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Author Topic: Gearbox :)  (Read 2294 times)

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Marks DTM Calib

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Re: Gearbox :)
« Reply #15 on: 11 June 2009, 09:46:13 »
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These pics, from another site, show a large nut, mine is a small cylinder ?

http://www.vauxhallownersnetwork.co.uk/showthread.php?t=62232Pics]


I can imagine there would have been variations during manufacture so either a plug or a cylinder fitment would have worked well
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Jimbob

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Re: Gearbox :)
« Reply #16 on: 11 June 2009, 19:07:14 »
right, progress  :D

With the help of the gas hob, and some heat application, I got the old level plug out....Heat, then molegrips & socket.

This collar goes all the way through the filler hole, which it rotates in.

Is this fixable?



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Jimbob

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Re: Gearbox :)
« Reply #17 on: 12 June 2009, 12:44:05 »
Hopefully gonna have a go at the thrust washer tonight!

Just gotta find a good way of securing the box upright  ;D

(Mark, you think you can reattach that bit then?  If so Ill get it in the post, cheers)
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Re: Gearbox :)
« Reply #18 on: 12 June 2009, 13:05:17 »
I'm nor argueing with Sasanach's excellent looking guide....


But why does the box need to be vertical for this?
what would happen / go wrong if done on the horizontal?
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Marks DTM Calib

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Re: Gearbox :)
« Reply #19 on: 12 June 2009, 13:13:44 »
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I'm nor argueing with Sasanach's excellent looking guide....


But why does the box need to be vertical for this?
what would happen / go wrong if done on the horizontal?

Well removing the front section I suspect will remove support for the input shaft....

And yes, reacon I can braise or weld that
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Jimbob

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Re: Gearbox :)
« Reply #20 on: 12 June 2009, 13:21:14 »
Excellent, also, can a box be rested on its 'end'  for the duration of a thrust washer change, or does it need to be suspended?
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Marks DTM Calib

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Re: Gearbox :)
« Reply #21 on: 12 June 2009, 13:23:54 »
Should be ok 'on its end'!

Put something on the floor to protect the output shaft
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Jimbob

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Re: Gearbox :)
« Reply #22 on: 12 June 2009, 13:26:43 »
was gonna do it on a thick wad of newspaper, and possibly a ratchet strap around my large metal tool cabinet, sounds like that may be a go-er then  :D
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sassanach

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Re: Gearbox :)
« Reply #23 on: 12 June 2009, 14:02:35 »
if you leave the gearbox flat you run a very real risk of the front "addon"part of the gearbox detaching itself, and if that happens almost certainly you will break the paper gasket behind. you will regret it if it does :'(
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Jimbob

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Re: Gearbox :)
« Reply #24 on: 12 June 2009, 14:07:57 »
Fair enough, nice to know the reasons.

I follow advice, but nice to understand why.

Got a paper gasket with my jpat order anyway, just in case for the sake of 60p or whatever it was :y

It will be done vertically, hopefully tonight.

Then as soon as Mark can have a go at that level plug I can arrange the swap  :D

Be nice to (hopefully) have a smooth box that doesnt drop out again  :D
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sassanach

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Re: Gearbox :)
« Reply #25 on: 12 June 2009, 14:12:50 »
the paper gasket that im refering to is between the front and rear sumps, major dis-assembly and special tools reqd to replace.lot of hassle
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Re: Gearbox :)
« Reply #26 on: 12 June 2009, 14:14:24 »
Ahhh that makes real sense!

Think If I broke that one, I would be looking for another new box  ;D
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Re: Gearbox :)
« Reply #27 on: 12 June 2009, 14:42:54 »
I Think Im gonna leave that brake band reset alone.

Oil that was in this box doesnt look bad, and I dont trust my abilities not to make something worse, the procedure just looks too easy for me to get wrong.  Best left alone I think
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Marks DTM Calib

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Re: Gearbox :)
« Reply #28 on: 12 June 2009, 14:49:44 »
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I Think Im gonna leave that brake band reset alone.

Oil that was in this box doesnt look bad, and I dont trust my abilities not to make something worse, the procedure just looks too easy for me to get wrong.  Best left alone I think

I dont know how you can get it wrong...it is SO easy!
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Jimbob

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Re: Gearbox :)
« Reply #29 on: 12 June 2009, 14:52:36 »
Quote
Quote
I Think Im gonna leave that brake band reset alone.

Oil that was in this box doesnt look bad, and I dont trust my abilities not to make something worse, the procedure just looks too easy for me to get wrong.  Best left alone I think

I dont know how you can get it wrong...it is SO easy!


When the sump is removed there is a dome held on with 3 or 4 bolts. Remove it and there is a threaded screw with a lock nut, release it then tighten the screw to 5nm torque, back off five turns and then tighten the lock nut, this sets the brake band. Replace the dome then it`s a gearbox re-fill

Is what I have for this job....

Before getting onto the fact I havent got a torque wrench that low...
A torque (uber-low) and 5 turns sounds very easy to break up....


Or am I on the wrong path here?
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