Grinding on reverse gear only....
Grinding on reverse gear only....
Author
Discussion

phil1979

Original Poster:

3,670 posts

244 months

Wednesday 13th October 2010
quotequote all
... noticed last night on the Alfa (GT diesel with the 6-speed box).

I was doing a load of errands... lots of stop/starting etc, and noticed a slight grinding when selecting reverse, but not every time... maybe 1 out of every 3 attempts.

The clutch action & travel feels normal, and all other gearchanges are fine.

Should I expect a horror bill, or was it linked to the warm-running of the engine/trans etc?

Cheers

TheRoadWarrior

1,242 posts

207 months

Wednesday 13th October 2010
quotequote all
Was the car totally stationary when you put it into reverse?

There wont be a synchro on reverse, so if you're moving it'll crunch going in.

bob1179

14,138 posts

238 months

Wednesday 13th October 2010
quotequote all
I've had a couple of cars do this.

I believe the trick is to make sure the engine is at idle when selecting reverse and do it gently, instead of putting it straight into gear.

smile

phil1979

Original Poster:

3,670 posts

244 months

Wednesday 13th October 2010
quotequote all
The car was stationary each time, and my action was the same as it's always been, hence it seemed odd to me.

.:ian:.

3,069 posts

232 months

Wednesday 13th October 2010
quotequote all
Seems an "alfa thing" my gtv does this too, occasionally.

rallycross

13,749 posts

266 months

Wednesday 13th October 2010
quotequote all
you might find if you select 2nd, and then select reverse and it wont crunch

CraigyMc

18,369 posts

265 months

Wednesday 13th October 2010
quotequote all
phil1979 said:
Should I expect a horror bill, or was it linked to the warm-running of the engine/trans etc?
Neither, or both.

Neither, because what you describe is totally normal for a gearbox with no synchro on reverse (ie most manual gearboxes). Both, because you're driving an alfa and that often leads to bills.. but not necessarily gearbox ones!

smile

C

phil1979

Original Poster:

3,670 posts

244 months

Wednesday 13th October 2010
quotequote all
Thanks - I'll give it a whirl.

kambites

71,452 posts

250 months

Wednesday 13th October 2010
quotequote all
Could be that the clutch is dragging very slightly?

alfa pint

3,856 posts

240 months

Wednesday 13th October 2010
quotequote all
rallycross said:
you might find if you select 2nd, and then select reverse and it wont crunch
TVRs do this too - can't get reverse without going into 5th first. Worth a shot.

Had a similar issue with my missus' volvo and it was only a rubber grommet on the gear selector that had worn. Tightened up the linkage and it's all fine.

Jeffmaniac

533 posts

228 months

Wednesday 13th October 2010
quotequote all
Used to have this problem in my polo. Check your power steering and brake fluid levels as quite often with hydraulic clutches they use the same fluid.







Edited by Jeffmaniac on Wednesday 13th October 09:59

nelly1

5,665 posts

260 months

Wednesday 13th October 2010
quotequote all
Jeffmaniac said:
Used to have this problem in my polo. Check your power steering fluid levels as quite often with hydraulic clutches they use the same fluid.
You mean brake fluid nerd

nelly1

5,665 posts

260 months

Wednesday 13th October 2010
quotequote all
That was a fast edit!

jimmy156

3,833 posts

216 months

Wednesday 13th October 2010
quotequote all

Think its common on alfa's then, my 156 does this, and as mentioned, a selecting a forward gear and then reverse seems to do the trick smile