Re: Smokin' H_I agree

Posted by Janicholson on December 18, 2005 at 06:47:31 from (66.173.50.118):

In Reply to: Smokin' H posted by Eric Allen on December 17, 2005 at 23:46:40:

The only thing to add is an additional test for valve guide wear. (and a cheap fix)
If the engine smokes most after idling for a while, or after going down a hill in 5th with the throttle closed, then cleans up pretty much when being worked some, then guides may be the issue.
High vacuum causes more oil to be drawn in past the loose guides.
If this is the case, putting on Perfect circle valve seals (or even just umbrella seals) does not require removing the head.

Tips
Remove rocker shaft, leave pushrods in.
Work on one cyl at a time.
Put piston on TDC and lock engine in that position by putting in 5th and locking brakes. (keeps valves from falling into the cylinder if pressure is lost)
Use a 3/4" deep socket and plastic hammer to rap the keeper downward on each valve to break them loose.
Put shop air pressure in the cylinder through an old spark plug brazed to an air fitting. (keeps valves closed with retainers off)
Use a tierod "pickle fork" and a piece of 5/16 chain to make a spring compressor to remove the keepers. Bolt the chain to holes used for rocker shaft. Don't use the rocker shaft bolts.
Install the seals, and reassemble.
The process takes as much time to organize as it does to do.
JimN

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