My Lemans ll is balky and misses shifts from 2nd to 3rd. There's also a helper spring on the shifter to help pull it back down. I bought some shims for the shift drum and also a shift return spring. Does someone hav experience with which way to shim the selector drum to remedy a poor upshift into 3rd gear? Any other tips? Thanks in advance!
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Shimming the selector drum...
- Thread starter Gordo
- Start date
look here https://www.guzzitech.com/GearboxClunk-Pete_R.html
and here https://www.guzzitech.com/Files/Gearboxshim.pdf
Pete is pretty good at it.
and here https://www.guzzitech.com/Files/Gearboxshim.pdf
Pete is pretty good at it.
Thanks again John! Is there an index of resources or "stickys" in the site that I haven't discovered? The trans never jumps out of 3rd gear, rather, it's the tough shift that has to be done carefully. So, I had the back cover off and considered doing all of what Pete Roper suggested but after a couple days staring at it I chickened out. But I changed the shift return spring and while examining the old one, it snapped! So that might just help! Maybe next winter. Cheers
Penis Rotor
GT Godfather!
Shimming the drum really isn't that hard. another thing that may cause baulky changes is if the rod the selector forks slide on gets bent. It's a substantial it of steel but long periods of hard shifting can bend it. The way to check is to take it and the forks out of the box and just slide 'em up and down on the rod. If there are tight spots? just fling the rod and get a new one, they aren't 'spensive, fifty bux or some such. Then shim the box so it doesn't try and fling itself out of gear when changing.
Pete
Pete