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How easy is it to bugger a valve?
- ebouwman
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So my question is... how likely is it that I've bent a valve?
I don't really want to pull the head just to inspect the valves, so I'm curious if anyone has any experience with bending valves. I don't have the cams back in so i haven't done any sort of compression test as of yet, just looking for advice.
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- wireman
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- The most interesting prick in the world
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If both cams are out you could blow some compressed air down each splug plug hole and listen for it coming out intake or exhaust.
If you dinged it really good you might notice difference in bucket height in the bore
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.
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- Motor Head
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- FIX UP YOUR BIKE RIGHT AND CHEAP
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1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- Motor Head
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- FIX UP YOUR BIKE RIGHT AND CHEAP
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EDIT: Wiremans quicker.
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- Mcdroid
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- Gone Kwackers
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Michael
Victoria, Texas
1982 GPz750
1977 KZ1000A
1978 KZ1000A
1982 GPz1100
1975 Z2A
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- APE Jay
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- steell
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KD9JUR
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- ebouwman
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I don't have an air compressor at my place, but I'll see about that tool that goes into the spark plug to test compression and I'll check the clearance.
I was really hoping to not have to pull the head and swap out valves but I'll see...
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- ebouwman
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steell wrote: If you heard a clunk then you bent valves. It takes very little to bend them.
Ya I think you're right.
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- Roadflyer
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1979 kz1000 shaftie rebuild project
1045 wiseco 10.25-1 pistons
Kenny Harmon 380 lift cams
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- ebouwman
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@Roadflyer the cams were good in relation to eachother, just not in relation to the crank.
Never thought about it but can the piston top get damaged ever?
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- mick z1a
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