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#1 |
Registered Member
Join Date: Jun 2000
Location: Sechelt, B.C., Canada
Posts: 200
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![]() Hey guys ..
I've been working in my winter ride a little too much ![]() ![]() Anyways...winter beater is a 96'Chevy 4X4 with a 350ci Vortec (L31 Heads) I know should have bought a ford... ![]() Hears the deal I went a long trip (1500kms round trip) halfway it starts to tick, like a top-end tick. I parked it for the night ,went out in the am and no tick....no such luck once it warmed up it starts to tick but only at an Idle rev it up a bit and it seems to get quiet and disappear(sp) and when your driving and let off the gas on the hwy it ticks... after getting home it developes a miss at all operating rpms and it also backfires through the exhaust... So like a smart guy I go and tear the heads off thinking thats the problem ...a couple of guys tell me I probally have a stuck valve or a broken spring or a collapsted lifter or bent pushrod or a burnt valve. I've got the heads all apart (first time for a big job like this) I haven't found anything bent or broken or clogged (pushrod).. I did find one intake valve (#2) that has some nicks around the edge of the valve at the stem end where the rocker hit it ,...the rocker is fine no scoring or discoloration.Some of the valves have a lot of carbon on them like 1/16+ of an inch (3mm)...,same with the heads .... Would the nicks on the stem make it tick??? and would the carbon make the valves not seat?Creating a miss? WHAT SHOULD I DO NOW ..... ![]() Thanks Guys Big Bopper.. P.S. I'll try to get some pics of the Bad valve so you guys can see if its the ticking problem...
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90' GT Drop-top, 88' 302,pulleys,full flowmasters (turndowns),Ported stock Intakes,twin flex-a-lites,Pro-5.0,3.55's,short belt,elctric water pump,timing bumped,taylor leads.(headers soon!) |
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