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Valve tappet screw and nut coming loose
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RobG1970
Valve tappet screw and nut coming loose
Guys - My #1 exhaust cylinder valve tappet screw seems to keep coming loose, I heard a TAPPING sound and thought I better open her back up. I found the screw and nut all the way out and the second one the nut only. I was lucky that they didn’t go all the way down through the oil galley. I cleaned up the treads, and replaced them (cranked down on the locking nuts) and did a full adjustment on all the valves to make sure the others were all ok. Well I just started her up tonight and is sounds like the “tap” is coming back. Any thoughts>?? Maybe some medium lock, loctite<>>>???Tags: None
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7981GS
Replace the nut.
They get stress cracks underneath that are difficult to see unless they are under a load.
Not a bad idea to replace both parts.
Eric
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RobG1970
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Originally posted by RobG1970 View Postthanks Eric - I was thinking the same since its a 32 year old part that has been under load....1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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Originally posted by RobG1970 View Postyes Chef - its a its a 1980 GS750E 16 valve what would you want for them>???? Rob
I work offshore and will be gone for a week starting tomorrow evening.1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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RobG1970
Valve spring keeper came out....
so I got the adjusting screws and nuts in the mail and got all excited. SOOOO I pulled the valve cover off ONLY to find one of the valve spring retainer keepers came out on one of the exaust valves, I was able to recover them both... WTF >??? so now I am making a valve spring compressor and am going to try (with rope trick) to compress the springs and put the keepers back in place, and then replace the adajusting screw and nut, the check the lash on ALL the valves again.... Have you ever wondered if your bike just doesnt want to be riden anymore>?? little weird things like this keep happening RIGHT when I am about to put her back on the road....
Guys and Ladies, any thoughs on why the valve spring keeper would come out <>>????
Thanks,
RobLast edited by Guest; 06-24-2012, 01:23 PM.
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7981GS
I would buy a new set of keepers for the valve that lost it at the least.
Check the valve stem and retainer to see WHY it came out.
Eric
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