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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Oct 2007 Posts: 45 'Bolter | | 'Bolter Joined: Oct 2007 Posts: 45 | I received this tip on replacing valve stem seals from an aircraft mechanic. To replace the seals with the head on, remove the rocker arms and rotate the crankshaft to place the piston near top dead center and stuff the cylinder with 1/4" clothesline through the spark plug hole. I used a thin screwdriver to do this. Then, rotate the crankshaft to bring the piston towards TDC to compress the clothesline up against the valves. You can then use your valve spring compressor to compress the spring and remove it without fear of the valve dropping into the cylinder.
I replaced the intake valve seals on my '56 235 yesterday and this technique worked great.
Finally '54
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | sounds like a good idea. Ive always used compressed air. You can buy an adapter to screw in the pug hole with a quick coupler or you can make one out of an old spark plug & quick coupler nipple.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | I have crammed about a foot or so of nylon rope into the spark plug hole and turned the engine until it was in a bind. I do this so seldom that I can never find my adapter when I need it. | | |
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