Think I've broke 5th gear...
Think I've broke 5th gear...
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Discussion

mrpbailey

Original Poster:

1,015 posts

215 months

Friday 1st March 2013
quotequote all
Car has been sat in the garage for the past 6 weeks, and when I came to reverse it out yesterday it wouldnt move. I assumed it was just the brakes may have been damp when I put it away so had seized a little, so gave it a few revs and it let go at about 4k revs.
It made a sort of bang as it let go, and jerked backwards.
Anyway, now when I put my foot down in 5th, it does a sort of judder and doesnt accelerate properly, as if its grinding on the gear.

Is it possible my method of getting the car out has done some major damage to 5th?

Cheers
Paul

2.5bluenob

1,620 posts

205 months

Friday 1st March 2013
quotequote all
mrpbailey said:
Car has been sat in the garage for the past 6 weeks, and when I came to reverse it out yesterday it wouldnt move. I assumed it was just the brakes may have been damp when I put it away so had seized a little, so gave it a few revs and it let go at about 4k revs.
It made a sort of bang as it let go, and jerked backwards.
Anyway, now when I put my foot down in 5th, it does a sort of judder and doesnt accelerate properly, as if its grinding on the gear.

Is it possible my method of getting the car out has done some major damage to 5th?

Cheers
Paul
Can you hold the gearstick and feel the vibrations through it?

mrpbailey

Original Poster:

1,015 posts

215 months

Friday 1st March 2013
quotequote all
Not so bad that it made me think somethings wrong, if that makes sense. But when I accelerate in 5th the noise is very noticeable even over the engine noise

TuxMan

9,011 posts

267 months

Friday 1st March 2013
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Hi Paul , jack up and check for play on the rear wheels !!! Also check hub nuts to make sure there are tight . Also remove Calipers on rear and remove disc to check hand brakes shoes , I wonder I'd a lining has com off and is stuck to the disc .

Tux

Gadgeroonie

5,362 posts

265 months

Friday 1st March 2013
quotequote all
is it 5 or 6 speed ?

do you have a lsd/atb

mrpbailey

Original Poster:

1,015 posts

215 months

Friday 1st March 2013
quotequote all
Hi Tux, will give that a try tomorrow, thanks. If it was something like hub nuts or handbrake would I not get the grinding in every gear rather than just 5th at around 3-4k rpm?
Also, should have said car was left for 6 weeks with handbrake off.

The car is a 2004 6 speed with LSD

2.5bluenob

1,620 posts

205 months

Friday 1st March 2013
quotequote all
mrpbailey said:
rather than just 5th at around 3-4k rpm?


The car is a 2004 6 speed with LSD
I think if its gear related then if 5th gear would be broken then it would be effected all the way through yhe rev range not just at 3-4 k RPM
steve

mrpbailey

Original Poster:

1,015 posts

215 months

Saturday 2nd March 2013
quotequote all
2.5bluenob said:
I think if its gear related then if 5th gear would be broken then it would be effected all the way through yhe rev range not just at 3-4 k RPM
steve
good point

TuxMan

9,011 posts

267 months

Saturday 2nd March 2013
quotequote all
Hi Paul , 5th gear , 3 to 4 k rev range is right at peak torque and probably the highest load in 5th , I think something either bent or loose , grinding noises tend to be loose hub nut related but could it also be pickup on the disc causing a vibration . Question is what caused the crack when you moved ?
If parked with handbrake off then it can only be pads sticking to disc , I would be tempted to check around that areas.

Tux

D_G

1,935 posts

238 months

Saturday 2nd March 2013
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Unless you cracked the car free in 5th I can't see why you have broken that but from your description it does appear 5th could be spinning in the shaft. The splines on this gear are pretty small for the job. You could try lifting the car, put on the handbrake and gently try pulling away in 5th, if the gear is spinning on the shaft you will know soon enough!

2.5bluenob

1,620 posts

205 months

Saturday 2nd March 2013
quotequote all
D_G said:
Unless you cracked the car free in 5th I can't see why you have broken that but from your description it does appear 5th could be spinning in the shaft. The splines on this gear are pretty small for the job. You could try lifting the car, put on the handbrake and gently try pulling away in 5th, if the gear is spinning on the shaft you will know soon enough!
I have a damaged 4th gear. trust me if the gear is damaged you would know about it! its not the same symptoms as described here.

mrpbailey

Original Poster:

1,015 posts

215 months

Saturday 2nd March 2013
quotequote all
Ok so I have had the rear wheels off this aft, hub nuts are tight, removed brake pads and everything seems ok.
Went out for another drive and noticed a couple of things, if I accelerate slowly through 5th then I dont get no noises, its just as normal, however if I plant my foot at anything over 3k rpm (only in 5th) the car judders and makes a 'clunking' noise coming from the rear passenger wheel area, so i'm still thinking gearbox, even though I can't work out why!
The car drives perfectly normal in every other gear which is why I dont think its brakes or anything.

But what's confusing me is if its 5th gear, why only above 3k rpm when accelerating hard and not all the time?

D_G

1,935 posts

238 months

Saturday 2nd March 2013
quotequote all
Did you try what I suggested, or just try pulling away in fifth and see if you have any noises?

mrpbailey

Original Poster:

1,015 posts

215 months

Saturday 2nd March 2013
quotequote all
No I somehow managed to miss your suggestion! Will give that a try first thing tomorrow. What should happen?

D_G

1,935 posts

238 months

Saturday 2nd March 2013
quotequote all

Ideally no noise and the engine should stall. It's not an ideal test as the gearing will encourage it to stall but if the gear is turning on the shaft then hopefully you can put enough torque through it which should make it spin if it's broken. If it is then you will hear it clear as day!

Good luck thumbup

Gadgeroonie

5,362 posts

265 months

Saturday 2nd March 2013
quotequote all
check the rear stub axle bearing