Thread: Burned Valves
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Old February 8th, 2022, 11:25 AM
CMCamp CMCamp is offline
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Join Date: Oct 2021
Location: Canandaigua, NY
Truck: 1962 K1001
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Default Re: Burned Valves

I bought this truck back in August and started a detailed restoration in October. It has under 15K miles on it, so I wasn't expecting major issues with the engine. What I was chasing was significant black smoke on startup. I thought it might be my getting use to the choke setting on startup, so I kept backing it off until it was very hard to start. Then I ran a compression test and found very low compression in cylinders 2 & 4 plus moderately low in 6. I decided to pull the heads. The first thing I saw was a very dirty intake manifold, lots of carbon buildup. The intake valve in cylinder 1 was damaged beyond repair. I decided to replace the intake valves in 2, 4 and 6. I worked with Jude of Obsolete Automotive Wholesale in VA. He was a tremendous help in identifying and supplying the correct valves. The heads are back on the engine now, but I haven't run a compression check yet; waiting on some other parts. I'll post an update when I have the new numbers. Should be later this week.
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