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| | | | Joined: Oct 2005 Posts: 25 New Guy | | New Guy Joined: Oct 2005 Posts: 25 |
Im sure this has been posted at one time but its just too slick not to pass on to someone else.
If youve got an old over head -valve engine thats been sitting a while, which turns over but has stuck valves this may save you some time and money.
Instead of pulling the cylinder head to free a stuck valve(s), remove the rocker arms and then take a rubber mallet and gently tap-open the stuck valve - but not too far, then rotate the engine so that the piston with the stuck valve is downward about half way, then stuff as much rope as you can through the sparkplug hole (the bigger the rope, the better) and then rotate the engine so that the piston contacts the rope that youve stuffed in the sparkplug hole and closes the valve. You can WD-40 and keep repeating the process until the valve moves freely.
Be sure not to tap open the offending valve so much that the rope can get between the valve and head.
What the heck?
Worth a try and works sometimes if the valves arent too rusted.
Keep'em Rolling!
| | | | | Joined: Oct 2008 Posts: 321 'Bolter | | 'Bolter Joined: Oct 2008 Posts: 321 | It does work, the idea being the rope is soft enough to put pressure on the valve without damaging it. The key is lubrication. Use a good penetrating oil. I don't use WD-40 for jack, it's not that good, there is much better stuff available if you just open your wallet a little further.
Edit for spelling and grammar.
Last edited by Bears63; 07/02/2011 4:24 AM.
1963 Chevy C20 Longbed Stepside
1978 Chevy K30 Custom Deluxe
| | | | | Joined: Feb 2004 Posts: 29,803 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,803 | Yep, use Kroil, and you probably won't need the rope!
Jerry
"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: Dec 2008 Posts: 319 Shop Shark | | Shop Shark Joined: Dec 2008 Posts: 319 | Rope also works to hold the valves shut to change/install springs, without removing the head.
If you can't fix it with a hammer and screwdriver, you need a bigger hammer.1965 Chevy C10 | | |
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