Poll on front crank seal longevity



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Thread: Poll on front crank seal longevity

  1. #1
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    Poll on front crank seal longevity

    have a leak of oil near crank seal, spitting around onto the blk plastic shroud in back of lower engine. Suspecting crank seal over oil pan seal, as it is spitting around to the shroud. Does this sound logical, and in how many miles could one expect this to occur? (99 voyager, 3.3L, 133,000miles)

    Thanks!

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    Talking

    Quote Originally Posted by pippo View Post
    have a leak of oil near crank seal, spitting around onto the blk plastic shroud in back of lower engine. Suspecting crank seal over oil pan seal, as it is spitting around to the shroud. Does this sound logical, and in how many miles could one expect this to occur? (99 voyager, 3.3L, 133,000miles)

    Thanks!
    There hasn't been any discussions (to my knowledge) on "Front" crank seals, however, we have discussed getting the "Rear" crank seal (Rear Main Seal) done whenever you have the tranny serviced (major tranny overhaul). I had mine done at 160kmiles (for a GEN1, that's the second tranny rebuild). When I rebuilt my 3.3L at 167kmiles, I replaced the front seal, as "PR" (I was there replacing the chain, so I also replaced the front seal).
    1990 Plymouth Grand Voyager LE 3.3L LWB-- 207,000 miles and counting ......
    333,134.21 kilometers, for you metric buffs ......
    For Sale - Make Offer


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    Crankshaft seal

    Quote Originally Posted by AzTraveller View Post
    There hasn't been any discussions (to my knowledge) on "Front" crank seals, however, we have discussed getting the "Rear" crank seal (Rear Main Seal) done whenever you have the tranny serviced (major tranny overhaul). I had mine done at 160kmiles (for a GEN1, that's the second tranny rebuild). When I rebuilt my 3.3L at 167kmiles, I replaced the front seal, as "PR" (I was there replacing the chain, so I also replaced the front seal).
    I have 117000 klm on my 3 ltr. 2000 Caravan and the front and rear seals are ok. touch wood!!!!!!
    2000 Caravan 3 L. 17-20 MPG. 134,000 klm. New tranny at 97 K. Tires are P205 70R14 Bridgstone M+S. 123,800 KM. replaced tensioner pulley, serpentine belt, and power steering pulley.
    Old reliable - 1982 Dodge Ram Long Box 318 Auto 3 speed transmission 66 K.

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    All seals are fine on my '97 3.8 with 135,000 miles
    2001 Infiniti i30 3.0 DOHC V6: VQ30DE 177,000 miles; 1999 Nissan Altima GLE KA24 168,000 Miles
    1997 Dodge Ram 1500 SLT Laramie 5.9 46RE, 182,000 Miles
    Prev. 97 T&C LXi 184k 3.8, 94 T&C 3.8 156k Miles, 93 GV LE 3.3 123k

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    hi to the best of my knowledge syn oil will keep the seals softer than regular oil -that may prevent the seals from getting brittle

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    Front seal replace

    I recently noticed an oil stain on the oil pan underneath the front crank seal on my '96 3.3L 120,000m. Prior to the leakage, oil level/usage was 1/4-1/3 qt between oil changes (5000 miles). Now, crankcase oil level drops considerably with freeway trips but around town miles still not much oil loss.

    I suspect oil pump housing seal, which of course is at the front of the engine. Have discussed the issue with my able mechanic and car will be in the shop soon to investigate further. Will keep you posted.

    Vince

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    I just noticed mine was leaking this morning while I was changing the serpentine belt. I have 253K miles, so I guess I can't complain. I plan on changing it very soon. I'll chime back in after I've replaced the seal

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    The leak isn't uncommon as the vehicles get up there in age. I would guess that an average lifespan of one is 175k miles. Some leak earlier, some never leak.
    Candy the van. '98 Sport 3.8L 132,200 miles. Used trans at ~96k. Great piece of my life and a fine van.

    '69 GTO drop top
    www.facebook.com/people/Andy-Greif/1410438927

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    Hey Pippo, I had posted an oil loss propblem on the 3.3/3.8 engine forum. I was going through a qt in 200 miles but couldn't see any profuse leakage, the tail pipe was clean and my coolant was clear. Only seepage I found was the front crankseal and the oil cooler. I just changed the front crankseal yesterday, and it was the easiest I have done. My factory manual referenced a special tool, which I found after I removed the pulley, would not have worked. The stealer said it would have cost over $200 plus parts and oil change to do the job. I have a 97 T&C with the 3.8 engine. The 3.3 is pretty much the same. I'm going to have to drive it for a while to see if the seal takes care of the high oil usage. If you are going to do this job your self, its pretty basic. Took me a couple hours after modifing my pulley puller to keep the bolt centered on the crankshaft.

    97 T&C 193K miles orig. trans
    Dave in VA.

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    Mazda can you post a pic of the mod you did on the pulley puller? Thanks

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