60 replies to this topic

[76lxhatch]

Not to mention that its a lot easier out, Banjos are great as you can just put them in the vice

[hanra]

You can swap the yoke with the centre in place, but if its leaking your gonna have to take it out to replace the gasket anyway.

Yeah I know its a real lose lose situation. I supplied the diff shop with a complete gasket kit, but its been leaking ever since I put oil in it. 0klms on the clock...

Not to mention that its a lot easier out, Banjos are great as you can just put them in the vice

Or the f*cking bin.....

Edited by hanra, 11 September 2012 - 02:50 PM.

[hanra]

Went into the shop today and explained the situation. I'm going to pull the centre out and have them swap the yokes over. He seems to think he wouldn't have used a gasket for the centre to housing. Would of used goop to seal it up. Can't explain why it would be leaking. No word on costs or anything yet.

So now I'm waiting on the eBay V8 yoke to show up and hope its the right one. Then I'll pull the centre out.

Any tips I should know about when refitting?

[76lxhatch]

Maybe they did use the gasket instead of goop and that's why it leaked...? Being so thin the Banjo housings tend to warp a bit and the gasket face can't necessarily be relied on to be perfectly flat, I used to use a gasket with goo on both sides to take up any extra gaps. Otherwise normal rules apply - clean surfaces, only do it up finger tight until the goo sets a bit etc

Hope you get it all back together with no more speed bumps

[hanra]

The mechanic said he dosnt use gaskets cause they leak.



Are the axle baffles a standard thing?

[S pack]

G/day Brad,
Hahaha, he doesn't like to use gaskets cause they leak!!!

Diff housing baffles might be std in SL/R 5000 but as I don't know much about them I can't say for sure. It would figure they could have baffled housings cause the XU1 had them.

Interesting that you have 3.55 gears in a 3.08 carrier and a 3.08 banjo diff housing.

[hanra]

The housing originally had a 3.08 open centre in it. I took the entire assy out of the car and gave it to the mechanic. He said SLR 5000 should have fine spline LSD.

So I hunted around for a centre and came up with this one fine spline LSD 3.55. He did say he had to change bolts or studs or something to make it fit. So I expected for him to fit the centre in and away I go, but he has fitted the 6cyl yoke that came with that centre and used all the other parts that were supplied with my original rear axle assy.

How did you determine it was a 3.08 housing and carrier? What are the identifiers? And I was led to believe the baffles are a standard thing on SLR but I had no idea what they looked like????? Wasn't sure if all banjos had those plates there??

[S pack]

The housing originally had a 3.08 open centre in it. I took the entire assy out of the car and gave it to the mechanic. He said SLR 5000 should have fine spline LSD.

So I hunted around for a centre and came up with this one fine spline LSD 3.55. He did say he had to change bolts or studs or something to make it fit. So I expected for him to fit the centre in and away I go, but he has fitted the 6cyl yoke that came with that centre and used all the other parts that were supplied with my original rear axle assy.

How did you determine it was a 3.08 housing and carrier? What are the identifiers? And I was led to believe the baffles are a standard thing on SLR but I had no idea what they looked like????? Wasn't sure if all banjos had those plates there??

3.08 diff housing uses two long bolts at the bottom, one for the drain at the very bottom and the other one is at the 7 o'clock position. All the others are short studs. I see yours has had a long bolt inserted to form a long stud. To do this someone has drilled out the thread in the bolt hole and pressed that bolt in, unless this is how the LH housings came ex factory.

A 3.08/2.78 banjo carrier has the large casting bosses at the bottom, hence the need for the two long bolts.
If you have the 3.55/3.36 carrier compare it to the 3.08 carrier and you'll see the difference. The 3.55/3.36 uses all short studs and a short drain bolt.

I'm just wondering if that long bolt inserted to form a stud is secured firmly enough in the housing to allow the nut to be torqued up correctly.
Just a thought that if the bolt is spinning before the nut is tensioned up to spec then this may account for your diff oil weep.

I assume only the SL/R 5000 diff housings got the baffles.

Edited by S pack, 16 September 2012 - 04:26 PM.

[hanra]

Nice info there Dave. Thanks for pointing all that out.

If a ratio change was wanted, is it just a matter of changing ring gear and pinion? Or are there other things that need to be carried out?

[S pack]

Nice info there Dave. Thanks for pointing all that out.

If a ratio change was wanted, is it just a matter of changing ring gear and pinion? Or are there other things that need to be carried out?

Ring gear (crown wheel), pinion and case. The case is the component the crown wheel bolts to and contains the star gears, springs and LSD cones.
There is a slight dimension difference in the case flange offset where the crown wheel bolts on for a 3.08/2.78 banjo compared to a 3.55/3.36 banjo. The reason for this is differences in the size of the crown wheels for the different ratio sets.

Edited by S pack, 17 September 2012 - 12:43 PM.

[hanra]

Ahhhhh. Your a bloody smart fella Dave!!!!

So with this setup, I could only easily go to a 3.36, which would involve changing the crown wheel and I guess the pinion also?

[hanra]

Whats everyone's opinion on using a gasket or not for the diff????

Should I use just this stuff???? And NO gasket?

[hanra]

So would it be ok just to use the Loctite by itself instead of a gasket??? I honestly never want to pull this centre out ever again!!!! So I don't want it to leak. I've got a gasket here also. But not sure if I should use it? Or both???

[hanra]

Righto. I'll just have to deal with the swearing later on down the track trying to separate the seal if/when it goes bang....jo.

Funny, it had blue sealant and gasket used originally. And it leaked.

Edited by hanra, 21 September 2012 - 06:56 PM.

[hanra]

Hope this is ok to use?

[hanra]

Cool. I used the fancy synthetic stuff in the LSD of my XR6 Turbo ute but I think the banjos just use the non fancy LSD oil?

[hanra]

Would you really want to be seen in this?