PY Online Forums - Bringing the Pontiac Hobby Together

PY Online Forums - Bringing the Pontiac Hobby Together (https://forums.maxperformanceinc.com/forums/index.php)
-   OHC-6 TECH (https://forums.maxperformanceinc.com/forums/forumdisplay.php?f=496)
-   -   OHC-6 Valve seals (https://forums.maxperformanceinc.com/forums/showthread.php?t=881684)

jhhagop 08-17-2025 05:25 PM

OHC-6 Valve seals
 
Has anyone replaced valve seals on on this engine. Need advice on where to get the seals and how to install them. I was a auto tech from 1968 to 2016 and never worked on this type of engine. its probably no different than a overhead valve engine so advice would help.

694.1 08-17-2025 06:25 PM

Step one: Remove the cam. :cool:

Jeff Hamlin 08-17-2025 08:15 PM

VINTON SEALS ARE IMO A MUST.
The intake valves are all that's needed, but some do both.

Jeff Hamlin 08-17-2025 08:16 PM

If you're going deeper than just seals, do your homework on the valve specs.

694.1 08-17-2025 08:18 PM

Actually, you can slip the belt off of the cam pulley & unbolt the cam without too much commotion. Then valve seals would be pretty much the same as any other OHV. You will need a new cam tower gasket & then cam timing is critical, of course. Just make sure that you index the crank ahead of time & get the cam & dist drive where they belong. For me, the hard part would be doing the seals!

jhhagop 08-17-2025 09:46 PM

Thank you all for your advice the factory manual doesn’t show any of what you all suggested it seems like more work than I expected seems like at my age of 77 the whole days work if I’m lucky. The cars smoke a lot when first started then seems to get better as you drive typically valve seals act that way again thank you all

Cammer-6 06-08-2026 01:50 PM

sloppy valve guides will also create this cold start smoke


All times are GMT -4. The time now is 11:11 PM.