Jump to content
SAU Community

"play" In The Driveline

s13-steve
 Share

Recommended Posts

Missileman Veteran

Missileman

Posted
Posted

Same problem here in an R32 GTR - clunks from the rear when driving harshly, so I put it over the pit and it has a ridiculous amount of play which we isolated to the rear diff. Next, is to remove the centre and get it rebuilt at a shop.

On that does anyone know a good place to go for a diff centre rebuild in Perth?

Do report back what they did to fix it and the cost, I have a similar issue with my R32 gtst.

Mike.

  • 2 years later...
V28VX37 Veteran

V28VX37

Posted
Posted

Resurrecting an old thread.

I'm experiencing some play in the driveline after my recent manual conversion, two different types:

  • There's a slight but noticeable 'clunk' on gear change (clutch-in). This happens most of the time but not always, and doesn't seem to be related to a specific gear or speed. This is the one I'd like to get fixed.
  • There's also slight 'slack' when changing over from accel to decel or vice versa. This feels quite similar to other manual cars I've driven but I'm not sure how 'tight' it's meant to be with an RB25DET gearbox?

I had a look under the car, I could rotate the front part of the tail shaft probably 2mm by hand, the rear part was harder to move. This is with the car in gear and handbrake on.

Which part of the driveline should I look at first?

What's the best way to check the condition of the tail shaft centre bearing?

GTSBoy Grand Master

GTSBoy

Posted
Posted

From your symptom description I would suggest the centre bearing the tailshaft would be #1 suspect.

In reality, I find that it is every single point in the driveline adding up. I have play in the tailshaft, some in the diff, some in the rear CVs and some in the rear hubs. Not enough at each point to be concerned about, but added together they create a hell of an annoying clunk in my driveline.

V28VX37 Veteran

V28VX37

Posted
Posted

Thanks GTSBoy, I'll start from there! I wouldn't be surprised either since the tailshaft is a combination of my R34 sedan rear half and an R33 coupe front half from the wreckers.

Just a couple of more observations from today:

  • There's a slight but noticeable 'clunk' on gear change (clutch-in). This happens most of the time but not always, and doesn't seem to be related to a specific gear or speed. This is the one I'd like to get fixed.

This seems to come from behind the driver i.e. centre bearing, diff, or drive shafts. Centre bearing is currently the prime suspect.


  • There's also slight 'slack' when changing over from accel to decel or vice versa. This feels quite similar to other manual cars I've driven but I'm not sure how 'tight' it's meant to be with an RB25DET gearbox?

This seems to be more in the front side so clutch or the gearbox itself. I reckon it's the latter.

I'm not too fussed about this one but the clunk on gear change is more annoying so need to get that sorted.

  • 2 weeks later...
V28VX37 Veteran

V28VX37

Posted
Posted (edited)

I just checked this again with handbrake on and gearbox in neutral. There's about 8mm of play in the diff, measured on the outer ring where the tail shaft joins the diff. Not sure if this is a little or a lot?

I also did the 'diff test' and opposite wheel rotates the same way when turning so it's definitely is viscous diff. Might be time to upgrade...

Edited by V28VX37
  • 8 years later...
elohim_imanu Contributor

elohim_imanu

Posted
Posted

Most of my play is in the half shafts. What do people do about this? OEM are pretty expensive. Like $1,600 each.

I can rotate a wheel about 15-20mm at the outside of the tyre, is this too much?

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      I need more than help to finish my R33

      By GTSBoy · Posted

      Don't use that manifold. Please don't use that manifold. Sunk cost fallacy is not worth the later pain. None of these will be relevant to the change that will come from the different turbo and manifold. As in, the effect of the exhaust will be nil, regardless of what else is changed. And all the cam and fuel system stuff is not changing either way, so has no effect. The turbo and manifold (and to a small extent the wastegate)....big change.
    • marni
      I need more than help to finish my R33

      By marni · Posted

      Just wanted to say thank you for your input   my man (lead mechanic by trade) and I have done a heap of work as you can imagine just to make the hot side work with the dump pipe, stupid massive intake on turbo, trying to get the waste gate on was not fun.  I’m kinda getting to the point where I don’t know if I try and make this work and not throw all this cash and time away or do I scrap the lot and start again? the Apexi I’ve got was tuned for a few slight differences:   Tomei pon cams (mine are stock neo) Turbo smart 38mm external waste gate (mines 45mm replumbed) with stainless screamer pipe  3inch turbo back exhaust with high flow cat Sard 800cc top feed injectors Sard adjustable fuel pressure reg    
    • joshuaho96
      My BMW 335i

      By joshuaho96 · Posted

      Out here E90s are the cheapest way into a sporty-ish car because everyone knows just how expensive the repairs can get. 8-10k USD for an automatic 335i. 
    • cobo_11
      My BMW 335i

      By cobo_11 · Posted

      Noted. Have noticed BMW are more 'high maintenance' for sure. They've attracted my attention as I think the used car prices seem reasonable vs other options, and the extra quality overall vs a commodore / camry / corolla or similar of the same vintage is appealing, especially the interior, and they are more on the sporty side whereas the others mentioned can be more cruising or economical A-to-B only.
    • cobo_11
      My BMW 335i

      By cobo_11 · Posted

      Haha yeah I know, this is SAU after all, why are we talking about BMW's of all things!? I hear you on the 'don't have to worry about it' side of things. Having been fortunate enough to be have been able to buy a brand new motorbike or two...never really enjoyed them as much as I'd have liked as you worry so much about where you park it, will it get scratched, stolen, attempted theft, knocked over, etc...and yes dirty. Older less valuable bikes you can just go where you want and park it wherever and not really worry that much in comparison. And who cares if it gets dirty! Never owned a V8, and have had my eyes on VE / VF commodores for years but with their prices climbing so high, the M3 has come into focus more as prices are much closer than I've ever seen...is it a potential contender now?...of course need to factor in the S65 'maintenance' especially and like you said general M car 'tax'. One can dream anyway. But more on the reality front - did read the whole 330i thread as well and was a great read too, both threads enlightening as I've never even driven one of these cars! I do recall 330i didn't seem to have the same amount of issues for almost the same car (turbos and related differences notwithstanding)...perhaps down to getting it earlier in it's life so looked after better than the 335i? Perhaps so as your 130i has been good and quite similar, so finding a car that's been looked after well is the especially-crucial-BMW-first-step.
×
×
  • Create New...