Project: Alice

[rwjohnstone]

This past weekend I got the motor positioned where it needs to be on the frame. Now I need to make a few adjustments. Once I get my camera back I will go into some more detail, but I think a few more inches of lift are instore for Alice...

Now it comes to the radiator... Stock, the truck came with a 3 core 17"x22" in decent shape.. only problem is the outlets are only 1.5".... I know there are a ton of posts and threads about this same topic and soon I will have a full writeup on the research/future plans to keep this beast cool. For now its back to work, and later, back to welding... ah the things we do to drive Jeeps....

[JeepinPete]

I wouldn't be surprised if a stock V8 sized radiator would be plenty to keep the Cummins cool. The more efficient an engine, the less heat it throws into the cooling system. A Cummins is arguably pretty close in displacements and power output to a AMC V8, but a heck of a lot more efficient.

[jeepmj_tj]

my stock v8 radiator keeps my 6cyl cummins cool. only time the electric fan comes on is in hot summer traffic or towing up grades. no mech fan either.

[rwjohnstone]

I know the Cummins is a cool running motor and very efficient, in my mind its the only option for a diesel, I just want to build everything up now while I can plan for it. One day if all goes well I would like to get a larger turbo, P-Pump, injectors, and a jake brake. So I might as well build it big now or design it to easily accommodate a larger cooling system if needed. Hopefully I will have some pics up tomorrow sometime...

[76FSChief]

I am using the stock 360 rad for my Cummins swap! Spent some time on the Cummins forums researching the issue. Lots of people were using their stock rads for swaps.

[JeepinPete]

RW, a question on the gauges. Is the glass flat or domed?

[rwjohnstone]

RW, a question on the gauges. Is the glass flat or domed?

The glass is domed. Cant wait to put them in. Need to know anything else?

[rwjohnstone]

All right, I know that one of the main concerns when doing this swap is keeping this engine cool so here are some specs and details from searching around on this site and others.

Stock Dodge radiators:

1990 Dodge W250 Standard(w/o inter-cooler) - 15.75" x 30.25" x 1.5" (2 Core)
1994 Dodge Ram 2500 (w/ inter-cooler) - 36" x 19.25" x 2.25"
1999 Dodge Ram 2500 (w/ inter-cooler) - 36" x 19.25" x 2.25"

Stock Jeep radiators:

258 six cylinder - 16.25” x 24.25” x 1.25”
360 V8 -15.875” x 26” x 2” (3 core)
-or- -15.875” x 26” x 2.625” (4 core)

I know there are some differences through the years but these are the most common and best numbers for "approximate" measurements for Jeeps

Radiators different members have used in their 6bt swaps:

Budojeepr - Flex a lite 56000L - 26” x 18” x 3.75”

http://www.ifsja.org/forums/vb/showthread.php?t=131069&page=3

Resbum - Flex a lite 58000 - 33.625” x18.5” x 3.75” 2 core

http://www.ifsja.org/forums/vb/showthread.php?t=151930&page=2

Mikel - Summint Racing - 27” x 19.625” x 2.25” 2 core
http://www.ifsja.org/forums/vb/showt...=131069&page=3 - (post#29)

Several others are using stock radiators and claim to have no issues keeping this engine cool no matter how/where they drive or what they are pulling. Most people have an electric fan setup of some sort, commonly from a Taurus or a few from an XJ.

I do believe I am satisfied. My stock radiator should work just fine....for now







Many people have done this swap and left the stock radiator from their 360 or even 258 motors and have not had any problems.

[Resbum]

Great post full of good info for people doing swaps. Thanks for taking the time.

Resbum

[rwjohnstone]

Great post full of good info for people doing swaps. Thanks for taking the time.

Resbum

no problem, i know i am not the only one who has done that, I will add to it as time goes on and I find more info/links. Just trying to give back for all the knowlege you and others have shared with me.

[jeepmj_tj]

The only thing that I have had to do to my stock radiator was have the lower neck above the steering box turned 90* and point toward the passenger side. This allowed me to run a crossover lower hose.

[rwjohnstone]

I brought the engine to a friend of mine to get it cleaned up and do some of the simple things to it, I need to get the truck out of the shop as soon as possible, so I am trying to get everything that requires heavy lifting done so I can bring it home to my shop. List of things for the engine: Killer dowel pin, rear main seal, throw-out bearing, pilot bushing for clutch, 60 lb. springs, general clean up and paint.

We took the timing cover off the other night to do the dowel pin, only problem was.....the pin is gone....after doing some research online I am one of only a handfull of cummins owners that have had the pin fall out and not go rocketing through the side wall/blow up the engine on the planet. I have really really good luck and really really bad luck, there is no in-between it will be one or the other. Camera will be back soon, transfer case cross member is half built, front to be lifted up, and lots of welding this weekend.....

[lobie]

I've read about the pin coming out so I opened my cover up. The pin was almost about to fall. I did the pin trick and also tightened some of the bolts in there.

[rwjohnstone]

I've read about the pin coming out so I opened my cover up. The pin was almost about to fall. I did the pin trick and also tightened some of the bolts in there.

Nice catch, not many people have it come out, guess we are just lucky

The tranny was pulled off, throwout bearing was about gone, input shaft a bit grooved, not too bad. Clutch is muticolored and abused. Now the hunt for a new clutch begins....any suggestions? Going to search after work today....

[lobie]

Now the hunt for a new clutch begins....any suggestions? Going to search after work today....

I have ordered from phoenix friction before.

http://www.phoenixfriction.com/