reverse gear crunch

shiznit76 · Dec 10th, 2009, 11:05

I've had the clutch changed and dual mass fly wheel also, both needed doing, but still having problems getting into reverse. If i hold the stick why starting to move back it clicks it. Garage suggests it could be one of the teeeth has sheared in gearbox.
I know there is the problem with bushes wearing in older s40's, i have the 2004 model, could this be the problem in this model also?

coupeboy · Dec 11th, 2009, 13:19

Are you saying it wouldn't go into reverse easily before the clutch was changed or only since it was changed? If only since the garage is at fault for not resetting the gearchange linkage correctly. This is an adjustable length rod and setting this up correctly could resolve your issue. Wear in the gearbox selector fork within the gearbox could explain the failure to select gears but is unlikely to be worn in reverse gear (unless you reverse everywhere!). Sometimes reverse selection can be achieved by waiting until you come to a complete standstill, then selecting a forward gear and then reverse. You could have some slight clutch drag (newness or oil leaks?) which mean the gear train is still turning in neutral. This needs to be stopped prior to selecting reverse. Another possibility is the clutch slave cylinder needs bleeding of air in the system - try this first as it is dead easy to reach from above - you just need an assistant, new fluid, tube and jamjar. Hope that helps.

shiznit76 · Dec 11th, 2009, 20:19

it was happening before and after new clutch. Garage said that the linkages cannot be adjusted, thats why he believes a tooth in the reverse gear may have sheared off.

Clan · Dec 11th, 2009, 22:31

you will have the 850 type gearbox surely , with syncromesh on reverse gear ...

shiznit76 · Dec 11th, 2009, 22:56

Quote:

Originally Posted by Clan

you will have the 850 type gearbox surely , with syncromesh on reverse gear ...

its the mp56 gear box

shiznit76 · Jan 2nd, 2010, 21:06

still having this problem, anyone suggest and ideas?
Supposedly the linkage on thgese gearboxes cannot be altered, can the bushes be changed>

stevo48 · Jan 2nd, 2010, 21:11

had the same issue with my 1st v40, it was P reg and always crunched when engaging reverse right up to the day I traded it in.
It was the 1.8 Volvo engined V40.

grass hopper · Jan 2nd, 2010, 21:21

dip the clutch then engage 1st gear and with the clutch still fully depressed engage reverse gear if the crunch disappears then the friction plate is sticking on the splines,if not the clutch is dragging and requires checking again.

shiznit76 · Jan 2nd, 2010, 21:35

what does it mean if the fricition plate is sticking, is this another repair altogether?

shiznit76 · Jan 2nd, 2010, 22:29

it slips into gear ok with that method bu crunches as soon as you try to pull away, any ideas? it was happening before the clutch was changed also

Dec 10th, 2009, 11:05	#1
shiznit76 Senior Member Last Online: Sep 11th, 2018 21:16 Join Date: Feb 2008 Location: kilmarnock	reverse gear crunch I've had the clutch changed and dual mass fly wheel also, both needed doing, but still having problems getting into reverse. If i hold the stick why starting to move back it clicks it. Garage suggests it could be one of the teeeth has sheared in gearbox. I know there is the problem with bushes wearing in older s40's, i have the 2004 model, could this be the problem in this model also?

Dec 11th, 2009, 22:31	#4
Clan Experienced Member Last Online: Yesterday 23:05 Join Date: Jun 2007 Location: L/H side	you will have the 850 type gearbox surely , with syncromesh on reverse gear ... __________________ My comments are only based on my opinions and vast experience .

Jan 2nd, 2010, 21:21	#8
grass hopper Premier Member Last Online: Mar 18th, 2011 13:38 Join Date: May 2009 Location: grassmere!	dip the clutch then engage 1st gear and with the clutch still fully depressed engage reverse gear if the crunch disappears then the friction plate is sticking on the splines,if not the clutch is dragging and requires checking again. __________________

Dec 11th, 2009, 13:19	#2
coupeboy Senior Member Last Online: Oct 1st, 2019 08:50 Join Date: Jan 2009 Location: Preston	Are you saying it wouldn't go into reverse easily before the clutch was changed or only since it was changed? If only since the garage is at fault for not resetting the gearchange linkage correctly. This is an adjustable length rod and setting this up correctly could resolve your issue. Wear in the gearbox selector fork within the gearbox could explain the failure to select gears but is unlikely to be worn in reverse gear (unless you reverse everywhere!). Sometimes reverse selection can be achieved by waiting until you come to a complete standstill, then selecting a forward gear and then reverse. You could have some slight clutch drag (newness or oil leaks?) which mean the gear train is still turning in neutral. This needs to be stopped prior to selecting reverse. Another possibility is the clutch slave cylinder needs bleeding of air in the system - try this first as it is dead easy to reach from above - you just need an assistant, new fluid, tube and jamjar. Hope that helps.

Dec 11th, 2009, 20:19	#3
shiznit76 Senior Member Last Online: Sep 11th, 2018 21:16 Join Date: Feb 2008 Location: kilmarnock	it was happening before and after new clutch. Garage said that the linkages cannot be adjusted, thats why he believes a tooth in the reverse gear may have sheared off.

Jan 2nd, 2010, 21:06	#6
shiznit76 Senior Member Last Online: Sep 11th, 2018 21:16 Join Date: Feb 2008 Location: kilmarnock	still having this problem, anyone suggest and ideas? Supposedly the linkage on thgese gearboxes cannot be altered, can the bushes be changed>

Jan 2nd, 2010, 21:11	#7
stevo48 Premier Member Last Online: Jul 9th, 2020 20:08 Join Date: Dec 2007 Location: Halifax West yorkshire	had the same issue with my 1st v40, it was P reg and always crunched when engaging reverse right up to the day I traded it in. It was the 1.8 Volvo engined V40.

Jan 2nd, 2010, 21:35	#9
shiznit76 Senior Member Last Online: Sep 11th, 2018 21:16 Join Date: Feb 2008 Location: kilmarnock	what does it mean if the fricition plate is sticking, is this another repair altogether?

Jan 2nd, 2010, 22:29	#10
shiznit76 Senior Member Last Online: Sep 11th, 2018 21:16 Join Date: Feb 2008 Location: kilmarnock	it slips into gear ok with that method bu crunches as soon as you try to pull away, any ideas? it was happening before the clutch was changed also

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