Like Jack Wheeler said, we had this problem very badly in the TR3. more
serviceable gear was the solution.
gets old trying to drive corners with one hand on the wheel and one on holding
the gearshift in.
mike
Jack Wheeler wrote:
> ------ =_NextPart_000_01BFAAD1.060D87A0
>
> Jack - sometimes the little teeth on the gear (that the synchronizer ring
> captures when you shift gears) get worn so that they are 'rounded off' on
> top. When this happens, it allows the synchronizer ring to slip off the
> teeth, especially under deceleration. Check these teeth carefully, and if
> they are worn, replace the gear. I probably have some serviceable 3rd
> gears if you need one.
>
> -----Original Message-----
> From: Jack W. Drews [SMTP:vinttr4@geneseo.net]
> Sent: Thursday, April 20, 2000 10:42 AM
> To: fot@autox.team.net
> Subject: third gear pop-out
>
> Tr4 vintage racer slips out of third gear.
>
> Here's what I've checked so far:
>
> 1. Mainshaft bushings replaced recently, no apparent slop
> 2. Endplay on mainshaft bushings / gears to spec
> 3. Endplay on layshaft to spec (although I don't think this is
> pertinent)
> 4. No apparent slop in the input or center bearings, no discernable
> sideways movement in the mainshaft / input shaft
> 5. pull-out force required on shifter rod is 28 lbs vs. factory spec of
> 32.
> 6. Shifter forks measure .276 thickness, thicker than all of the junk
> trans I've checked
> 7. The sheet metal shift lever cap opening is not preventing full travel
> of the shift lever
>
> My first inclination is to augment the detent spring as advised by Paul
> last year, even though it is not easy to do since I'm using a very late
> model gearbox top that has drive-in detent hole plugs rather than the
> screw-in plugs.
>
> I'd appreciate any good advice you can give me
>
> Thanks in advance
>
> --
>
> TR6 -- 29 and still running
> TR4 -- 39 and still racing
> uncle jack -- 59+ and still_________(fill in blank)
>
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> ------ =_NextPart_000_01BFAAD1.060D87A0--
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