MaxiNoob98

So I need some expert advice on what is going on. I recently replaced my front crankshaft seal, due to an oil leak, and after buttoning everything up I notice oil leaking from the new seal, behind the pulley, and some oil leaking from the bolt head itself.

My question is, Should I go and buy a new crank pulley to go with the new seal? because I read on here that the old seals can wear a groove into the pulley shaft. I checked the pulley and it doesn't feel like it has any "grooves" or indentations anywhere, but it does have a couple of dark rings cause by the old seal spinning in that position. Are these markings an obvious sign that I should replace the pulley? I want to double check before I spend any more money on parts that I may or may not need.

Thanks in advance.

CS_AR

Can you show us a picture of the leak?

What brand/type of seal was used when it was replaced?

Crankshaft pulleys usually go bad when the rubber area disintegrates allowing the outer ring to slip.

MaxiNoob98

Unfortunately I didn't take a picture of this. I got frustrated and immediately removed everything, ruined my new seal too ($10 in the trash).

The brand of the seal was the Timken 710356 Seal from amazon. Are there brands of seals that I should stay away from? This seal had a heart symbol on RockAuto.com which is why I bought it.

"Crankshaft pulleys usually go bad when the rubber area disintegrates allowing the outer ring to slip."

So the chances of the pulleys shaft being worn out of spec is unlikely the culprit? The pulley does have 156k miles on it, if this means anything.

CS_AR

If I can find it, I'll snap a pick of a pulley with about ~250,000 miles on it when I get home to see if there are any marks as it and the seal needed to be replaced when I removed it.

I use a brand of main seal named National. These seals are made by the company that owns the FelPro gaskets. Yea they cost a little more but I haven't had one fail yet. Others may have had different experiences.

http://aftermarket.federalmogul.com/...2#.VRGiRfnF-qI

Here's a picture of the CKPS area (abeit dirty from use) that is dry as a bone with the National seal.

MaxiNoob98

Okay. I guess I'll try again with a National seal from Oreilly's.

Here's a pic of my pulley shaft. To show what I'm concern about.

CS_AR

I'll compare it to mine when I get home tonight.

CS_AR

Here's the one I have with approximately 250,000 before it separated below. It shows more signs of wear than yours.

asand1

iTrader: (1)

Could it be the upper oil pan half moon?

Sent from my XT1060 using Maxima

MaxiNoob98

No, I replaced it when I torn into the front/rear TC to replace the two little o-rings. Plus I have UV dye mixed with the engine oil.

CS_AR, I think it could be just the crankshaft seal. The national one looks way different, better design, than the Timken one. The Timken one has a metal outer ring that slides into the TC, but the National one has what seems like hard plastic/rubber outer ring, plus it looks like it has more rubber for sealing against the pulley shaft too.