bror.axelson
HBK Medlem
Hittade detta på en engelsk site.
Verkar vara ganska enkelt att fixa och slippa dessa störande vibrationer
These notes relate to doing the job on a Petrol Version. Some diesel models require removal of their air intake hose and filter to gain better access to the collar.
The O-Ring is housed in a collar/bush on top of the gearbox.
Verkar vara ganska enkelt att fixa och slippa dessa störande vibrationer
GEARBOX O-RING (BUSH) REPLACEMENT
Definitions used in this article:
- Selector Rod : the vertical rod that enters the top of the gearbox via the Collar/Bush
- Collar/Bush: the O-Ring housing as shown in the photo below.
- Shift Fork(s): Within the gearbox, Items 6 and 7 in the photo below.
- Excessive free play in existing housing leading to sloppy imprecise gear change.
- Worn O-Ring allowing water/dirt to enter the gearbox (with potentially disastrous consequences)
These notes relate to doing the job on a Petrol Version. Some diesel models require removal of their air intake hose and filter to gain better access to the collar.
The O-Ring is housed in a collar/bush on top of the gearbox.
- Before commencing work thoroughly clean the area around the collar to prevent dirt entering the gearbox (very important to keep it clean).
- Put the van in Reverse - this is important as it "locks" the selector rods in place.
- Remove the spare wheel to improve access (also recommended that you put a protective cover such as an old towel over the front of the van to prevent scratches to the bodywork).
- Remove the 2 linkage items shown in the photo noting the following:
- Is is not necessary to remove the ball socket link, but if you do be careful to retain the clip for the ball-socket
- when prising off the pressed-on ball socket on the vertical link be careful not to damage it by using one lever each side. A large (e.g. 17mm) open-ended spanner is ideal for this. . - Lift the linkage off the selector Rod and store the components safely out of the way.
- Undo the collar/bush. (do NOT fully undo at this stage) Note that this collar can be very tight (80ftlbs) but has 2 flats on the top. I use a custom-made socket and 2-3' breaker bar, but in the past have used a 12" adjustable spanner and a lump-hammer. Note that you may find it necessary to unclip and move some of the hoses/wiring etc out of the way. Try not to damage the collar flats. If you do you may end up having to use a pipe wrench and having them re-machined or filing them flat again.
- Press down gently on the top of the selector rod whist undoing the collar . If you have put the van in reverse earlier is should not "pop up, however it pays to be cautious. You can now remove the collar and release the selector rod GENTLY. Do not remove the selector rod nor lift it up otherwise it can become disengaged from the Shift forks inside the gearbox.
- Prise out the old O-Ring from the collar and replace it with the new O-ring.
Picture: Top of Gearbox (RH Drive petrol version shown).
Note: you can actually leave the long selector Arm (the ball socket) attached if you wish.
Note: you can actually leave the long selector Arm (the ball socket) attached if you wish.
Picture showing shape of the selector rod.
- Liberally lubricate (grease or G/Box Oil) the O-Ring prior to refitting the collar over the selector shaft.
- Before fully tightening the collar check that the selector shaft is still engaged in the shift forks by trying to turn it by hand . There should be very little free play. If it moves freely in either direction it has been disengaged and you'll need to refer to the section below.