That figure was from the workshop manual. More won't hurt, however if you use too much it could work it's way past the extension housing seal.They should have 2.5 pints of oil. Or 1.42 litres. Drain the old oil first and see what comes out.
having problems with my gbox
Started by
_UCV80_
, May 22 2006 11:23 AM
44 replies to this topic
#26
_CHOPPER_
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Posted 24 May 2006 - 07:32 PM
#27
_82911_
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Posted 24 May 2006 - 08:19 PM
You can fill the box thru the speedo drive hole using a pump.You will have to have the back of the car about a foot higher than the front to do it...
PS>>> Gorrilla Mechanics......cut all his spanners in half!!!
Cheers Greg..
PS>>> Gorrilla Mechanics......cut all his spanners in half!!!
Cheers Greg..
#28
_LC2250_
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Posted 25 May 2006 - 09:49 AM
Ahh, so thats what that bolt was for ... ah well ... I'm learning as I go ... thanks Oldn64.remove the bottom bolt from teh extension housing to the mainhousing and all teh oil will drain....
Good luck with that gearbox and the many troubles it has/will cause you ToranaZ.
-Al
#29
_UCV80_
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Posted 25 May 2006 - 04:01 PM
i think i fixed it 
i fed it 1.6L of oil through the speedo hole
reversed and drove it foward about 20m didnt click out of gear, felt great
wasnt the best test though, maybe if im feeling gutsy ill take it down the street.
last time i got abused for waking up some dudes kids lol and that was when it was sparking only 4cylenders .
Thanx for everyones help
i fed it 1.6L of oil through the speedo hole
reversed and drove it foward about 20m didnt click out of gear, felt great
wasnt the best test though, maybe if im feeling gutsy ill take it down the street.
last time i got abused for waking up some dudes kids lol and that was when it was sparking only 4cylenders .
Thanx for everyones help
#30
bullitA9X
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Posted 04 July 2006 - 10:49 PM
Oldn64 my aussie 4 speed behind my warm lj 308 was filled with trans fluid as the person i got the car from told me trans fluid makes it change better but my first gear is making a clunking noise now after a few mild burnouts all the other gears are fine its just first that wouldnt be the trans fluid would it?
#31
surfmaster
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Posted 04 July 2006 - 10:57 PM
You haven't broken a tooth off have you?
#32
bullitA9X
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Posted 04 July 2006 - 11:06 PM
surfmaster is that a question for me?
#33
_troy_
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Posted 06 July 2006 - 12:39 AM
I have been through 3 shifters ,3 gear boxes ,1 Fully rebuilt all aussie M20;s They are completely USELESS!!Sloppy shifters ,Looking for gears evey gear,Popping out of gear,USELESS linkages ,obsolete linkage parts ,Leaking OIl ,grinding ,slipping,crunching,missing You name it they cost me an arm and a leg ,andmore trouble than they are worth!!!I have just gbought a celica for its gearbox,tailshaft and speedo,got the bell housing from dellow,custom cross memeber ,done the conversion waiting for the modified tailshaft to get back from the engineers and cant wait to have a nice notchy clean shifting box that wont screw up under any pressure and an extra gear should have done this 10 years ago and saved myself the constant trouble of having an unreliable piece of crap like the M20 !!!!!!!!!!!
#34
bullitA9X
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Posted 06 July 2006 - 10:23 PM
troy i pulled gearbox out today pulled my cover off and found 1 tooth on first gear missing 
rang about fixing it $1250 to do the job. i think for that price im gonna go supra 5 speed especially as my lj has a warm 308 in it.
rang about fixing it $1250 to do the job. i think for that price im gonna go supra 5 speed especially as my lj has a warm 308 in it.
Edited by bullitljv8, 06 July 2006 - 10:24 PM.
#35
surfmaster
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Posted 06 July 2006 - 10:36 PM
Yes it wassurfmaster is that a question for me?
#36
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Posted 07 July 2006 - 10:40 AM
Just to add fuel to the fire, one of my mates suggested running 1 part engine oil to 2 parts gearbox oil. I am using Castrol VMX 80 and engine oil like he suggested and so far not having any problems, apart from the gearbox shifter being total screwed.
http://www.datateck....ke=25&Model=653
Steve
http://www.datateck....ke=25&Model=653
Steve
#37
_wombat_
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Posted 08 July 2006 - 03:25 AM
back in the 80's i used the oil that holden recommended for the asian made 4/5 speeds in the commonwhores. was like trans fluid but with the high pressure additives in it. worked good stopped the hard to pick up 2nd gear when cold.
#38
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Posted 08 July 2006 - 06:26 AM
a mate of mine always runs 50/50 gearbox to auto trans fluid
#39
_lx5008_
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Posted 08 July 2006 - 08:29 AM
hi there, is the cluster gear damaged as well or is it just 1st gear.troy i pulled gearbox out today pulled my cover off and found 1 tooth on first gear missing
ive got shit loads of parts as home but no m21 clusters or input shafts.
are you close to newcastle ?
#40
bullitA9X
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Posted 08 July 2006 - 09:25 PM
Hi lx5008 the cluster gear looks ok just first gear tooth missing im in adelaide
#41
LX2DR
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Posted 08 July 2006 - 11:40 PM
One thing that i think has been overlooked, the synchro cones and the matching drive rings, that the whole thing drives on could be damaged.
If the reco box has secondhand parts then this can be where the slipping is coming from, see the photo.
If the crowns that go inside the drive hub are worn or damaged it will jump out of gear as well.
Its not hard to put it in gear, but under pressure it will jump out.
Too be clear the drive hub is pushed over the synchro (bronze peice) then the driven gear, its this driven part that needs to be in good condition to stay in gear.
I think damage to the cluster will only make noise (my opinion only)
These gearbox's are one of the simplest to work on, but some little things can make life miserable, as stated broken circlips and synchro energiser springs.
But jumping out of gear, is from my experience, damaged crowns and or sliding hubs.
If the reco box has secondhand parts then this can be where the slipping is coming from, see the photo.
If the crowns that go inside the drive hub are worn or damaged it will jump out of gear as well.
Its not hard to put it in gear, but under pressure it will jump out.
Too be clear the drive hub is pushed over the synchro (bronze peice) then the driven gear, its this driven part that needs to be in good condition to stay in gear.
I think damage to the cluster will only make noise (my opinion only)
These gearbox's are one of the simplest to work on, but some little things can make life miserable, as stated broken circlips and synchro energiser springs.
But jumping out of gear, is from my experience, damaged crowns and or sliding hubs.
#42
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Posted 09 July 2006 - 02:37 AM
There were also dodgey bearing kits some years ago that supplied wrong dimension circlips and front bearing/circlips that caused jumping out of 3rd and 4th gear.
#43
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Posted 09 July 2006 - 05:28 PM
#44
_lx5008_
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Posted 09 July 2006 - 06:23 PM
true true and true. are you going to repair it your self ?
just check the cluster gear teeth on 1st gear to make sure
there is no damage also.
jumping out of gear is a nother problem for many reasons
but you can fix them at the same time.
when i had the holden wreakers i use to recondition these every
day for years. i can almost to them with eyes closed lol.
like i say ive got shit loads of parts maybe enough parts to
put 10 gearboxs together.
any ways if you need something give a yell
just check the cluster gear teeth on 1st gear to make sure
there is no damage also.
jumping out of gear is a nother problem for many reasons
but you can fix them at the same time.
when i had the holden wreakers i use to recondition these every
day for years. i can almost to them with eyes closed lol.
like i say ive got shit loads of parts maybe enough parts to
put 10 gearboxs together.
any ways if you need something give a yell
#45
_lx5008_
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Posted 10 July 2006 - 05:54 PM
att bullitljv8 part numbers for gears
part numbers
let me know after you dismantle the box
cheers graham
part numbers
let me know after you dismantle the box
cheers graham
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