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#1
08-17-2025, 05:25 PM
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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.
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#2
08-17-2025, 06:25 PM
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Step one: Remove the cam.
__________________
"At no time did we exceed 175 mph.” Dan Gurney's truthful response to his and Brock Yate's winning of the first ever Cannonball Baker Sea-to-Shining Sea... Still have my 1st Firebird 7th Firebird 57 Starchief |
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#3
08-17-2025, 08:15 PM
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VINTON SEALS ARE IMO A MUST.
The intake valves are all that's needed, but some do both.
__________________
When I die, I want to go peacefully like my grandfather did, in his sleep. Not screaming like the passengers in his car. 
Last edited by Jeff Hamlin; 01-03-2026 at 05:20 PM. |
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#4
08-17-2025, 08:16 PM
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If you're going deeper than just seals, do your homework on the valve specs.
__________________
When I die, I want to go peacefully like my grandfather did, in his sleep. Not screaming like the passengers in his car.
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#5
08-17-2025, 08:18 PM
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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!
__________________
"At no time did we exceed 175 mph.” Dan Gurney's truthful response to his and Brock Yate's winning of the first ever Cannonball Baker Sea-to-Shining Sea... Still have my 1st Firebird 7th Firebird 57 Starchief |
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#6
08-17-2025, 09:46 PM
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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
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#7
06-08-2026, 01:50 PM
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sloppy valve guides will also create this cold start smoke
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Everything comes and goes Pleasure moves on too early And trouble leaves too slow |
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