I have a 1998 jeep wrangler sport with a inline 6 motor. I know this isn't a camaro but i figured someone here could help me because i have no luck with anyone else on the jeep forums. Now my problem is this rear main seal keeps going out and scoreing my crank i have had a total of 4 seals go out and one crank get scored. I do go in the mud some but i have talked to others who have the same jeep as mine and put there jeeps through mud that is well over the bumpers and they have no problems. Heck i don't go through mud that is like a half a foot deep. Hell i could go down a dusty road and it would probally break the seal. Now please can someone tell me some things i can check out on my motor that i can help so the seal won't keep going out? please can anyone help me on this. Thanks

Chris

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What's the dealer say? It should still be in warranty? If not, how is it failing? Is it squeezing out? or drying up?

just my 2cents,

but it COULD possibly be a bad thrust bearing in the engine , thus when you place the engine under load (like in the mud) it causes the crank to come forward, thus leaving a gap in the rear seal and it comes out.,

I only say this because I had a old L6 in one of my 67 mustangs , and too many neutral drops wasted the thrust bearing and I had the same problem, it may well not be the cause of your problem, but I figured i'd tell the story just in case.



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chris you came up with what i was gona say, too much endplay on the crank.

get your end play checked out, and if it has too much find out why! you might have a nice warenety claim here.