popping out of 5th gear

[Jonny TVR]

a couple of times this weekend it has popped out of 5th gear on the motorway....any ideas??

[JulianR]

BW gearboxes can drop a circlip allowing the gear cluster to move - this results in losing fifth. Happened to my first Cerbie during running in, just jumped out while poodling along. However I think it is usually a permanent loss i.e. it doesn't move back (but I may be wrong) so not sure if yours can be the same problem.......

[WilliamBall]

Julian
is that you? I didn't know you inhabited these hallowed pages. Welcome.

You'll have to tell folks about your much modified Cerb. There's been a few posts recently about 4.2 poke vs 4.5, and the benefits of the RR conversion. I beleive you are the very man to enlighten everyone!

WB

[Chris]

Julian - are you the same person who wrote that great article in Sprint comparing your old 4.2 to your new 4.5? If so, I very much enjoyed it, and am looking forward to the update mentioned in the first article! Is that coming out soon?

[james]

JulianR said: BW gearboxes can drop a circlip allowing the gear cluster to move - this results in losing fifth. Happened to my first Cerbie during running in, just jumped out while poodling along. However I think it is usually a permanent loss i.e. it doesn't move back (but I may be wrong) so not sure if yours can be the same problem.......

If it's popping out of a gear, it's because of wear in the selector mechanism. There's a detent that should hold the selector in position, but if the spring weakens, you get the popping out of gear thing.

Do you find that it happens most under load, or on the over run (or both). It isn't a hard thing to get fixed, and doesn't require a new gearbox/rebuild. Just an overhaul of the selector.

James

[jak]

Is that a local dealer job - or gearbox out and back to the factory?

[james]

Local dealer should be able to do it. It's a common gearbox, so even if they can't fix the selector themselves, they should know of somebody locally who can.