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Thread: Poll: Has your SPI dropped a valve seat? Reply to Thread
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Topic Review (Newest First)
12-25-2014 04:05 PM
cgk60 Dropped at 138,000
03-24-2014 09:44 PM
Wulff45 143K. I just swapped a new head on, due to a valve seat loose enough to keep the valve from closing part of the time. Had a shiny mark around the edge of the valve relief in the piston, where the valve/seat was making slight contact, and the seat is visibly cracked at the point it is closest to the exhaust valve.

No, it didn't drop a seat, but it was about to do so.

I purchased a new head casting from J&C Enterprises, ( http://www.ebay.com/itm/350998600428...84.m1423.l2649 ) extremely pleased with it. Highly recommended.
03-11-2014 11:14 PM
shjeeper I replaced the head with one from headsonly.com at about 110k miles as preventative maintance. It cost ~$1000 altogether since I replaced quite a few other things while I was at it, but well worth it in the end. I especially like the fact that I no longer worry about when the valve seat will drop!

It's been running for 15k miles or so now. :)
03-08-2014 06:46 PM
Dmperfection My '02 dropped #4 intake at 170k miles. Yes, I was a skeptic and believed that only those engines that weren't well taken care of were susceptible. I always ran clean synthetic oil, cooling system flush every year and kept up with t-stat replacements. I was wrong. Ironically, three months ago, I seriously considered pulling out the head in a preventative effort. I was skeptical and decided against it. One week ago, it happened to me. Now I'm tearing it apart.
02-18-2014 04:28 PM
Martyman 2001 SPI with 118000 and cyl 4 dropped 2 weeks ago.
02-18-2014 03:34 PM
cameron 55 2 valves dropped around 99,000 miles so I rebuilt the cylinder head
10-03-2013 01:43 PM
Texas Ranger 114xxx and no dropped valve seat, though I have heard a lot about em'
08-26-2013 01:21 AM
WrenchTurnerDave
Quote:
Originally Posted by Pegasus8891 View Post
Dropped at 117k
wow, we're always going to be dealing with this
08-25-2013 02:07 PM
Pegasus8891 Dropped at 117k
07-30-2013 01:32 PM
fordmaster302 Mine is currently at 245,000 miles engine is still all original
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