'55 307 Jumps out of 5th gear?

Question

Hi All, i have a '55 plate, manual 307 2.0 very low mileage (24k). Its decided to gently jump itself out of 5th gear, but only when cruising at around 65 mph. Just drops in to neutral, no noises, no difficulty finding any other gears at any times. It normally goes straight back in, in around

20 miles it might do it twice. However today it jumped straight back out. Signs it could be getting slowly worse. I am getting a Haines manual shortly to have a read up, but has anybody encountered this - or got some starting points for me please ? I'm relatively competent - and not looking forward to any large garage bills. Appreciate any pointers. Cheers, Alistair.

Chris · Accepted Answer

Fit new or recon box sounds like it would cost more to remove and strip down andreplace parts.

Alistair · Answer

Hi Chris, from your experience the fault is the actual gearbox yes ? So a recon gearbox is the best option. If that's the case so be it, do you work with Peugeots all the time, and how long in hours should it take me to swap it over ? Thanks for your reply. Alistair.

Chris · Answer

well it should not take to long say about 3-4 hrs if you got tools for thejob,and take your time , and not keep stopping for a cupper and bacon forget to replace the gearbox oil,also while you got box out check or replacethe clutch gear. good luck

Alistair · Answer

ok, have found a 'competent person' who thinks it may be the fifth gear and the syncro need replacing, can all be done in situ via gearbox end plate. only 4 components required, Take a couple of hours tops, reckons about £

400.00. He is coming round saturday for a look - so will report back with findings. He's also saying could be a loose nut on end of shaft or low fluid ?? cheers Ali

Chris · Answer

Ebay have gearboxes on there for your  make sure he has lots of cups =of tea or coffee to keep him going .good luck=20--=20Chris

Alistair · Answer

Pleased to report - we took off the gearbox end plate and found nothing too apparent, when we went to drain the gearbox - it contained about 1 cupful, not the 1.9 ltrs we were expecting. We have run 7000 miles with almost no gearbox oil ! (lucky, that's more than lucky). Filled it up and after extensive road test - no more jumping out of 5th gear. All sorted for about a score. Sweet !!! Alistair

Chris · Answer

Now why was there only a cupfull in there? do  you have leak ??so its time =to keep a eye on the oil level.each month,--=20Chris

'55 307 Jumps out of 5th gear?

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