Engine/Transmission (1994 - 1998) KD 3136 Fan tool

[NETim]

Just about done with my infamous KDP tab fix job. I also decided to change out every rubber hose associated with the cooling system at the same time. (This either makes me the all time preventative maintenance King or the world's biggest worry wart. )



Anyway, the other day while visiting the local NAPA store, I noticed they had the KD fan clutch tool on clearance and the box happened to say "Dodge Cummins B engine '89 to present" so I bought the darn thing.



Now that I have it, I have to admit I don't know how to make it work. Where does the large "crowfoot" wrench fit on the fan clutch?



Now if the dealer could only get me two more molded 90's, I could refill the radiator and test my work.



I hope that front seal doesn't leak!!!



Thanks!



Tim

 

[KSTRS]

I'm in the midst of the same job... . my front seal surface on crank had a very noticable groove, cummins sleeve requires a $200 tool, hope mine doesn't leak either.

 

[Reb.B]

i built my fan wrench, did some grinding on a 1. 25" wrench, (i think), then u put a crow bar behind the fan pulley and then hold the pulley while u turn the wrench clockwise. The fan threads go the opposite way as everything else. as for the crank seal, thats easy, u install it a little deaper then stock because there is a dust seal in front of it now. Make sure not to get any oil on the seal or the crank shaft or it will leak. Just install the seal from the front, get a rag, lay it over the seal, then get a short 2x4 and lay across that and hammer away easily and wa la, its done. Oh and don't lose the plastic that goes inside the seal for installing the seal over the crankshaft when putting the cover back on. , ... Good luck

 

[Bob4x4]

The large crowsfoot fits over the pulley attatching bolts to keep it from turning while you loosen the fan clutch.

Bob

 

[NETim]

wrench

Thanks! I kinda thought that's where the crowsfoot works... on the pulley retaining bolts.



It appears though that the bolt heads have to be aligned properly, i. e. , the flats have to be parallel for the wrench to work in this scenario.



Don't remember seeing anything behind the pulley itself to get a grip on. Not that you could since the pulley overhangs the bearing/mount on the backside anyway.



I have the seal installed IAW instructions so I am relatively confident it'll work, it's that Mr. Murphy visits my garage all too often.



Tim

 

[illflem]

The easy way to remove the fan with one tool is with an air chisel with blunt tip hammering on the right side of the nut flat. If you don't have air a long drift and big hammer pounding in the same location does the job every time also. If you do the jig fix the kits come with two fan wrenches, one for the nut, the other fits over several of the pulley retaining bolts, works slick.

 

[NETim]

air chisel follies

I used my air chisel to loosen the fan clutch nut. It worked great except that my resident machinist, who shall remain nameless (ahem), did not radius the corners of the chisel face after grinding it flat. The end result was a small gouge in the nut on one flat when the chisel kinda got away from me. No big deal but how I am ever going to pass myself off as a professional mechanic?



I bought the wrench set when I saw it on clearance. I figured it might be nice to use to tighten up the nut.



So anyways, my KDP tab job is basically done. Hopefully I get the last two 90's today for the cooling system from the dealer. Then I can refill the radiator and crank 'er up.



I've taken too long to get this job done, but I wanted to take my time and get it done right. Hopefully I did.



Thanks again,



Tim

 

[Dull Pain]

NETim



I've taken too long to get this job done, but I wanted to take my time and get it done right. Hopefully I did.





You ain't the only one - I finished tabing mine Wed nite. Took me 4 days off and on. Just took my time as I did not need truck. Could do one now in 4 hrs if I had too. I too worried about the crank seal. Do you install it from the front, from the back ?? Still don't know.



I put mine in from the front of case. My crank snout had definite wear grooves on it but about 45 minutes of road driving since repair and I have no evidence of leak. Hope it holds out. My KDP ( 94, 3500, 4x4, w 118k) had not moved and all bolts were tight.



It's worth the peace of mind tho. Ever since I joined TDR I have been afraid to drive my truck fearing the KDP. Now on to the bombing.

 

[NETim]

seal

Um... I installed it from the front. Then I read the part in the manual where it instructed to install it from the rear side.



I baked the cover and froze the seal and it went in relatively well from the front.



It didn't seem right to attempt to drive it from the rear side of the seal because that's where the actual seal surfaces are and I didn't want to damage them.



I still haven't fired it up yet as I'm still waiting for the molded 90 degree elbows to show up at the dealer. I am replacing all of the hoses on the cooling system at the same time.



Maybe next week.



I am mightily relieved to know that the KDP will not migrate into the internals of the Cummins and gum up the works.



Tim