Jump to content
SAU Community

Recommended Posts

Hi guys,

As recommended on the site, I changed from a VMX80/nulong G70 combo (as the box started crunching and becomming really notchy particually in 2nd and a little in 4th)

Anyway I warmed the box up, drained the warm oil and left it over night to clear all the nulon out.

Put the smurfs blood in and took it for a drive, I reckon the gearbox felt instantly a little more slick but the crunching was pretty much the same.

How long generally does it take for this stuff to have the full effect. Have done about 150km so far.

Also I know its a how long is a piece of string question but what is a full gearbox rebuild worth?

Cheers

Hi guys,

As recommended on the site, I changed from a VMX80/nulong G70 combo (as the box started crunching and becomming really notchy particually in 2nd and a little in 4th)

Anyway I warmed the box up, drained the warm oil and left it over night to clear all the nulon out.

Put the smurfs blood in and took it for a drive, I reckon the gearbox felt instantly a little more slick but the crunching was pretty much the same.

How long generally does it take for this stuff to have the full effect. Have done about 150km so far.

Also I know its a how long is a piece of string question but what is a full gearbox rebuild worth?

Cheers

mmm.. generally if an oil is going to make a difference then it will do so with a few 100m from the workshop... I'd say you have bigger issues unfortuntely mate.

You might be better off just sourcing another 2nd hand box perhaps? (always a risk I know..)

foe mine it was when driving the car for an hour till the oil gets hot and does its job,,, normally this oil should solve the problem or at least help it..in your case no....maybe its time for a second hand gearbox iam afraid

yeah its definately much better but not perfect. just being pedantic, it is still the same when cold (but if i double clutch its ok) is this normal? or do people have no probs when cold who did beforehand? when warm its pretty good now

mine started working straight away, the notchiness it had before the redline shockproof went away and 5th doesnt crunch at all, even when im on the motor way going from 4th to 5th at high revs....my box is now smooth as silk :blush:

like others have said, if you dont see results with the shockproof, your syncros are on there last legs

what am i looking at roguhly for a new box? if I look after it how long can I drive it for like this?

also someone said that the reason this happens (the notch slash light crunch is because the nulon teflon treatment coats the synchros, now they are so slippery there is not enough friction for them to work properly and hence they crunch. this really only started since i put the nulon in. i have since drained it and put the redline in, willthe nulon eventually break down and go away?

Edited by TUF250

Not sure which box you are running, but I know a RB26 gearbox rebuild with new genuine Ni$$an parts is about the $3300 mark. Best go get yourself a 2nd hand box in reasonable conditions and fill it with Smurf yoghurt again.

having said that, I spent $9k on a gearbox :D

Not sure which box you are running, but I know a RB26 gearbox rebuild with new genuine Ni$$an parts is about the $3300 mark. Best go get yourself a 2nd hand box in reasonable conditions and fill it with Smurf yoghurt again.

having said that, I spent $9k on a gearbox :down:

yea rb25 gearbox should cost not much less to overhaul than the gtr box as they are almost identical internally except for the rb26 box having the transfer case. anyone know if theres there any 3rd party synchro's available for nissan gearboxes?

i got 2 prices for 2nd hand gear boxes that are apparently low kms, for 1800 each, tbh im not spending that on a gearbox that might not be so great unless it has a warrenty

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


  • Similar Content

  • Latest Posts

    • It is a kunfine Android screen . Does anyone know the wirering diagram of the fuga ??
    • just an update to this, poor man pays twice  Tried sanding down the pulleys but it didnt do the trick. Chucked another second hand alternator in the na car which I got for free off my mate and its fixed the squelling. Must have been unlucky with the bearings.    As for my turbo car, I managed to pick up a cwc rb alternator conversion bracket + LS alternator for 250 off marketplace, looked to be in really good nick. Installed it , started the car and its not charging the battery.... ( Im not good with auto elec stuff so im not sure if this was all I needed to do but I verified such by using a multimeter on the battery when the engine was running and I was only getting 12.2v )   I had to modify the earth strap for the new LS alternator , factory earth strap was a 10mm bolt which did not fit the bolt on the LS alternator which was double the size so I cut it off , went to repco bought some ring terminals that fit, crimped it onto the old earth strap and bolted it up to the alternator , started the car and same issue. Ran like shit and was reading 12.2 at the battery.  For a "plug and play" advertised kit thats not very plug and play but alas.  My question is , am I missing something ? Ive been reading that some people recommend upgrading the stock 80 amp alternator fuse to a 140 amp but I dont see how that would stop the alternator charging especially at idle not under load.  Regardless ive pulled it out and am going to get it bench tested by an auto elec tomorrow but it would be handy to know if ive missed something silly or have done something wrong.   
    • My wild guess is that you have popped off an intake pipe....check all of the hoses between the turbo and the throttle for splits or loose clamps.
    • Awesome, thanks for sharing!
    • To provide more specific help, more information is needed. What Android screen? What is its wiring diagram? Does the car's wiring have power at any required BAT and ACC wires, and is the loom's earth good?
×
×
  • Create New...