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| | | | Joined: Jan 2003 Posts: 64 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2003 Posts: 64 | Previous post about "No Spark" solved by new distributor parts. Got the old girl running for the first time since 1978. Runs fair, and has an occasionally sticking valve in the #4 hole. It sticks for two or three firing cycles and then is ok for 30 seconds and then does it again, and then may idle for five minutes before doing it again. Any good fixes? Is it likely to work itself out?
Opportunity is missed by most people because it is dressed in overalls
and looks like work. - Thomas Edison
1941 AL 3/4 ton 125-1/4 WB, bought by my Great Uncle Matt in 1942. Still in the family.
| | | | | Joined: Feb 2004 Posts: 29,841 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,841 | Pull the valve cover and squirt a liberal shot of Kroil penetrating oil on the offending valve guide. Let it sit overnight, then fire up the engine (valve cover still off) and soak it down again with the engine running. If a couple of treatments like that don't fix it, it's time to pull the head and get a valve job done. www.kanolabs.comJerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | If the truck sat with any gas in it all that time and you're pouring fresh gas in the tank to run the truck you're making the situation worse every time you run the engine. The fresh gas will dissolve some of the old varnished up gas which then will stick to the shafts of the intake valves. Consider yourself fortunate that you haven't stuck one or more fully shut & bent pushrods like I did. I had to pull the head and drive every intake valve out of the head mine were stuck so tight. All of that happened after just one time of getting the engine started and allowing it to run after sitting for 20 years.
Last edited by Tiny; 01/14/2011 3:48 PM.
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| | | | | Joined: Jan 2003 Posts: 64 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2003 Posts: 64 | Thanks, will try the Kroil, the tank had been drained according to the PO.
Opportunity is missed by most people because it is dressed in overalls
and looks like work. - Thomas Edison
1941 AL 3/4 ton 125-1/4 WB, bought by my Great Uncle Matt in 1942. Still in the family.
| | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I had a sticking valve on a freshly rebuilt head. The rebuilder didn't check for cracks and left worn guides in the head. The sticking was caused by antifreeze getting into the guide from a crack in the head. I doubt that yours has this problem.
It is quite a feeling to get one of these running after such a long time sitting, isn't it? | | |
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