gearbox breather cap(stuck?)

Post by **Turbo Tonka** » Fri Jan 30, 2009 5:24 pm

just after some info on my gearbox breather for my sierra???is it ment to pop up and down/spring loaded like my transfer and diffs?i noticed it was stuck shut and that the little holes at the top sides of it were blocked so i used a pin to unblock these.

Could this possibly be the reasoning for my gearbox leak,maybe pressurising when hot?

if someone could tell me if its right or if i need to lever it off or something thatd be great thankyou,matt

Post by **jimbo jones** » Fri Jan 30, 2009 6:04 pm

pop the top of both that one and the transfer and put some fuel line on both ten run it into a T piece them up to the engine bay or into the quter pannel away from water do the same with the diffs

jimbo

Post by **Turbo Tonka** » Fri Jan 30, 2009 6:07 pm

thanks jimbo thats what made me start looking at all this in the first place,wanna go longer breathers.

so you are saying that outer piece ontop of the zook box comes off,its different to the one on my transfer,its just like a outer sleeve

Post by **Turbo Tonka** » Fri Jan 30, 2009 6:33 pm

finally got it out,was stuck hard as with age i guess,ill start getting some hose ready for breather,garden hose here in front of me fits the gbox one perfect

Post by **PJ.zook** » Fri Jan 30, 2009 8:17 pm

Running garden hose is a good idea for breathers, a lot of people do it.

If you are talking about gearbox oil leaking out on inclines, all sierras do it, it leaks out the gearshift lever hole, you cant really stop it.

Post by **Turbo Tonka** » Fri Jan 30, 2009 11:07 pm

cheers pj,na its leaking out the little slit thing in the bottom of the gearbox,more on a real hot day

Post by **just cruizin'** » Sat Jan 31, 2009 8:07 am

The slit in the bell housing?

If that is the case I'd pull the gearbox off and inspect, could be the engine rear main seal.

Post by **Turbo Tonka** » Sat Jan 31, 2009 8:39 am

yeah that one im thinking its coming from the box,not rear main.im just too lasy to pull it all back off

but yeah rear main,or front input?it smells gear oil

Post by **GRPABT1** » Sat Jan 31, 2009 12:58 pm

PJ.zook wrote:Running garden hose is a good idea for breathers, a lot of people do it.

If you are talking about gearbox oil leaking out on inclines, all sierras do it, it leaks out the gearshift lever hole, you cant really stop it.

Oh really? Awesome, here I was thinking I had a leak, thanks

Post by **Turbo Tonka** » Sat Jan 31, 2009 7:01 pm

yeah agreed,mine was just about on its side one arvo,and when we were disussing a recovery plan,we saw oil running from the box,down the tunnel,over the case and i thought id cracked the case too,haha but then later saw where it was from

Post by **PJ.zook** » Sat Jan 31, 2009 7:28 pm

Turbo Tonka wrote:cheers pj,na its leaking out the little slit thing in the bottom of the gearbox,more on a real hot day

If it is indeed coming out that little slit, then you have either a rear main seal or an input seal kaput, which is not a good thing, as if you get oil on youre clutch then you could lose drive at a most inconvenient time.

Post by **Turbo Tonka** » Sat Jan 31, 2009 11:24 pm

maybe that will be a good thing,then ill leave it out bush and forget about it.haha na i know i really need to pull it out and check i just cant be bothered,i just wanna drive the thing.i sometimes think rear main,by look of oil etc,then other times i think its gear oil by smell or whatever,only real way is to sack up and get her apart

maybe after tomorrows wheeling

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gearbox breather cap(stuck?)

gearbox breather cap(stuck?)

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