Quote:
Originally Posted by ozkiwi
Stuck a new set of plugs in when I first noticed it and they all looked the same which is center electrode perfect tan color with a bit of black carbon on the rim so cannot detect what cylinder it is.
I guess I will just leave it as seems like I am just being 2 picky.
Still like to know if the valves are held up at TDC on vortec heads if anyone knows?
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If you are asking if the piston at TDC will hold up the valves enough to allow you to change the stem seals, the answer is No...
Buy yourself a tool that uses compressed air to pressurize the cylinder...something like a Lisle Valve Holders 19700
remove the rocker covers, rockers and pushrods....
remove the spark plugs and screw in the tool into each spark plug hole to pressurize the cylinder...
Use an angled tool to depress the retainer on each valve spring and remove the keepers...like a Summit Racing® Valve Spring Compressors SUM-906784
remove the retainer and spring.
remove the old seal
If you see any oil /air mix leaking up the valve stem...you should remove the heads and have the guides serviced.
if no seepage
and replace with new seals and re-assemble...
Ex Sydneyite here, now living in Cherryville NC USA
