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#1
06-05-2003, 08:21 PM
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In my engine, (one I just purchased) found during a dismantle last month. Most of the large pieces were found in the heads and valve springs. Most of the smaller pieces on the oil pump screen, at least the pump works. Metal and rubber(hard). Three guesses anyone? Anyone have an idea what would've caused this failure and how to prevent?
90% done on the rebuild and all is looking good. Sorry about the crappy PC cam pic. That's a quarter and a dime for size reference....psst I know what they are, but I thought a post like this may help others..... |
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#2
06-05-2003, 08:21 PM
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In my engine, (one I just purchased) found during a dismantle last month. Most of the large pieces were found in the heads and valve springs. Most of the smaller pieces on the oil pump screen, at least the pump works. Metal and rubber(hard). Three guesses anyone? Anyone have an idea what would've caused this failure and how to prevent?
90% done on the rebuild and all is looking good. Sorry about the crappy PC cam pic. That's a quarter and a dime for size reference....psst I know what they are, but I thought a post like this may help others..... |
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#3
06-05-2003, 08:25 PM
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Oil deflectors off the springs maby??
cant tell with the pics Mike |
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#4
06-06-2003, 02:01 AM
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Hard to tell by the pic but might these pieces be what's left of a few positive valve stem seals?
Hope this helps, Lloyd '72 Formula 455 - TH400, A/C, Y99 suspension, tach & gauges, AM-FM stereo, 8-track, Formula steering wheel, etc.; Lucerne Blue with Medium Blue deluxe Interior Someday I'll be restoring a '72 GTO 455HO, TH400, A/C, etc.; Sundance Orange with Parchment buckets
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Regards, "455HO" Lloyd 2008 GMC Sierra Denali 2WD Crew, L92 6L80E, Silver w/ Ebony guts, 14.26 @ 98 
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#5
06-06-2003, 05:43 AM
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__________________
 frittering and wasting the hours in an off hand way.... 1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core. 
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#6
06-06-2003, 05:53 AM
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Look like the pieces from valve seals to me too. I had some extra ones out in the tool box and went to take a look. Pretty positive (hehe) that is what they are.
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#7
06-08-2003, 07:40 PM
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Those are definately PC seal remains.
Most valve guides need to be machined lower to keep the retainers from hitting the guides/seals when using a higher lift cam. johnta1 Pontiac Power RULES !!! www.wallaceracing.com 
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#8
06-09-2003, 08:45 AM
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You are correct.....and what a mess....
There wasn't a single one left in position or in any kind of decent shape. I wasn't worried about finding that garbage as I was on a rebuild mission anyway. As far as high lift cam...never heard this run prior to purchase, but I doubt cam was cause. This was a 2bbl, no go smogger, 1975/76 6x head motor. The cam wasn't wiped out, but did show its age. Most everything else is is pretty good shape and required very little work. I doubt this engine ever saw any hi-po stress, just bad gas and trying to cope with the smog/choking aspect of that era. Alot of buildup on the back of the intake valves, I have no doubt proformance was at an all time low during it's former running days. |
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