Statistics: Posted by Amb3611 — Sat Jan 20, 2024 3:53 pm
Statistics: Posted by SPRIDDLER — Sat Jan 20, 2024 11:59 am
Statistics: Posted by Amb3611 — Fri Jan 19, 2024 2:15 pm
Statistics: Posted by SPRIDDLER — Thu Jan 18, 2024 5:37 pm
Statistics: Posted by SPRIDDLER — Wed Jan 17, 2024 10:41 pm
I'll take a wild 'off the wall' guess at the problem and say that in view of the several issues you've had with it who knows what has happened before you got it. It could have the wrong zorst valve which has a stem that is too short. The top of the valve stem looks as though it has been hammered by the lever, perhaps because with a too short valve stem the pushrod couldn't be adjusted/extended enough to obtain the correct minimal gap which would also account for the damage on the nose of the lever. The lifter may not work because the too short valve stem means that the lever doesn't sit high enough for the valve lifter to make contact with it in order to push the valve open.Hi all, I have after a few years without a bike decided to take the plunge and get myself a small project. I have a 350 model8 1960. It has already had some “playing with” so I’m not surprised may have a few issues.
Statistics: Posted by SPRIDDLER — Wed Jan 17, 2024 10:34 pm
I'll take a wild 'off the wall' guess at the problem and say that in view of the several issues you've had with it who knows what has happened before you got it. It could have the wrong zorst valve which has a stem that is too short. The top of the valve stem looks as though it has been hammered by the lever, perhaps because with a too short valve stem the pushrod couldn't be adjusted/extended enough to obtain the correct minimal gap which would also account for the damage on the nose of the lever. The lifter may not work because the too short valve stem means that the lever doesn't sit high enough for the valve lifter to make contact with it in order to push the valve open.Hi all, I have after a few years without a bike decided to take the plunge and get myself a small project. I have a 350 model8 1960. It has already had some “playing with” so I’m not surprised may have a few issues.
Statistics: Posted by SPRIDDLER — Wed Jan 17, 2024 7:41 pm
Statistics: Posted by vigo — Wed Jan 17, 2024 12:20 pm
Statistics: Posted by g80csp11 — Tue Jan 16, 2024 9:36 pm
There isn't a seal as a component but relies upon a close fit 'twixt valve stem and guide, and obviously between the valve head and its seat. Possibly a bent valve stem or build-up of carbon on the head end of the stem making it stick and/or preventing full valve closure.Could the carbon build up be due to worn valve seal or is it more likely a valve stem issue?
Yes, and possibly the valve guide.also I take it I will need to replace both the exhaust valve and the rocker arm
AMC Classic list pre-loved ones on page 5 in the link below.Although I am struggling to find a replacement arm?
Statistics: Posted by SPRIDDLER — Tue Jan 16, 2024 6:05 pm