2nd gear in the Griffith
2nd gear in the Griffith
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simply red

Original Poster:

79 posts

256 months

Saturday 5th February 2011
quotequote all
Anyone have any thoughts on this problem.
I have 1992 4.0 litre Griff and have a problem when changing down from third to second, it has never been brilliant but this week it just graunches if I change on the move. Changing up is perfectly OK, anyone got any ideas on this?

pwd95

8,456 posts

267 months

Saturday 5th February 2011
quotequote all
I have an early Chim with the same gearbox & it's very similar. It's been like it for a while & I'm convinced it's the remote linkage that's at fault. It's had several new bushes & it deteriorates very quickly. Even though it's basically an old Rover geabox it has a unique selector mechanism, which I'm sure is the culprit. scratchchin



Photo courtesy of someone else on here. Can't remember who now. thumbup

Barkychoc

7,848 posts

233 months

Saturday 5th February 2011
quotequote all
Where is your clutch biting point?
If it is quite low you may have a clutch hydraulic problem - when changing down you're getting the 2nd gear synchro rings to accelerate up to a good speed pretty quickly - going up the box doesn't create such a speed difference.
A bit of clutch drag could be making it worse.
See if it is any better standing hard on the clutch with the pedal right to the floor.

If its not hydraulics then it could be worn 2nd gear syncro rings - but that doesn't sound likely if its suddenly come on - gearboxes tend to deteriorate slowly unless you've broken something.

I won't say anything about linkage - thats been covered above biggrin

simply red

Original Poster:

79 posts

256 months

Saturday 5th February 2011
quotequote all
Thanks guys, I did wonder if it could be a clutch problem, it bites quite a way down, but with second gear if I am travelling at around 10mph and try to change down, even with the clutch pedal pushed flat to the floor it is still graunching, but if I slow down to 2mph then it is OK. Also I think this has actually been progressively getting worse over a period of time.

coetzeeh

2,890 posts

265 months

Sunday 6th February 2011
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Sounds like synchro rings to me - typical symptoms.

Hoover.

5,993 posts

271 months

Sunday 6th February 2011
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Same happened to my old LT77 box... synchromesh thingy knackered/worn out....... it's time for a gearbox rebuild I'm afraid


simply red

Original Poster:

79 posts

256 months

Monday 7th February 2011
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Talked to Topcats today, looks like a new or recon gearbox may be the answer!

gizzer

671 posts

235 months

Monday 7th February 2011
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Hoover. said:
Same happened to my old LT77 box... synchromesh thingy knackered/worn out....... it's time for a gearbox rebuild I'm afraid


wavey