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Crank Seal or Cam Seal Leak?

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googoogjoob

Probationary Member
20
0
Oct 19, 2010
Hutch, Kansas
So I have an oil leak on the passenger side of my 420a. At first I thought it was the oil pan gasket but saw oil above that so I took everything apart. One of my cam seals is bad I know, the lip on it is broken so the spring isn't holding the seal on right. I'm going to replace that. But I can't tell if my crank seal might be busted too. Any clear signs it might be? There's oil at the bottom of the timing belt cover but that could just be from the cam seal leak. Any help would be appreciated. Especially pics of a cam seal leak vs crank seal leak.
Thanks
 
With an oil leak like this, I buy UV dye and put a bit of it in the oil, run the car for a bit and then hit the area with a black light.
 
I would definitely start with replacing both cam seals. The parts are cheap and the effects of a leaking cam seal can be very expensive. If either the cam or crank seals are shot and the timing belt is exposed to oil, it can cause the belt to fail prematurely. How far do you have the crankshaft area removed? It might be worthwhile to pull the crankshaft gear off so that you can see the crankshaft seal.
 
Sorry it took so long to reply but it seems it was just the cam seal that was leaking. I changed it pretty easily and no more oil leak. I'll definitely try that dye if I come up with another oil leak I can't find. Thanks for the replies
 
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