P-plater
Gearbox syncro problems
Ive got a 6 speed manual in my ute and 2nd gear has been an annoying problem lately. Whenever i try to change from 3rd to 2nd above 1600rpm the teeth chatter, and anything after that and it gets worse. Sometimes it just wont go in, as if i don't have the clutch in.
I know the syncro is probably worn to the point it needs a box swap. But i was wondering if anyone knew if getting a thinner oil has an effect on gear meshing?
I've got a mono 90w in currently.
Last edited by CRUSTIN; 08-08-2011 at 06:43 AM.
Originally Posted by Little Red VZ Go-Kart
1. Why would you want to floor it, or move it to the red line? Especially with the lack of airbags and ABS features!? What do you hope to achieve by that??Originally Posted by HoldenV8
give everything a spray with wd40 wheels brakes that should fix the squeaks
Donating Member
I laughed so hard when I saw this. The 6 speed box has a terrible habbit of doing this. Especially under load. I put a bandaid on this problem with thinner oil and putting an intercooler on it.
I used to be known as Crunch because of its annoying habbit of making noise when going from 2nd to 3rd.
P-plater
Woops, i mean 3rd to 2nd. 2nd to 3rd always crunches. And its not just a crunch, its a full grind.
Originally Posted by Little Red VZ Go-Kart
1. Why would you want to floor it, or move it to the red line? Especially with the lack of airbags and ABS features!? What do you hope to achieve by that??Originally Posted by HoldenV8
give everything a spray with wd40 wheels brakes that should fix the squeaks
Alloytec Racing
i have been having the same problem.. complete box swap or is it repairable?
Life starts at 200km/h
I noticed you mentioned the clutch not feeling as if it wasn’t operating.
Wouldn’t hurt to flush & bleed the clutch system with new fluid.... then you can rule that out.
Penrite make oil recommended for the 6 speed called SIN Manual Trans, did wonders for a workmates SV6.
Can’t say whether this might cure the problem, but it’s worth having a look at.
P-plater
Thanks fellas, ill try the gearbox oil first, see if that works. Ill post the results.
Originally Posted by Little Red VZ Go-Kart
1. Why would you want to floor it, or move it to the red line? Especially with the lack of airbags and ABS features!? What do you hope to achieve by that??Originally Posted by HoldenV8
give everything a spray with wd40 wheels brakes that should fix the squeaks
Have been having the same problem going from second to third, Holden swapped the box. But 100 k's later it was back but just not as bad ( yet), this has holden scratching their heads, still tying to figure it out
P-plater
If its just a light crunch, its normal.
Anyway, i chucked in 80w90 castrol. Perfect, almost.
Originally Posted by Little Red VZ Go-Kart
1. Why would you want to floor it, or move it to the red line? Especially with the lack of airbags and ABS features!? What do you hope to achieve by that??Originally Posted by HoldenV8
give everything a spray with wd40 wheels brakes that should fix the squeaks
Right Foot Action
a light crunch is normal?????
GRA = REAL HP
is the box fitted with a rip shifter or a std shifter ?? are you race changing the gears or nursing it along ?? can use Castrol TQ DIII for thinner fluid but by the sounds of it the damage is already done and time for a rebuild $$$
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