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Fixing the old truck

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#608507 01/09/2010 5:41 PM
Joined: Oct 2007
Posts: 45
J
'Bolter
'Bolter
J Offline
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
W
Riding in the Passing Lane
Riding in the Passing Lane
W Offline
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 Super
In the Gallery Forum
Joined: Jan 2008
Posts: 4,903
C
'Bolter
'Bolter
C Offline
Joined: Jan 2008
Posts: 4,903
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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