wishfull thinking?

[mtlman8]

well, after getting the car to run and idle after 26 years.(wooo!hoOO!) I attached a vaccum gage to the intake only to find it very erratic:{ sticking valves right? so pull the head,valves,guides machineing ect...i'm not lazy,I swear, but is there any remody other tha pulling the head???

 

[poolboy]

I was able to clear up a sticky valve with 2000 miles of spirited driving and the addition of detergents to Shell gasoline.
I used common fuel system cleaners as "detergents"; the kind you'd find at Walmart.

 

[mtlman8]

THANK YOU!!! I was expecting "fairy dust" or "just pull the head, lazy" but I will try detergents.

 

[tdskip]

Worth a shot for sure

 

[mtlman8]

I also heard spraying a little water into the carbs (while reving the engine)will create steam that helps also???

 

[RonMacPherson]

Marvel mystery oil..

Either dump a can in a tank full of gas and drive like you stole it, through two tank fulls, or remove the air cleaner and siphon the MMO through the air intakes at a fast idle. Then shut the car off and let it sit when the MMO is ingested overnight...

I myself enjoy the driving aspect more.

 

[Mickey Richaud]

+1 on the Marvel stuff.

 

[Geo Hahn]

I have seen (but not personally attempted) a professional mechanic who would strike the offending valve with a hammer whilst the engine was running. Had to choose the right moment I suppose.

YMMV, use at your own risk, professional driver on closed course, etc.

 

[Member 10617]

I saw a professional mechanic stike an offending valve with a hammer, but he determined that the problem was serious and that the car needed a valve job.

 

[alfa33047]

John, With the motor off, remove your valve cover, spray WD-40 onto the valve stems, shooting the WD-40 straw between the springs and spray on the valve stem. Bump your starter to rotate the motor, watch for any valve springs that seem to be lazy or stuck. If you do find a stuck valve (with the motor off) tap the stuck valve with a hammer until it return to the up position. You will find an excessive amount of valve clearence. While your valve cover is off, check your valve clearences (.012) intake and exhaust. Good Luck, Bill C. Mesa, Az.

 

[poolboy]

Maybe I didn't have a stuck valve then with all the talk about hitting the valve with a hammer. Mine moved, it just wasn't closing due to carbon. With the valve partially open when it should be closed, the Vacuum Gauge was pretty jumpy similar to what you see in Scenario 5
https://www.secondchancegarage.com/public/186.cfm