

mabey stupid but worth asking injector ?

Tue, 08/31/2010 - 06:00
ok got a guetion for you guys is it possible to drill the injectors to a bigger size i work at a machine shop and have the capabilites just not sure if possible

colder a/c ??

Tue, 08/31/2010 - 04:00
Ok whats yalls thoughts on this ? what if i was to header wrap the a/c lines up, would it help make the freon colder with less engine bay heat getting to the lines?

hard shifting into third gear

Mon, 08/30/2010 - 23:00
hey i have a 1990 cummins 250 with a 5 spd manual in it. when im shifting up from 2nd to 3rd it grinds but will slide in with litle pressure in but is fine going from 3rd to 4th and then when im down shifting from 4th to 3rd i cant get it into third at all. i've been told something about a blancer...

Allison 1000 behind a 12v

Mon, 08/30/2010 - 23:00
Anybody run an Allison 1000 behind there 12V in there first gen? How does it fit with the floorboard n all?

Fuel Sending Unit

Mon, 08/30/2010 - 21:00
I just bought a 1990 W250 last night and it needs a sending unit. I called the dealership, napa, and a couple salvage yards and can't find one. Does anybody know where to get one from? Thanks, Blake

new boost & trany temp gauges

Mon, 08/30/2010 - 19:00
i just put in my new boost and trany temp gauges. the 1st thing that surprised me was that my boost reads 0 while cruising and then when the load increases the boost increases, i guess i thought it would always read over 0. anyway when i put the peddle to the metal it will read almost 20 #. with...

Electrical Diagrams?

Mon, 08/30/2010 - 19:00
thought maybe some here would know of a website with some wiring diagrams for these trucks.

stock ride height

Mon, 08/30/2010 - 19:00
I had my leaves re-arched, and a leaf added, but the truck seems to still be sitting low, so I am going to have the guy who did my leaves redo them, but I am not sure how much more arch they need to sit right. Anybody have an idea of how high off the ground the frame of a 1993 4x4 3/4 ton should...

non i/c twins

Mon, 08/30/2010 - 17:00
Im trying to get things together to do twins on my '89. The twins are coming off of my '01, so I will have to do some tubing work. The '89 has 40hp injectors, Denny T pin and pump maxed, and will have an Airdog. Does anyone have pics of some non i/c setups? Id like to get some ideas of how to...

3 pc pulse manifold....

Mon, 08/30/2010 - 17:00
has anyone used one of these? the three piece exhaust manifold from ATS, i think. advertised to spool the turbo faster:drool2:, less back pressure:thumbsup:, better economy:party018:? for $470 including gaskets, it sounds like a decent price and looks like its a straightforward job as far as...