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

    • I mean, I can confirm the TPS is at 100%.... I can confirm when we installed the TB and setup the cable that the TB was indeed fully open at max pedal travel.. the same 'curve' (WRT MAP vs MAP) existed with the previous setup/TB/manifold as well... No, we did not do a run with no intake connected. I would love to go back in time to do such a run to rule out the intake. It would have also been good to do a run with the airbox lid off. There's a test there where increased IAT vs more available air could be a positive tradeoff. I remember taking the lid off my R34 Turbo setup back in the day and noticing a monster increase, even if IAT's did go up. Could be similar. Hard to test unless I find a very deserted road. 
    • That's actually encouraging to be honest. my motor was rebuild many years ago but it's probably done less than 30,000kms and fucc all limiter or drift, majority street / drag / roll racing. It'll be fine 💪🏼 I don't even have lines or a can for the cam breathers installed yet, there is zero oil residue or splatter on or around them, it drives beautifully so it seems healthy. Just a ticky lifter, yet they're almost brand new oem genuine Nissan and haven't done many kms at all...
    • Have you confirmed the throttle body goes to WOT (and stays there) during the run?
    • I'm having a problem. I think it was mentioned above somewhere but can't see it.  I'm stuck in the cycle of, sand, filler, low spot again, put filler, sand, low spot again, now i put filler again and a thicker portion which seems to have helped but I got low spots in other areas. In the image. Circled in red thats where the original low spot was and the shape is the same as the red out line. I've more or less fixed that (still low spot up the top but now I have low spots where the green circled part is.  Is likely the issue that I didn't start with a course sand paper? I sanded the filler with 240 to reduce the risk of not going to far but maybe the issue is that I'm only taking off enough material to remove some of the filler but not the high spots. I now started sanding with 120 and I think I'm seeing a difference. I did fix one dent the other 2 are f**ked and seems like I made another low spot which is indicated by the furthest green circle on the left handside. Any thoughts and solutions?   Also second image. All of these rock chips, can they be filled in with primer or do i need to fill them all with filler/putty? So many rock chips on mine lol.
    • Well, I had an Edward Lee's special edition odo windback car/motor with a RB25DET S2 and I put down 372kW with a good amount of track abuse for 1.5 years before the ring lands decided it didn't want to stick around anymore 🥲 But probably didn't help I kept on smashing try limiter on the track and a few skid pans.
×
×
  • Create New...