i bought a T3 gearbox.. the only running one i could find...
and was told it has a crunchy 2nd gear... what is making it crunch, and how do we fix it??
abelg Learner Dubber
8 posts · joined Nov 2005 ·
crunchy 2nd gear
tassupervee That really hurts doesnt it!
1,171 posts · joined Sep 2003 ·
The synchro ring on that gear is worn.
Very basically, synchro rings work a bit like a little clutch and equalise the speed of the gears/shafts/selector rings so the selector ring engages smoothly on the gear.
The grinding noise is the splines on the inside of the selector rings clashing with the splines on the gear which is not turning at the same speed as the ring.
You could try and add and engine additive like STP or Forte. This will thicken up the oil quite a bit and may help the operation of the synchros but may make the box quite clunky, particularly when cold.
You either live with it or you have to have the box stripped and synchros replaced.
Its a big job and unless you have an understanding friend that can do it for you, Its going to cost you lots of money.
Bummer M8
L8tr
E
Very basically, synchro rings work a bit like a little clutch and equalise the speed of the gears/shafts/selector rings so the selector ring engages smoothly on the gear.
The grinding noise is the splines on the inside of the selector rings clashing with the splines on the gear which is not turning at the same speed as the ring.
You could try and add and engine additive like STP or Forte. This will thicken up the oil quite a bit and may help the operation of the synchros but may make the box quite clunky, particularly when cold.
You either live with it or you have to have the box stripped and synchros replaced.
Its a big job and unless you have an understanding friend that can do it for you, Its going to cost you lots of money.
Bummer M8
L8tr
E
Im not a complete idiot, quite a few parts are missing....
abelg Learner Dubber
8 posts · joined Nov 2005 ·
yeh i was told $600-$700 to fix.... :cry
helbus Administrator Mad fabricator, paint and body
7,386 posts · joined Sep 2002 ·
A gearbox rebuild with new bearings, crownwheel and pinion and three new synchro's cost $1500 on a 2 litre box. Not inexpensive, but a pleasure to drive now.
karmen Son of Jim - Creator of Good
2,648 posts · joined Apr 2003 ·
double shuffle n u ll be right for a while
synnchro rings also at times crack !!! then its hard to double shuffle.
synnchro rings also at times crack !!! then its hard to double shuffle.
Karmen
56 oval resto 60 Cal KG
58 & 62 beetle parting. 74 panel parting
63 Baja 80 GLD parting
58 donor split 11 window 63 Splitty sgle cab /son's
96 Seat Cordoba GLX daily drvr.
56 oval resto 60 Cal KG
58 & 62 beetle parting. 74 panel parting
63 Baja 80 GLD parting
58 donor split 11 window 63 Splitty sgle cab /son's
96 Seat Cordoba GLX daily drvr.
helbus Administrator Mad fabricator, paint and body
7,386 posts · joined Sep 2002 ·
Always a problem that second gear syncro. The tart (71 beetle) has a crunchy second gear. When you think about it, it is the most used synchro. You change from first to second or third to second while moving more than any other gear change. Especially with a city car.
abelg Learner Dubber
8 posts · joined Nov 2005 ·
is it hard to change the second gear snchro my self??
ive got another box with didnt have any second gear probs...so i could probally mate it , if not too hard
ive got another box with didnt have any second gear probs...so i could probally mate it , if not too hard
helbus Administrator Mad fabricator, paint and body
7,386 posts · joined Sep 2002 ·
As far as I know, there are a few tools required for gearbox rebuilding that are not part of a standard tool kit, and the diff centre will need to be pre loaded if the bearings are replaced. It is definitley a job best left to those that will offer a warranty.
tassupervee That really hurts doesnt it!
1,171 posts · joined Sep 2003 ·
Yer quite right Hellbus.
Vdub transaxles buildups are not for the faint hearted!
Live with it, try the STP or find another gearbox and finally, have it done for you.
L8tr
E
Vdub transaxles buildups are not for the faint hearted!
Live with it, try the STP or find another gearbox and finally, have it done for you.
L8tr
E
Im not a complete idiot, quite a few parts are missing....