Valve guide seals are OK on some INTAKE valves. As a rule I do not use them on exhaust guides of most air cooled engines. Ron Bishop wrote:
I used to build Volvo pushrod engines and could buy bronze guides for them.Of course it was a cast iron head.I was wondering if maybe they might be available for Guzzis. I put 'Raymond' seals on them also.They would never wearout or seize. Just a thought,? ----- Original Message ----- From: "Ian Adkins" <ianad-@linkamerica.net> To: "Loopframe" <Loopfram-@topica.com> Sent: Sunday, March 21, 2004 6:16 AM Subject: Ambo/Eldo head compatibility
Hey All,
Was wondering if I could bolt on my Eldo heads from my Police project
while
I repair the head from the Ambo?
Intake valve was indeed bent. Needed to hammer the thing out. From the
looks
of it the valve could have fused to the guide (since there was some brass tightly fixed to the valve stem) and that is what kept it open...allowing the piston to hit the valve and bend it. Not sure if this is the case because the valve was closed when I pulled the head.
I'm still not sure which was first to go. The push rod bending causing the valve to bend (see previous email explaining my theory) or vice versa. A
bit
of a mystery. Possible there was a lack of flow of oil to the top end too but there was lots of oil up top when I initially pulled the rocker
covers.
Not sure whether to look for something else. At any rate I am happy in
some
ways because I think the damage could have been considerably worse.