Jump to content
SAU Community

Recommended Posts

Hi Guys, I've got a fully rebuilt PPG 1st to 4th helical syncro box with a reocurring problem, it keeps jumping out of 3rd gear under acceleration, the builder keeps blaming PPG with what seems like a load of waffle, its waiting for its 3rd rebuild under warranty, so this will be the 4th time he's rebuilt it, I'd have to assume its got him f**cked.

Any ideas on the problem ?

Link to comment
https://www.sau.com.au/forums/topic/378361-ppg-helical-syncro/
Share on other sites

Is it a ppg or a par box? If it's jumping out of 3rd it could be a clearance issue on the shaft or a ball and detent issue. Who is building the box? If you don't wish to name pm me.

Its a ppg box with all new parts, 1st to 4th gearset with ppg main billet shaft.

The builder has told me he has replaced 3rd gear to a ppg 3rd gear upgrade spec? and sent certain parts back to ppg for re-machining? (but it still jumps out of 3rd gear) sounds a bit odd to me since these parts are case hardened and he has had a history of not telling the truth.

I'm not hear to hang shit on him as I'm over that and he's still trying to rectify the problem, I just think he's clueless and this seems never ending.

Thanks Allen, PM sent.

i strongly suggest contacting ppg themselves and talking the issue through with them as well. They are usually more than helpful and are always looking for ways to improve so even though it may seem like criticism, its right up thier alley mate. best of luck and PM replied ;)

i strongly suggest contacting ppg themselves and talking the issue through with them as well. They are usually more than helpful and are always looking for ways to improve so even though it may seem like criticism, its right up thier alley mate. best of luck and PM replied ;)

Yer that was my next step, the gearset was purchased from ppg by the builder, I've found companys dont like to discuss things with someone else's client but it may be the best solution in this case as its dragging on.

Thanks for your help and your PM, I'll let you know the outcome. Cheers :thumbsup:

Has the 3rd gear synchro hub assembly been replaced? Very common cause of a gearbox jumping out of gear...usually happens on deceleration though.

The gearbox has all new everything Birds, right through, its time I speak to ppg to cross refrence what the builder is telling me.

I have a feeling it could be an interesting conversation. Cheers :thumbsup:

Hi Guys, I've got a fully rebuilt PPG 1st to 4th helical syncro box with a reocurring problem, it keeps jumping out of 3rd gear under acceleration, the builder keeps blaming PPG with what seems like a load of waffle, its waiting for its 3rd rebuild under warranty, so this will be the 4th time he's rebuilt it, I'd have to assume its got him f**cked.

Any ideas on the problem ?

Mate get rid of the PPG crap, I had 2 years of drama's with them.... I would not recommend anyone using PPG products.. Your builder is probably right..

Sad but true.

Hi Guys, I've got a fully rebuilt PPG 1st to 4th helical syncro box with a reocurring problem, it keeps jumping out of 3rd gear under acceleration, the builder keeps blaming PPG with what seems like a load of waffle, its waiting for its 3rd rebuild under warranty, so this will be the 4th time he's rebuilt it, I'd have to assume its got him f**cked.

Any ideas on the problem ?

Mate get rid of the PPG crap, I had 2 years of drama's with them.... I would not recommend anyone using PPG products.. Your builder is probably right..

Sad but true.

Mate you could be right but I haven't spoken to PPG yet, only the builder who I've found is not big on telling the truth so I should give them a chance.

I spoke to some guy at PPG and he said Mark will call me back so time will tell, I'm looking forward to speaking with him to get a better picture with whats going on hear or if they even know of my problems.

Sorry to hear about your drama's, we all like to get what we paid for and shouldn't settle for less. :thumbsup:

  • 4 months later...

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


  • Latest Posts

    • Hi all, Restoring r33 series 1 rb25det. All the heater hoses were on their way out, have replaced them and put it all back together. After testing I noticed a small leak from behind the head on the actual metal water line to the turbo when cars warm. I tried running a longer hose over it but it kept leaking...   I am about to take the (stock) manifold off again😔 to change the water line does any one have any lines they recommend? I was looking at Aeroflow Turbo Oil & Water Line Set but not sure what everyone else recommends. Car is completely stock but want to upgrade turbo eventually. it looks like ill have to disconnect a lot just to replace these lines so if there's anything else recommended to do please let me know. Thank you in advance!
    • From memory, on the R33 GTSt at least, while everyone says "It's not adjustable", I found when I changed clutches in mine, it just needed a small adjustment on the rod length. But be very wary here, as you could end up trying to push the pushrod in the master too far, or blowing out the slave.   Most likely though, if the master/slave isn't bypassing internally or leaking out, then the throw out is the wrong height compared to the fingers on the clutch, so when it moves to disengage the clutch, it isn't 100% disengaged. You can check part of this out too by jacking the car up, having the engine running, put your foot on the clutch and try to engage 1st gear. If it goes in pretty easy (Compared to the ground) and/or the wheels start turning a fair bit and it takes a bit too much brake pedal to bring them back to a stop, this is likely the issue.  I'm not sure if you can adjust the height of the forks etc in these though, it's been that long since I've touched any RB gearbox.
    • That's all good, I thought I was missing some interesting feature! Maybe @PranK can double check if that is something that is meant to be operating or not.
    • I hope that is not something that bad. From what i remember he said that only first gear is "hard" to get in and that he has couple of ideas what to try next but idk 😕  hope it is not gearbox out. I will let you know.
    • If it's not the hydraulics, it is probably gearbox back out. Usually as per @Duncan's post, or otherwise associated with not getting the throwout fork positioned correctly. All the way up to catastrophically bolting shit back together without it being aligned properly and wrecking the clutch/input shaft/flywheel/something else.
×
×
  • Create New...