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Gen III Dakotas 1997-2004 Dakota-Specific Questions

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post #1 of Old 09-15-2010, 08:12 PM Thread Starter
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Front main seal

'02 4.7L... My front main seal is leaking - how bad is this to change - in a driveway... What would be the cost at a shop? What is the repercussion of not doing it right away?
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post #2 of Old 09-15-2010, 11:00 PM
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Never done it personally, but according to the FSM, it is pretty much just a matter of pulling the balancer, pulling the old seal out and putting in a new one. Calls for tool #8511 and 8512

FSM attached
http://www.jkbweb.net/fsm/2001DakotaManual.pdf
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post #3 of Old 09-15-2010, 11:26 PM
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Quote:
Originally Posted by Newbie View Post
'02 4.7L... My front main seal is leaking - how bad is this to change - in a driveway... What would be the cost at a shop? What is the repercussion of not doing it right away?
Other than it'll continue to leak and you'll have to keep adding oil, none.

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post #4 of Old 09-15-2010, 11:40 PM Thread Starter
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That's what my neighbour said - Cheaper to buy oil!
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post #5 of Old 09-16-2010, 12:47 AM
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I just took off and reinstalled my harmonic balancer and seal. It's pretty simple to remove with a 3-jaw 2-ton puller. The installation of the seal and balancer needs Miller Tools 8512 (or an equivalent like the one I made), and the seal installer (Miller Tools 8511) to set it to the correct depth and alignment.

If you have the tools it's easy. If you don't have the tools then it can get real expensive to change out a $10 part.

2002 Graphite QC SLT Plus, 4.7L, NV3500, Superchips 3715, HO Cams, 2003 Intake Manifold, Dwight's 65mm TB, 3.92 LSD, R/T rear swaybar, no chrome
2001 Patriot Blue Durango SLT, 4.7L, 545RFE, Superchips 3715, Fastman 68mm TB, Jeep GC TCM, R/T rear swaybar, 3.55 Open (for now)
1999 Forest Green Dakota RC Sport, 2.5L, NV1500, Jeep 4.0L TB, 3.92 LSD


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post #6 of Old 09-16-2010, 12:51 AM
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Impact gun to remove balancer bolt (makes it a breeze, time saver). Chrysler balancer puller, AutoZone rents this tool.

I pushed the new seal in with a big socket till it was flush with the timing cover. Did this about 4 years ago, it doesn't leak.
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post #7 of Old 09-16-2010, 01:19 AM Thread Starter
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Impact gun to remove balancer bolt (makes it a breeze, time saver). Chrysler balancer puller, AutoZone rents this tool.

I pushed the new seal in with a big socket till it was flush with the timing cover. Did this about 4 years ago, it doesn't leak.
Cool, can you swing buy New Brunswick and give me a hand??? LOL I do have an impact gun but not the Miller tools mentioned or Chrysler balance puller or an Auto Zone.
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post #8 of Old 09-16-2010, 05:52 AM
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Cool, can you swing buy New Brunswick and give me a hand??? LOL I do have an impact gun but not the Miller tools mentioned or Chrysler balance puller or an Auto Zone.
I can sell you the Miller Tool equivalent I made if you want. $40 plus shipping via whatever method you want.
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2002 Graphite QC SLT Plus, 4.7L, NV3500, Superchips 3715, HO Cams, 2003 Intake Manifold, Dwight's 65mm TB, 3.92 LSD, R/T rear swaybar, no chrome
2001 Patriot Blue Durango SLT, 4.7L, 545RFE, Superchips 3715, Fastman 68mm TB, Jeep GC TCM, R/T rear swaybar, 3.55 Open (for now)
1999 Forest Green Dakota RC Sport, 2.5L, NV1500, Jeep 4.0L TB, 3.92 LSD


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post #9 of Old 09-16-2010, 10:54 PM
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Don't need a seal installer, just find a socket that's right about the same OD as the seal. Knock it in carefully, straight and flush with the cover.

Any 3-jaw pulled will likely work fine, just make sure that you pull from the center of the balancer, not around the pulley. You'll pull it apart and junk it that way.
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post #10 of Old 09-16-2010, 11:26 PM
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its safter to use a ballancer puller if you dont know what your doing. you cant hurt it that way

'93 Dak, V6 Auto RWD;
V8TB, E-fan, and a bad smoking habit.

IN THE WORKS:
'92 318 swap, coming closer to completion every dime I can squirrel
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post #11 of Old 09-17-2010, 12:29 AM Thread Starter
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Thanks for all the help and advice guys. I think I will get a balancer puller, I am sure I can rent or borrow one. I think I am going to wait until spring to tackle this one!
On another note, I tried to upload a pick of the truck but it keeps failing? I guess the pic size is too big? I dont know how to shrink them... yet.
Great site though, lots of support.
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post #12 of Old 09-17-2010, 02:04 AM
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www.photobucket.com

'93 Dak, V6 Auto RWD;
V8TB, E-fan, and a bad smoking habit.

IN THE WORKS:
'92 318 swap, coming closer to completion every dime I can squirrel
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post #13 of Old 09-17-2010, 02:37 AM Thread Starter
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Like so?

Here she is. Will get better pics

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post #14 of Old 09-17-2010, 02:38 AM Thread Starter
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Thanks Shimrra.

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post #15 of Old 09-17-2010, 03:12 AM
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Quote:
Originally Posted by Shimrra View Post
its safter to use a ballancer puller if you dont know what your doing. you cant hurt it that way
if you use a 3 jawed puller and pull on the hub, not the outter ring, you wont hurt anything.

i got my 3 jaw puller from advance, $20. you dont absolutely need an impact for the job, but it makes it easier if you have one handy.

and while your in there, pull your mechanical fan off and throw that fucker away.

Hi, my name is Brad, and I have an addiction to Dakotas.
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