Sticking Valves
#1
Sticking Valves
I have a 327 sbc that seems to have some sticking valves from setting for over a year. Is there some method of unsticking the valves without removing the heads. I was told that if you put a quart of transmission fluid in with the engine oil and let it run it might unstick them. This engine is in a 64 Impala ss that I'm redoing. Any help will be appreciated. Larry
#2
I have a 327 sbc that seems to have some sticking valves from setting for over a year. Is there some method of unsticking the valves without removing the heads. I was told that if you put a quart of transmission fluid in with the engine oil and let it run it might unstick them. This engine is in a 64 Impala ss that I'm redoing. Any help will be appreciated. Larry
#6
#7
It is missing on a couple cylinders, haven't figure which ones for sure. Also seems to have a little tappet noise on the right side. Also firing thru the carb when accelerating. Probably going to pull the valve cover and see what is happening. Not sure anything will free them up but worth a try. Thanks for all the info. Larry
#9
#10
I have had great luck with straight atf for freeing stuck rings. I would try that and something like Kleenflo Combustion chamber cleaner down the carb. A flat cam on a Chevy, that never happens.
Last edited by olds 307 and 403; November 23rd, 2015 at 03:52 PM.
#11
Larry,
64 Impala SS nice car...
Things to check:
1. Distributor cap for carbon tracking,
2. Broken rocker arm,
3. Bent pushrod,
4. Collapsed valve spring,
6. Collapsed lifter,
5. Camshaft lobe(s) worn flat.
Good luck and please post the solution.
64 Impala SS nice car...
Things to check:
1. Distributor cap for carbon tracking,
2. Broken rocker arm,
3. Bent pushrod,
4. Collapsed valve spring,
6. Collapsed lifter,
5. Camshaft lobe(s) worn flat.
Good luck and please post the solution.
#12
Looks like the lobes on the cam for the number 1 and 2 cylinder exhaust valves are wore down. The rockers are barely moving on these 2 valves. Tried tightening them but to no avail. Anybody got a mild cam for a 327 chevy( I'm serious). Thanks all for the help.
#14
It is almost certain the cam is the problem; but, you may want to check for bent pushrods and/or broken rocker arms first since they have to come off anyway. If it is a rocker arm, it is usually the exhaust rockers that fail. They tear open at the bottom, inspect them for wear if you replace the camshaft.
Good luck!!!
Good luck!!!
#15
It is almost certain the cam is the problem; but, you may want to check for bent pushrods and/or broken rocker arms first since they have to come off anyway. If it is a rocker arm, it is usually the exhaust rockers that fail. They tear open at the bottom, inspect them for wear if you replace the camshaft.
Good luck!!!
Good luck!!!
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