 Dropped a valve seat...what's the verdict? |
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| billh1963 |
 Aug 15 2016, 04:29 PM
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Car Hoarder!  Group: Members Posts: 3,408 Joined: 28-March 11 From: North Carolina Member No.: 12,871 Region Association: South East States  |
Way back in August 2013 I went to start my 914 and heard a funky noise. I immediately shut it down. Using my limited mechanical knowledge (and a tremendous amount of luck) I postulated that I had dropped a valve seat.
Three years later I decide it's time to get this 914 back on the road. Pulled the heads and, sure enough, a dropped valve seat. Prior to the issue the car was running good...no smoking, seemingly good oil pressure, etc. I'm hoping I can get by with just rebuilding the head (if possible). Anyone see anything that would cause me to deviate from this plan of action?   |
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| HAM Inc |
Aug 15 2016, 06:43 PM
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Senior Member Group: Members Posts: 847 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None |
The seat drop repair alone is not so bad, as far as consequences to the casting's integrity. But the crack out the exhaust port is a real killer for the T4. It can be repaired, (done it countless times over the past 20 years) but the casting will never be the same.
Time to stick a fork in that one. BTW, those cracks were really common on smog heads. Is your head one of them? Just curious. |
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Posts in this topic
billh1963 Dropped a valve seat...what's the verdict? Aug 15 2016, 04:29 PM
Mike D. I did the same thing back in 2000. Had the head re... Aug 15 2016, 04:36 PM ConeDodger I see at least two and maybe three cracks in that ... Aug 15 2016, 04:46 PM
billh1963
I see at least two and maybe three cracks in that... Aug 15 2016, 04:54 PM
porschetub
I see at least two and maybe three cracks in that... Aug 15 2016, 05:05 PM porschetub Oh dear the head is scrap ,not worth the repair co... Aug 15 2016, 05:01 PM billh1963
Oh dear the head is scrap ,not worth the repair c... Aug 15 2016, 05:08 PM r_towle Depending upon your finances I would suggest you b... Aug 15 2016, 06:04 PM 76-914 Is that piston cracked above the indentation? Aug 15 2016, 06:13 PM billh1963
Is that piston cracked above the indentation?
I... Aug 15 2016, 06:27 PM billh1963
The seat drop repair alone is not so bad, as far ... Aug 15 2016, 06:45 PM ConeDodger
The seat drop repair alone is not so bad, as far ... Aug 15 2016, 07:47 PM HAM Inc
The seat drop repair alone is not so bad, as far... Aug 16 2016, 09:29 AM Philip W. Looks like you will be building that 2056 --- you ... Aug 15 2016, 08:08 PM Toast I've had a valve seat embedded in a head befor... Aug 15 2016, 11:40 PM cwpeden And don't use head gaskets. I used them for th... Aug 16 2016, 12:40 AM |
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