Post #26
too thick for a BE box, you want 75w80.________________________________________
need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets.
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displaying posts 26 to 38 of 38
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| Author | Subject: Loud clonking with plate diff |
 welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Bring on the Trumpets. |
 Posted 23rd Jun 2013 at 21:02
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allanallen
Seasoned Pro  Location: Buxton Registered: 01 May 2007 Posts: 1,399 Status: Offline |
Post #27
Should be 75w80. 75w90 is a bit thicker when hot, I use it in my rally car as the gearbox is a bit 'tired' and it appreciates thicker oil. It didn't make any difference to how the (tran-x) diff worked when I changed from 75w80. That diff doesn't clonk either as its set 'lightweight'.I'd personally go 75w80, can't comment on fully synth stuff mind as I've only ever used semi. ________________________________________ www.bridgecraftmotorsport.co.uk |
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Posted 23rd Jun 2013 at 21:08
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binkagti
Seasoned Pro  Location: canterbury Registered: 14 Oct 2006 Posts: 2,411 Status: Offline |
Post #28
But that is the same as standard pug oil which is what is in it now, wanted to try to make the box quite by changing oil________________________________________ TEAM Supercharged Rallye |
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Posted 23rd Jun 2013 at 21:15
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #29
I thought the clonks etc were caused by wear in the shafts, causing the diff the clonk.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 23rd Jun 2013 at 21:18
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allanallen
Seasoned Pro Location: Buxton Registered: 01 May 2007 Posts: 1,399 Status: Offline |
Post #30
And that IMO is what you want! No point trying to quieten it down when you don't even know how much pre-load it's running. I've got tran-x and gripper diffs both set lightweight with standard oil, no clunking! a few friends run the same with no issues. My other gripper clunks a bit but that's running loads of pre-load and as I've said already its just something you have to live with. ________________________________________ www.bridgecraftmotorsport.co.uk |
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Posted 23rd Jun 2013 at 21:23
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #31
allanallen wrote: binkagti wrote: Lol, he never use's the car anyway Too embarrassed I'd imagine   Cheeky buggers! ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 23rd Jun 2013 at 21:27
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allanallen
Seasoned Pro Location: Buxton Registered: 01 May 2007 Posts: 1,399 Status: Offline |
Post #32
welshpug! wrote: I thought the clonks etc were caused by wear in the shafts, causing the diff the clonk. Afaik it's the plates grabbing as the ramps load them up with lock on/wheels spinning different speeds, worn driveshafts and suspension components will exaggerate it though which is possibly what's happening here. I watched one of the 370z scholarship cars at coombe a few weeks ago, when it pulled out and turned 90degrees to head out the diff had that much pre-load it was making the inside wheel 'skip', that's the clonking but exaggerated, a lighter set diff will slip and you'll feel it 'clonk' whereas this was set so aggressively the tyre lost grip before the diff slipped, almost like the diff was welded! As gti6girl says, you could run proper diff oil but the gearbox might not appreciate that. Swings and roundabouts really. ________________________________________ www.bridgecraftmotorsport.co.uk |
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Posted 23rd Jun 2013 at 21:37
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pete_rallye
Seasoned Pro  Location: Yorkshire Registered: 12 Dec 2002 Posts: 5,253 Status: Offline |
Post #33
any recommendations for oil to use in a box with a tran-x diff? gonna be changing the oil in mine soon and not had a syncro box with a plate diff before... Oh, and mt btcc car runs Millers diff oil as used by the current btcc teams as that doesn't have to worry about syncros, and that diff clonks too! ________________________________________ Oulton Park in a BTCC 306 vid 1Oulton Park in a BTCC 306 vid 2 Lap of the 'ring |
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Posted 23rd Jun 2013 at 21:52
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gti6girl
Seasoned Pro  Location: Dartford Registered: 19 Feb 2007 Posts: 2,692 Status: Offline |
Post #34
Can I just add my 3 diffs clunk with normal oil badly and all gos away with the thicker oil, these were all brand new tooSome people say the LSD oil should not be used as its too thick for the box but its been years and and there's been no problems for me in 3 cars |
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Posted 23rd Jun 2013 at 22:21
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allanallen
Seasoned Pro Location: Buxton Registered: 01 May 2007 Posts: 1,399 Status: Offline |
Post #35
What's the shifting like nick? Are they a pain to get in gear until they're warm?Any ideas what your diffs are set to? As I say ive never had clunking with my lightweight gripper or tran-x using standard oil. ________________________________________ www.bridgecraftmotorsport.co.uk |
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Posted 23rd Jun 2013 at 22:33
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pete_rallye
Seasoned Pro Location: Yorkshire Registered: 12 Dec 2002 Posts: 5,253 Status: Offline |
Post #36
The reason I was told not to use proper diff oil is that it lubricates the plates in the diff, but that lubrication also knackers the syncros prematurely. That was what the guy at Millers motorsport oil department told me anyhow. They do also do a diff oil for use with syncros mind.________________________________________ Oulton Park in a BTCC 306 vid 1Oulton Park in a BTCC 306 vid 2 Lap of the 'ring |
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Posted 23rd Jun 2013 at 23:09
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gti6girl
Seasoned Pro Location: Dartford Registered: 19 Feb 2007 Posts: 2,692 Status: Offline |
Post #37
That's what I've always heard aswell but I'm a strong believer in tried and tested. We've got a gripper in a 306 rallye on bodies, that's been in about 3 years now. A tranx in my rallye which is also 3 years and my zf which I had for about 6 years. All boxes are going strong and its very easy to select gears |
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Posted 23rd Jun 2013 at 23:26
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gti6girl
Seasoned Pro Location: Dartford Registered: 19 Feb 2007 Posts: 2,692 Status: Offline |
Post #38
Allenallen - I can't remember what the tranx is set to, all I remember it was horrendous till I put kazz oil inThe zf was set up by ab Motorsport and the gripper was just fitted as it arrived |
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Posted 23rd Jun 2013 at 23:29
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