About 7000mi on 383, issues.
06-13-2007, 04:29 PM
#1
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Join Date: Apr 2006
Location: Rhinelander, WI
Posts: 112
About 7000mi on 383, issues.
Well my engine is smoking every once in awhile at startup so I ordered up some new viton valve seals, but I decided to take a look under the valve cover today even though they're not here yet. The first issue I noticed is my guideplates are wearing just like everyone elses (the GMMP ones) and that is causing my rockers to **** more and more off center. Are there better guideplates out there for my setup? My pushrods arent bent or anything, so I'm guessing these guideplates are a little soft.
The second issue I noticed is my oil drainback holes are being mostly blocked by my head gaskets. Anyone else have this issue?
The second issue I noticed is my oil drainback holes are being mostly blocked by my head gaskets. Anyone else have this issue?
06-13-2007, 06:05 PM
#2
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Join Date: Apr 2004
Posts: 108
Your guideplates are not hardened. I wrestled this for a while.
I finally bought a set from gmpartsdirect.com, which were hardened,
and no more wear (pn 140110510)
. Using a small file you will be
able to tell if they are soft or hard.
I finally bought a set from gmpartsdirect.com, which were hardened,
and no more wear (pn 140110510)
. Using a small file you will beable to tell if they are soft or hard.
06-15-2007, 09:00 AM
#5
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Join Date: Oct 2006
Location: Rochester Hills, MI
Posts: 746
I used Trickflow TFS 30400623-8.
Fit is fine, they are hard, but no miles yet. Non-adjustable so easier than the Iskys.
http://store.summitracing.com/partde...4&autoview=sku
Fit is fine, they are hard, but no miles yet. Non-adjustable so easier than the Iskys.
http://store.summitracing.com/partde...4&autoview=sku
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