The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Changing valve seals using air chuck: If I have air leaks are the heads toast?

Sport/Truck · 02-18-2007, 05:07 PM

A friend and I just started this yesterday. (see my post in the engine & trans)
Mine leaked some around the rings and at first it my exhaust valve was leaking. But using a small non-metallic hammer just give it a smack it will “pop” with the air in the cylinder. Mine sealed when I did it, but it clearly was leaking around the rings.
Hope this helps.
s/t

02-18-2007, 05:07 PM	#3
Sport/Truck Sierra Grande Club Join Date: Jan 2007 Location: New Mexico USA Posts: 2,433	Re: Changing valve seals using air chuck: If I have air leaks are the heads toast? A friend and I just started this yesterday. (see my post in the engine & trans) Mine leaked some around the rings and at first it my exhaust valve was leaking. But using a small non-metallic hammer just give it a smack it will “pop” with the air in the cylinder. Mine sealed when I did it, but it clearly was leaking around the rings. Hope this helps. s/t __________________ 1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe.