MikeDISCO

Well-Known Member

Full Member

• Mar 13, 2014

• #1

Hi Gents,

Having a few issues with my gearbox.

Started around 6 months ago with a slight crunch into 1st gear.

I managed it ok with selecting the revs and gently changin gear and it helped.

Now I have the same crunch when coming down the gears from 4th into 3rd and the original issue of selecting 1st.

What ever I have tried at loads of speeds and revs its always the same issue.

So im after a plan of attack really and obviously work on the cheapest things first.

Im thinking...

1, Change the gearbox oil (This has been done 10 months ago)
2, ............

Not sure what to try next? Any help or advice is appreciated.

Cheers

 

jamesmartin

Well-Known Member

• Mar 13, 2014

• #2

if oil change makes no difference and reverse selects well you need new baulk rings ftc3584

 

Last edited: Mar 13, 2014

MikeDISCO

Well-Known Member

Full Member

• Mar 13, 2014

• #3

ok thanks James, any decent links for a how to guide?

 

jamesmartin

Well-Known Member

• Mar 13, 2014

• #4

it involves a complete box strip down

 

MikeDISCO

Well-Known Member

Full Member

• Mar 13, 2014

• #5

is this too much of a job for a DIY job?

ive done gear box and clutch and HG change on a 300tdi in the past.

or is this job another level?

 

jamesmartin

Well-Known Member

• Mar 13, 2014

• #6

hard for me to say really ,youd need some pullers and press and 1/2"air gun

 

MikeDISCO

Well-Known Member

Full Member

• Mar 13, 2014

• #7

is there any info on the net on how to do it or photos etc?

 

jamesmartin

Well-Known Member

• Mar 13, 2014

• #8

i think so some where , you could allways phone me

 

thought it was mine!

New Member

• Mar 13, 2014

• #9

mike phone james best thing you could do. A true gent with a true knowledge on gearboxes, if he can't answer the problem there is no answer!

 

sierrafery

Well-Known Member

• Mar 14, 2014

• #10

out of curiosity, what oil did you use in it?

 

M

Maaarrghk

New Member

• Mar 14, 2014

• #11

Thinking of the simple things first, might it be a good idea to have a shot at bleeding the clutch first, before diving into the gearbox?

Just a thought.

 

JordanTD5

Active Member

• Mar 15, 2014

• #12

The gearbox in our TD5 Disco developed the occasional crunch into third a while ago, but i was waiting until it got worse before diving in.

A few weeks ago the clutch went totally as the plastic backing cage on the release bearing failed and it would no longer push the fingers on the friction plate.

Since changing the release bearing (along with new clutch while it was apart) the crunching has totally disappeared. I'm assuming the crunch was caused by the bearing failing fully release the clutch as it got closer to failure.

Maybe worth a check if you can get a borescope into the bellhousing.