aasltmike
Active member
I'm gonna have to do a valve guide seals replacement soon, but I'm reading two different schools of thought in my research. One says that the valve guide seals are an integral part of the head itself and that the head must be removed and re-machined to fix it. I read that in a Chilton's online manual that I had access to through my account with the Army (which, BTW, I guess Chilton didn't like that and I can no longer access the Chilton's through my Army account...LOL). The second is that I can replace the valve guide seals while the head is still on the engine. I would just need an air compressor with the air fitting to thread into the spark plug hole in order to keep the valves up while the keepers are off.
Just a little history on my truck, since I know some may ask these questions. To my knowledge, no major engine work was ever done to my Ty by the previous owner (only one owner, she bought it brand new back in '92) so the OEM heads are still be on it. I get the puff of white smoke out the tailpipe when I start it up. My dad was a mechanic in the Army and after he retired from there, a mechanic for the US Post Office, so I'm pretty sure his diagnosis is spot-on. It runs great and no white smoke out the tailpipe after start-up. Depending on what is the real deal on having to replace the valve guide seals, I'm looking at buying s-clone's heads he has on his thread. If it's the first option, I need an immediate swap-out when I do it as this is my daily driver. I would have those heads re-machined and then swap them out with the heads on the engine now.
Just a little history on my truck, since I know some may ask these questions. To my knowledge, no major engine work was ever done to my Ty by the previous owner (only one owner, she bought it brand new back in '92) so the OEM heads are still be on it. I get the puff of white smoke out the tailpipe when I start it up. My dad was a mechanic in the Army and after he retired from there, a mechanic for the US Post Office, so I'm pretty sure his diagnosis is spot-on. It runs great and no white smoke out the tailpipe after start-up. Depending on what is the real deal on having to replace the valve guide seals, I'm looking at buying s-clone's heads he has on his thread. If it's the first option, I need an immediate swap-out when I do it as this is my daily driver. I would have those heads re-machined and then swap them out with the heads on the engine now.
