Problem Getting Into Reverse - Clutch?

[sepulchrave]

Do you mean the VXT75?

 

No, it doesn't, Sychromesh is on the five forward gears only.

 

I will stand corrected if anyone can find a reverse gear synchromesh manual gearbox in commonly available roadgoing vehicles with ONE reverse gear.

 

What Getrag have done is probably fit a single washer with no baulk ring, not really synchromesh at all, rather a simple drag washer to minimise crunch. The vast majority of manual gearboxes have always had straight-cut rather than helical reverse gears, and you can't get synchromesh to work on straight-cut gears since it relies on the lateral thrust generated by the helical gear to load the synchro rings (usually three, I think).

 

Anyway doesn't the OP have a VW 02A box? :16:

 

Why can't I be right, my wife isn't even here! :16:

[Guest 3.5bullet]

are you standing? http://autoweb.drive.com.au/cms/A_102741/newsarticle.html and http://www.mynrma.com.au/landcruiser-prado...l_toylanpra.asp

and if you happen to be able to browse a parts listing for the sharan next time your in the dealers ask then to look up part number 006 311 295C synchronizer ring reverse gear !

 

 

Do you mean the VXT75? typo i do apologize

 

 

links edited as posted same one twice!

[sepulchrave]

*see edit

 

Aren't they both the same article describing exactly what I 've just explained?

 

Oh bugger it, forget about it...I can't be bothered.

Have maximum Troll points.

 

The OP's problem is not the bl**dy gearbox anyway, it's the linkage. So there :16:

[tim-spam]

The reverse gears are also helical on these cars, as they are on my wife's 1990 Mercedes 190 - the reason is all to do with 'refinement'. In fact the old VW411's of the late 60's / early 70's had helical reverse gears, but no synchromesh. Many newer cars now have synchromesh on reverse gear - true, it may be of a weaker design than for the forward gears, but you can select reverse gear on my Alhambra when creeping forwards with no crunching, as you can on vectra pool cars at my place of work. The Merc 190 however crunches, as there is no synchromesh. I would obviously not try it at higher speeds (not on my car anyway....). More expensive cars have had synchromesh on reverse for many years - I believe the Porsche 924 had it for example. Although I don't know, perhaps the 6 speed Mk 2's are the only Sharalhambras to have reverse gear synchromesh?

[west]

looks like buncer has left the arguing to others.

 

Great response from the experts. well done.

 

But, maybe there is no problem!

Last night when reversing on the drive, i automatically 'double clutched' to get the reverse gears to engage properly, and the more i think about it, i have done this on all of my cars.

By double clutching, i mean just pulling the clutch up a tad to re-spin the (lay shafts)? et all before re-attempting reverse. I do it that often its second nature.

 

Mr gearbox problem, i would not worry about it. live with it and see if it disappears when a new clutch is eventually fitted. double clutching will probably work.

 

(This is exactly what i intend to do about my nackered first gear.)

[Bigjeeze]

Every day when I drive into my house I select reverse whilst still moving (2-3 mph) before reversing to get into my space. It never ever either refuses or crunches.

 

It crunches when cold changing from 1st to second though!!

 

 

It's a linkage or cable issue. :16:

[tim-spam]

Which means that there must be some sort of synchromesh on your reverse gear.....

 

I bet it crunches when you drive into your house though.....

[Bigjeeze]

Which means that there must be some sort of synchromesh on your reverse gear.....

 

I bet it crunches when you drive into your house though.....

 

 

Well no because I have a large cushion I use to stop me!!!! :19:

[tim-spam]

Right, I've just done a little experiment. Rolling forwards at 15 mph, I tried gently pushing the gear lever into reverse, and guess what - after a little resistance for around 1 second while the synchro rings did their work, it went into reverse with no problem whatsoever. Therefore, the 6 speed VW gearbox has synchromesh on reverse gear, and a very effective one too. No argument or doubt about it.

 

Therefore, the problem selecting reverse could well be the synchromesh preventing the gear from being selected due to clutch drag - so I think that the clutch is the most likely culprit.

[Bigjeeze]

Right, I've just done a little experiment. Rolling forwards at 15 mph, I tried gently pushing the gear lever into reverse, and guess what - after a little resistance for around 1 second while the synchro rings did their work, it went into reverse with no problem whatsoever. Therefore, the 6 speed VW gearbox has synchromesh on reverse gear, and a very effective one too. No argument or doubt about it.

 

Therefore, the problem selecting reverse could well be the synchromesh preventing the gear from being selected due to clutch drag - so I think that the clutch is the most likely culprit.

 

 

 

Maybe!!!! :19:

[Masked Marauder]

If it is a cable or selector problem then it should be hard to get reverse even with the engine off.

[Bigjeeze]

If it is a cable or selector problem then it should be hard to get reverse even with the engine off.

 

 

Well - I did get the bit about the synchro right!!! :19:

[tim-spam]

It is possible that the selector is at fault, but the symptoms make it more likely to be the clutch.

[Buncers]

Just had a new clutch fitted at Mr Clutch (