Gearbox Clutch and Reverse

ChrisC · Post by **ChrisC** » Mon May 31, 2010 3:30 pm

After adjustment\service you can change gears fine, but after a few weeks it usually goes back to crunching when going into reverse.

Is this a standard problem - or can it be fixed?

Any help greatfully rewcieved

thanks

Chris

Dollywobbler · Post by **Dollywobbler** » Mon May 31, 2010 5:19 pm

Mine has a habit of crunching in reverse, especially after a long run. Being slow and/or double pumping the clutch sometimes helps.

DavidRutherford · Post by **DavidRutherford** » Mon May 31, 2010 5:44 pm

Bear in mind there is no synchromesh on reverse, so if the oil is warm, or your engine idle is a bit high, you may need to wait 2-3 seconds from pressing the clutch to allow the input shaft to spin down before engaging reverse.

Dollywobbler · Post by **Dollywobbler** » Mon May 31, 2010 6:28 pm

That's a point. When I think about it, I always drop into second before first in the 2CV (synchro-free first) so maybe I'll drop in a gear to stop the box with the BX too.

citronut · Post by **citronut** » Tue Jun 01, 2010 8:14 am

usualy if it becomes difficult to engadge gears soon after the clutch has been adjusted, it could mean something is failling/breaking like the bracket on the rear of the pedel box, clutch fork, or the actuatting arm,

regards malcolm

macplaxton · Post by **macplaxton** » Tue Jun 01, 2010 5:15 pm

citronut wrote:usualy if it becomes difficult to engadge gears soon after the clutch has been adjusted, it could mean something is failling/breaking like the bracket on the rear of the pedel box, clutch fork, or the actuatting arm,

regards malcolm

Or even the fingers of the diaphragm spring on the clutch cover...

ken newbold · Post by **ken newbold** » Tue Jun 01, 2010 6:40 pm

macplaxton wrote:
citronut wrote:usualy if it becomes difficult to engadge gears soon after the clutch has been adjusted, it could mean something is failling/breaking like the bracket on the rear of the pedel box, clutch fork, or the actuatting arm,

regards malcolm
Or even the fingers of the diaphragm spring on the clutch cover...

I didn't want to say that

ChrisC · Post by **ChrisC** » Tue Jun 01, 2010 7:10 pm

didn't want to say that

Errm, should I be worried...?

I don't think it is a syncromesh issue, when I say crunch, it is more like CRRRRUNCH even after several attempts.

Summit is up, or down, any pointers will help. The car is currently SORN whilst I wait for the carb to be fixed. I'll get it properly looked over then, but if I know where to look first it'll be a great help

thanks

Chris

citronut · Post by **citronut** » Tue Jun 01, 2010 7:58 pm

you can check everything you can see for cracks or damage

then if it is something breaking/failling, just try adjusting it a bit more to see how long it last's, eventually what ever is falling will go completely,

regards malcolm