Jump to content
SAU Community

Recommended Posts

Hi all,

It looks like that a couple hours on the dyno were the straw that broke the camel's back....my front diff. On the way back from tuning the diff was emitting horrible sounds and after inspections it turns out we have a severely worn set of gears in it. The crown gear is missing all it's heat coating and well, is very worn down. Looks like a wrong batch of oil was used that was thin as water.

My mechanic in town has located one mob that has some 2nd hand diff innards for sale but with quite a price tag attached.

Do any of you guys know where else I could get some from, short of me putting up a WTB ad? Also, I take it that I could you gears from a 32?

....I have done a bit of "googling" but have mainly been coming across UK threads.

Thanks for your time gents

PS - car is currently in rear wheel drive "mode" with front prop shaft removed to save the diff from locking up completely or something horrid like that.

Link to comment
https://www.sau.com.au/forums/topic/403380-i-broke-my-r33-gtr-front-diff/
Share on other sites

Having swapped to Nismo front/rear before i sold my GTR - no word of a lie probably the best mods I did.

The car handled so much better there is no scale of measure i could put to it thats how good the improvements were over stock/worn diffs as they lock perfectly.

Ah ok, yeh I can imagine. It would have to be as awesome as putting in new coil overs or something like that!

Only problem is that I don't really have a spare $1500 to throw at it...may have to do it later down the track.

Sounds pretty nasty with your sump!

  • 3 months later...

Sorry about thread dig but could you please describe the sound when the front LSD broke?

Did it made clicking sound that you can feel while driving it?

Cheers

Sorry about thread dig but could you please describe the sound when the front LSD broke?

Did it made clicking sound that you can feel while driving it?

Cheers

It sounded like a wicked set of straight cut gears ;-) No clicking or vibrating...just noise because of how the teeth were worn (no longer helical etc)

Is yours broke?

It sounded like a wicked set of straight cut gears ;-) No clicking or vibrating...just noise because of how the teeth were worn (no longer helical etc)

Is yours broke?

I've no idea at the moment, waiting for friend to come over and have a look at it, hopefully it's just the CV like I originally thought.

We'll see...

Well if it's clicking then there's a fair chance it's a worn CV....does it click when your driving around sharp bends/corners?

If the diff is making a clicking or clunking sound then it's bound to be in really bad shape haha

It turns out it wasn't either CV or front diff, oddly it was coilovers... Clicking sound happen when I braked it.

Oh well, all that worrying for nothing!

I am looking for a GTR front crownwheel & pinion at the moment.

Too much power to the front wheels - have broken the teeth off mine!

Already have good LSD centre - just need the gears if anyone has them spare

after changing ratios.....................

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Have a look at that (shitty) pic I posted. You can see AN -4 braided line coming to a -4 to 1/8 BSPT adapter, into a 1/8 BSPT T piece. The Haltech pressure sender is screwed into the long arm of the sender and factory sender (pre your pic) into the T side. You can also see the cable tie holding the whole contraption in place. Is it better than mounting the sender direct to your engine fitting......yes because it removes that vibration as the engine revs out 50 times every lap and that factory sender is pretty big. Is it necessary for you......well I've got no idea, I just don't like something important failing twice so over-engineer it to the moon!
    • Yup. You can get creative and make a sort of "bracket" with cable ties. Put 2 around the sender with a third passing underneath them strapped down against the sender. Then that third one is able to be passed through some hole at right angles to the orientation of the sender. Or some variation on the theme. Yes.... ummm, with caveats? I mean, the sender is BSP and you would likely have AN stuff on the hose, so yes, there would be the adapter you mention. But the block end will either be 1/8 NPT if that thread is still OK in there, or you can drill and tap it out to 1/4 BSP or NPT and use appropriate adapter there. As it stands, your mention of 1/8 BSPT male seems... wrong for the 1/8 NPT female it has to go into. The hose will be better, because even with the bush, the mass of the sender will be "hanging" off a hard threaded connection and will add some stress/strain to that. It might fail in the future. The hose eliminates almost all such risk - but adds in several more threaded connections to leak from! It really should be tapered, but it looks very long in that photo with no taper visible. If you have it in hand you should be able to see if it tapered or not. There technically is no possibility of a mechanical seal with a parallel male in a parallel female, so it is hard to believe that it is parallel male, but weirder things have happened. Maybe it's meant to seat on some surface when screwed in on the original installation? Anyway, at that thread size, parallel in parallel, with tape and goop, will seal just fine.
    • How do you propose I cable tie this: To something securely? Is it really just a case of finding a couple of holes and ziptying it there so it never goes flying or starts dangling around, more or less? Then run a 1/8 BSP Female to [hose adapter of choice?/AN?] and then the opposing fitting at the bush-into-oil-block end? being the hose-into-realistically likely a 1/8 BSPT male) Is this going to provide any real benefit over using a stainless/steel 1/4 to 1/8 BSPT reducing bush? I am making the assumption the OEM sender is BSPT not BSPP/BSP
    • I fashioned a ramp out of a couple of pieces of 140x35 lumber, to get the bumper up slightly, and then one of these is what I use
    • I wouldn't worry about dissimilar metal corrosion, should you just buy/make a steel replacement. There will be thread tape and sealant compound between the metals. The few little spots where they touch each other will be deep inside the joint, unable to get wet. And the alloy block is much much larger than a small steel fitting, so there is plenty of "sacrificial" capacity there. Any bush you put in there will be dissimilar anyway. Either steel or brass. Maybe stainless. All of them are different to the other parts in the chain. But what I said above still applies.
×
×
  • Create New...