Shimano Tyrnos 20 Problem

[sparksey]

I am just calling out to the brains trust for help. I have a Tyrnos 20 on my bench that the customer says is very stiff to wind. After quizzing him it appears that he has been increasing the preprogram dial whilst in gear fighting a fish to give him more drag. Why he didn't just go over the button is beyond me.

I have replaced the pinion gear, pinion bearing, lever shaft body and the bearings on the spool but the problem remains.  With the reel in gear, increasing the drag to about 4kg makes it very stiff to wind and more drag results in more stiffness. I guess my next option is to replace the spool shaft?

I have spent hours chasing this problem without success. Any help would be appreciated.

[ReelClean]

It sounds like a stuffed bearing, but I have had four TLDs over the bench for this sort of problem in the last few weeks, usually people operating the drag lever before the preset has engaged makes the spool shaft round out the LS body square hole has rounded out either totally or around inner surface of the plate.  Sounds like you've done the usual culprits, how is the fit of the LS body on the end of the shaft?  The shaft doesn't have a rounded over square on the outer extremity does it?  I "think" the failure mode is the shaft locking into the out of shape hole, hence no lateral movement/slip of the shaft, which then starts to tighten everything up against the bearing....if you can see what I mean?

[ReelClean]

It sounds like a stuffed bearing, but I have had four TLDs over the bench for this sort of problem in the last few weeks, usually people operating the drag lever before the preset has engaged makes the spool shaft rounds out the LS body square hole either totally or around inner surface of the plate.  Sounds like you've done the usual culprits, how is the fit of the LS body on the end of the shaft?  The shaft doesn't have a rounded over square on the outer extremity does it?  I "think" the failure mode is the shaft locking into the out of shape hole, hence no lateral movement/slip of the shaft, which then starts to tighten everything up against the bearing....if you can see what I mean?

[akfish]

Have you checked the left side spool bearing? This is occasionally the problem.