Does This Sound Like A Synchro Prob?

[GTR_STEALTH]

When going from 3rd to 4th if i try slam it in it crunches. But if i ease it in gently its ok and doesnt crunch.

If it is the synchro, am i doing damage to the gear when it crunches?

Im gonna be looking at putting some Redline Shockproof in as it seems every thread recommends it, but i would also like to know how much it would it roughly cost to get someone to fix ALL synchro's if its needed?

All advice appreciated.

Edited June 27, 2007 by GTR_STEALTH

[LoNg_ShaNks]

I purchase my R32 GTS with gearbox issues. I had it checked out and the specialist advised the main bearing was pretty much farked and the 2nd and 5th gear synchro's needed replacing. It cost me approx $780 with 1yr/20Km warranty. IMO i dont think it will be cheap.

good luck

[Bl4cK32]

Why do u need to slam it? Its a nice way to kill a box as u are finding out.

It is syncros, and usually when they are replaced they only do the ones that require it.

I had a quote from nissan a while ago, and all syncros + parts was about $550. Might have gone up since, or u might not be able to get all parts.

[Brockas]

Same issue in my GTR. Sounds like a Synchro issue.

Mine only crunches when changing into 4th past 5000rpm, so it's not a major issue driving daily ( as thats about 130km/h with the os gear set )...

[GeeTR]

Had same issue, plus 2nd > 3rd shift crunch if moved too quick (not fast enough to be branded abuse)

Redline shockproof cured all, plus allowed me to actually get it into 1st when cold and rolling at walking pace.

Have heard on NS i think, that Redline can harm the box. I don't believe this though.

M

[Rekin]

Give these guys a call;

http://japanesegearbox.com.au/

They quoted me $990 swapover for a fully rebuilt gearbox r32 gtst

and $150 to remove/refit new box

edit;

Redline doesnt fix things, it just makes the noises go away. You're still causing damage to the box just your extending its life with a temp fix with redline.

I had redline put in 15,000km ago and the problems have re-emerged.

Cheers

[LoNg_ShaNks]

thanks for the info Rekin

[GTR_STEALTH]

Ok sweet, thanks guys.

I'll give them guys a call next week

[heller44]

Have you changed the oil since you bought the car?

I had exactly the same symptoms, weak syncho's into 4th with a quicker shift at higher revs. Changed oil to vmx80 and nulon g70 treatment. Now it is very nice to use.

I was advised against the redline lightweight shockproof as the chemical rating(?) of the oil eats away at the material the synchro is made of.. heard this from a number of sources.

james.