GazB Posted October 23, 2012 Share Posted October 23, 2012 After 12 months without my car running due to clutch slip on my 2nd HKS twin plate i decided to buy a second hand RPS street max with with 6 puck sprung disc and RPS flywheel from Mike (MSW TT). On Monday the fitting process started down at a pals garage Tyre4U in Mansfield with him and me undertaking the work along with another pal being around for advice when needed. Following 6 hours of steady work the new clutch was in and i jumped in the drivers seat ready to give it a blast and see how good the RPS was. I couldn't engage the gears so we decided to bleed the clutch fluid, easy job as an airline bleeding system was available. The problems was we didn't have and new fluid so we finished for the day packed up and left the car up on the ramp for today when i would return with fluid that i had in my garage at home. Today when i arrived at the garage mid-morning with bottle of 5.1 fluid i was told that my pal had been thinking about why a gear couldn't be engaged and realised we may have installed the disc back to front so it was a case of strip it down again, pull the bellhousing apart enough to get to the disc and turn it around. We managed to turn the disc around without to much problem, refitted all the parts that we had to remove and once again i jumped ito the drivers seat and it was time to test the new clutch Reverse of the ramp, back out of the garage door and gentley up the forcourt slop towards the test area, due to the weather we are having at the moment everywhere is wet and the roads are a bit greasy so tyre spin was inevetable I also noticed a rattling noise that wasn't audiable with my old clutch! Was this just while in reverse? Would it get worse when underload in a forward gear? Lets see was the call, a bit of drifting around the carpark and onto a short road section next to the garage, after not driving the car for 12 months i decided with the wet condiditons low boost would be most advisable. My legs were a bit shakey with the adrenalin but that didn't stop me!!! Raise the revs and drop the clutch, i couldn't hear any rattle now it was just a case of keep control while the wheels were scrambling for grip as i sped up the road, grabbing 2nd then 3rd gear while the car shaked its arse and the tyres spun looking for grip. Thats why i love my Supra and why i'm not selling it I turned back into the garage and straight back onto the ramp were we could have a look what was rattling, the car was quickly lift into the air, the back end jacked up, inspection plate removed and i engaged the clutch while my mate had a look what was happening. After much deliberation we all decided the clutch was fine It was the gearbox that was making a noise The oil was drained and upon inspection we could see brass fillng, an enderscope was used to inspect the gearbox internals while running in different gears, all looks well within! Shafts look good and gears look fine. We presume the gearbox has worn the syncro over time by 'careful' useage New gearbox oil was added, the car will have an engine oil change, brakes checked, new water/anti freeze added and a once over before the car is loaded onto the trailer and heads off to Shakey for Sunday last round of the Pro Street Drag Series and me test the upgrades that have been done since it last ran including test the clutch I'll update the post as we progress with the gearbox inspection over the winter and we may even do the overall ourselves if I can sort some data for the Getrag. Quote Link to comment Share on other sites More sharing options...
GazB Posted November 30, 2012 Author Share Posted November 30, 2012 Update It was decided drag racing wasn't an option So my race weekend at Shakey was cancelled (after heavy rained on the saturday night no racing was possible). After looking into my gearbox noises i decided that an overhaul would be my best option. Second hand gearbox's cost a ridiculous amounts of money and they could have their own issues. My local mechanics suggested were did the work ourselves over the winter months and find parts ect when we looked at what was worn or broke. I drooped Pete at Thor an email asking if he did or knew of anybody that did gearbox repairs/overhauls, he suggested speak to Leon Green at JPS Motorport http://www.jpsmotorsport.com/ After speaking to Leon i was pleased to learn that parts were available from Japan and he could do a full repair/overhaul far cheaper that buying another second hand gearbox. It was decided i would trailer the car down to Milton Keynes today for the work to commence. The M1 jouney was not pleasant! M1 closed southbound at J15a when we were leaving at J14 then very busy on the way home again, but after a 6 hour round trip i feel that i've moved a step closer to getting my car sorted and perhaps with fingers crossed using it early in 2013 when i can try the new power levels Ryan found on its last tuning session I shall update this tread once i speak with Leon again and find out what is happening next. Quote Link to comment Share on other sites More sharing options...
a98pmalcolm Posted November 30, 2012 Share Posted November 30, 2012 I used to go to JPS alot, my car and what it used to look like is in the gallery on the site lol. Good luck with the work, hope all goes well.. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 2, 2012 Share Posted December 2, 2012 All none dual mass flywheels cause gear train noise, that's why Toyota fitted a dual mass.... Puck type clutches don't like being slipped and generate a huge amount of heat, probably not ideal for drifting, and will cause very rapid wear if the heat doesn't kill the diaphragm spring first. Quote Link to comment Share on other sites More sharing options...
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