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Old 07-27-2010, 09:22 AM   #1
eppoh
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Member#: 199401
Join Date: Jan 2009
Vehicle:
2000 Legacy OB
95 Honda wagon 66 Belanca

Default Leaking Cam seal

With about 200 miles on the rebuilt heads, the front cam seal on the passenger side is leaking.

Any ideas what I could have done when installing the new seal that caused a leak. Will be replacing it soon and don't want to repeat the same mistake.

While I am on the subject, any advice on a procedure for pulling the seal without scratching the head or shaft?
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Old 07-27-2010, 09:38 PM   #2
Crashsector
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Green

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The seal gets driven in flush with the cam cap/head, not past.

I use sharp drywall screws to remove the old seals. Drive them in at opposite sides and pull. Works every time.

--Andy
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Old 07-28-2010, 08:52 AM   #3
eppoh
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95 Honda wagon 66 Belanca

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Quote:
Originally Posted by Crashsector View Post
The seal gets driven in flush with the cam cap/head, not past.

I use sharp drywall screws to remove the old seals. Drive them in at opposite sides and pull. Works every time.

--Andy
Is there anything to keep it from creeping in or out? Do you like to use three bond on it?
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Old 08-14-2010, 02:13 AM   #4
mazda02subaru
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Quote:
Is there anything to keep it from creeping in or out?
I would like to know as well.. Should anything be applied when replacing the seal?

I expect my cam seal is leaking- I can see oil under driver's side of timing belt cover.

I may do this next week while replacing timing belt, idlers, water pump with gates kit.

Thanks!
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Old 08-14-2010, 03:27 AM   #5
PhilSine
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Location: Superior, WI
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02 WRX Wagon (WRB)
98 OBS-T, 91 Legacy SS

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When replacing cam or crank seals, be sure to apply some sort of a lubricant to the inside surface of the seal that comes in contact with the cam or crank respectively. I've used old motor oil, new motor oil, and bearing grease on multiple occasions and have never had a new seal leak on me.

I believe in the felpro seals, there is even an instruction telling you to do this.
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Old 08-14-2010, 07:42 PM   #6
williaty
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99.9% of the time, they seal perfectly for me if I just wet the inside surface (that touches the cam) with oil. The really pain the in the ass ones won't seal unless you both wet the inside with oil and smear a tiiiiiiiiiny bit of Permatex Ultra Grey around the outside. I have a feeling that the reason a tiny portion of them leak is that the surface the outside of the seal touches (one side is the head, one side is the cam cap) isn't perfectly round or has some tiny imperfections.
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