GEARBOX PROJECT WANTED RIP (rust in peace)

[Spike]

there is a post about unreliable gearboxes thats active at the mo, and not wanting to just sit back decided to make a few enquires as to reliable rebuilds and what is the problem. i had a chat with a couple of guys that have a lot of experience with bike gearboxes and asked if they would take a look. basic answer is yes but not right now as we are in the middle of a race season, when thats over, no problem.
so, i am looking to buy a ph2 gearbox thats seen better days, i dont want one thats broke in half but one thats noisy but serviceable. i am prepared to pay the going rate, whatever that is and will cover costs on parts etc myself, with a hope to finding whats wrong with these and organising someone to repair these at a reasonable price if it can be done, also if there are any mods that can be done in the process these will be looked into, like uprated bearings etc.
so, what price is a reasonable price and has anyone got one?

 

[Brad]

Thats a very nice thing for you to be doing to help everybody out, I wish i had the time and money to also do things like this well done

 

[RUSSO]

Good man Spike, hats off to you Sir :salut:
Try ringing Renault Breakers, Accrington
Speaking with the lads in the yard and seems the owner has a complete Ph2 damaged and stored at 'the farm lock-up'. No idea of state of the car or box but might be worth a call :approve:

 

[Spike]

Good man Spike, hats off to you Sir :salut:
Try ringing Renault Breakers, Accrington
Speaking with the lads in the yard and seems the owner has a complete Ph2 damaged and stored at 'the farm lock-up'. No idea of state of the car or box but might be worth a call :approve:

have you spoke with these guys? i also have a complete car thats had a bump but i feel to strip a box thats ok is wrong as it will not show the specific defects that need to be addressed.

 

[RUSSO]

Spoke to the guy's in yard that has 3 broken vees on at the moment, one Ph2 has engine & box in but IIRC the box / gears are all exposed!!!!! Not good. But they were telling me of the other Ph2 in the farm yard thats damaged and 'complete' so I've no idea of the state of the box or car never seen it. Just a thought Spike, these guys do exchanges on boxes so may have swapped one at some time.

 

[taipan]

Double thumbs up Spike! Keep me posted how you get on. Will be going down the transplant route myself but be great to have a genuine fix available for others wanting to retain standard hardware

 

[Steve-V6-D61]

Hi Spike


When I had a new casing put on my gearbox spent some time with the guy fitting it.

The box is basically shit, his words not mine, its just too weak, there fitted on Vauxhall and Nissan vans as well as other cars, he will not put a guarantee on one if the van tows a trailer as he say's it WILL break it.

He said the basic problem is wear in main bearings supporting the gear shafts. this then results in end float, ( noisy gearbox stop using at once) this then results in bulk ring wear and then the selector fork gets damaged, then its buggered due to brass filings in the oil.

The main problem is that our gears ratios are a different to all the other boxes, so gears have to be brought through Renault, Ouch, plus a set of bearings and labour.

The other shit thing about the box is there no adjustment for the main bearings supporting the diff, so that means no end float adjustment for it, he said that’s why there is a lot of back lash in the box, this also increases the shock loading on the gears and bearing as the backlash loads and unloads as the throttle is applied and taken off.

Basic problem is that it was designed for a lot less power originally and I never going to be bomb proof with 255 bhp going through it, he was surprised they did not fail all the time.

He had 30 PK4/5/6 in bits so he knew his stuff, he set up the the end float on the main shafts by feel, changing the shims to suit, he said you can not do it any other way as you can not measure it with the cases together.

Hope that a bit of a insight.

Steve

 

[Spike]

STEVE, the old rs turbo box had a scimilar setup on the diff, but was moded from no adj to an adj shim stack. my thoughts are along a scimilar line but poss trying a different bearing.
i have had a tentative look but dont want to give too much away on here.
thanks for your input, now find me a box!

 

[blakey]

Like it Spike, good luck with you project, there will be many intersted in the outcome.

I would rather look at other gearboxes, ford, vauxhall etc and see what can be adapted via a bell housing adaption plate. drive shafts etc can be changed/modifiyed. There must be a gearbox out there thats strong and of simlar size.

Both options are expensive and fustrating, a strong box from new is what we wanted.

 

[taipan]

I'm looking into gearbox transplants. Concentrating on the M66 Volvo gearbox at the moment. There will obviously be a fair bit of customising to do with any transplant but at worst it will be as expensive, if not slightly less expensive, than the one or two rebuilds the current box seems to require.

Wil let everyone know how I get on.

 

[Spike]

I'm looking into gearbox transplants. Concentrating on the M66 Volvo gearbox at the moment. There will obviously be a fair bit of customising to do with any transplant but at worst it will be as expensive, if not slightly less expensive, than the one or two rebuilds the current box seems to require.

Wil let everyone know how I get on.

Interestingly, many volvo gearboxes and their associated parts are actually made by renault.

 

[Cold fusion]

Interestingly, many volvo gearboxes and their associated parts are actually made by renault.[/quote]

But they will be made to Volvo specs not Renault.

 

[taipan]

Evidently the quality controls exacted by Volvo are a bit higher than those used by Renault themselves!!

 

[Spike]

Interestingly, many volvo gearboxes and their associated parts are actually made by renault.

But they will be made to Volvo specs not Renault.[/quote]

Nigel,I think you are getting APS, thats anal partnumber syndrome. why make a ridiculous comment like that, all it does is riddicules the forum and its members. if its a reno box or part its made to reno spec, thats it!
just how can a std renault part be made to volvo spec???????????????

 

[Spike]

Good man Spike, hats off to you Sir :salut:
Try ringing Renault Breakers, Accrington
Speaking with the lads in the yard and seems the owner has a complete Ph2 damaged and stored at 'the farm lock-up'. No idea of state of the car or box but might be worth a call :approve:

have you spoke with these guys? i also have a complete car thats had a bump but i feel to strip a box thats ok is wrong as it will not show the specific defects that need to be addressed.

hi all, have spoke to these guys Renault Breakers, Accrington very helpful, they have no broken gearboxes as they recon them all. they are in stock at an amazing £650 +vat, these carry a 6 month warranty.
does anyone want me to carry on with this thread?

 

[taipan]

Thought the idea of the thread was to look at a brokenish one to see what the main weaknesses are and then assess whether these weakensses can be addressed with uprated parts?

Having said that Spike 10 out of 10 for effort and willing. You've already got the Janspeed exhaust thing on the go pal so I for one won't mind if you leave this one be!! :approve:

 

[Spike]

Still no sign of a pk6 box, has anyone got a spare or boner for sale?
its like trying to find rocking horse shit.

 

[Woody]

Still no sign of a pk6 box, has anyone got a spare or boner for sale?
its like trying to find rocking horse s**t.

I'm very close to having mine changed, so I'll have a PK6 spare soon (Oct). It's not a complete failure. Not noisey, 5th Gear Syncro gone but still a usable if the gear change is nice and slow and going up into 2nd can be tight when cold but no crashing from its Syncro.

Open to offers.

 

[Spike]

Still no sign of a pk6 box, has anyone got a spare or boner for sale?
its like trying to find rocking horse s**t.

I'm very close to having mine changed, so I'll have a PK6 spare soon (Oct). It's not a complete failure. Not noisey, 5th Gear Syncro gone but still a usable if the gear change is nice and slow and going up into 2nd can be tight when cold but no crashing from its Syncro.

Open to offers.

hi, yes definately interested, pm or phone me, spike.

 

[Brett]

I'll have a pit in my garage once Ive moved soon so gearbox changes will only take a few hours to change.