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The Terminator
Engine/Tuning
Help with timing engine!
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<blockquote data-quote="01blckcobra" data-source="post: 16311817" data-attributes="member: 92039"><p>Usually 8% max is what i shoot for. 15% is ok-ish. 20% is high. Could be crappy seat job... and/or Valves need to be lapped or debris stuck in there. or you bent some valves. IMO </p><p></p><p>My experience has been, usually "JoeSchmoe" machine shops just throws the new seat in there and the valve is without actually checking the mating surfaces. Usually old tooling is used also.</p><p></p><p>Pull the head and springs. check the seats and valves. If everything checks out, get some lapping compound and lap the valves. Then re-check. AutoZone / ect.. usually carries the compound and tool.</p></blockquote><p></p>
[QUOTE="01blckcobra, post: 16311817, member: 92039"] Usually 8% max is what i shoot for. 15% is ok-ish. 20% is high. Could be crappy seat job... and/or Valves need to be lapped or debris stuck in there. or you bent some valves. IMO My experience has been, usually "JoeSchmoe" machine shops just throws the new seat in there and the valve is without actually checking the mating surfaces. Usually old tooling is used also. Pull the head and springs. check the seats and valves. If everything checks out, get some lapping compound and lap the valves. Then re-check. AutoZone / ect.. usually carries the compound and tool. [/QUOTE]
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Help with timing engine!
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