Front seal install tool - JeepForum.com
 
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post #1 of 8 Old 07-15-2019, 07:19 PM Thread Starter
Mr. Puddles
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Front seal install tool

I'm fixing to have to replace a leaking front seal. I remember someone talking about a crank seal install tool but I'm drawing a blank in trying to find one. Can anyone help me out?

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2002 Dakota aka Winnie aka Mad Max
1996 Grand Cherokee aka Puddles aka Pikey Life
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The 4.0 is dumb old tractor motor, itís too stupid to know itís supposed to die.
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post #2 of 8 Old 07-15-2019, 09:39 PM
wkbear
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That would be @wingless

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post #3 of 8 Old 07-16-2019, 01:21 AM
Timo_90xj
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It is a nice tool and makes installing easier, but it is not a 100% necessity. At your own risk though, if you're not careful without the tool, it's possible to misalign the timing cover, which will cause a front seal leak.


I haven't had any issues with mine on the V8, no tool used. However, I did use the damper to help in aligning the timing cover.
I did the same thing on my XJ 4.0 years ago, worked just fine. That being said, if you can find the tool at a nice low price, why not.

1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...


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1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***

***Under construction***
1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***
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post #4 of 8 Old 07-16-2019, 04:16 AM
Boone96ZJ
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or... a block of wood, hammer until flush

96 5.2 242 3" 32x11.5
https://www.jeepforum.com/forum/f13/1996-grand-cherokee-laredo-5-2-a-2570290/
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post #5 of 8 Old 07-16-2019, 04:34 AM
Timo_90xj
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Seal itself is the easy part if the timing cover is out of the engine, and seal can be installed with whatever method is desired. I used a block of wood and a hammer. However, when re-installing the timing cover back to the engine, it needs to be properly aligned in relation to crankshaft - that's where the installation tool is handy. But like I wrote, damper can be used to aid in aligning the seal.


If replacing the seal with the timing cover not removed from the engine, the seal installation tool helps a lot.

1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...


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1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***

***Under construction***
1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***
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post #6 of 8 Old 07-16-2019, 05:02 AM
wingless
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This reply shows the Miller 6635 tool for locating the timing cover to be concentric to the crankshaft.


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post #7 of 8 Old 07-16-2019, 07:32 AM
zjosh93
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I just used the harmonic damper to align them like Timo said. It's been 8 or 9 years since I replaced the timing chain with no leaks so it must be fairly well aligned. The Miller tool runs around $90 or so.

I have a set of PVC seal installers I made to let me install seals over shafts (crank, trans input, etc.). Just sections of pipe with fittings welded to the end. You can get a pretty full range of sizes if you mix and match bits.
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post #8 of 8 Old 07-16-2019, 11:04 AM Thread Starter
Mr. Puddles
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I installed the seal in the cover off the engine when I was building the engine last year. It started leaking about 3 months after I got it on the road. If I get above half throttle she starts smoking. Add in the rubber is staring to disintegrate and I'm going to replace the pulley at the same time. I'm just getting tired of leaving oil slicks where ever I go.

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2002 Dakota aka Winnie aka Mad Max
1996 Grand Cherokee aka Puddles aka Pikey Life
Quote:
Originally Posted by kg6mov View Post
The 4.0 is dumb old tractor motor, itís too stupid to know itís supposed to die.
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