johnd-mkiv Posted February 14, 2008 Share Posted February 14, 2008 I have a bad clunking and wine from my gearbox, the gears them self do not grind but when you change gear its very notchy and clunky a bit like a dog box. The car used to be an auto but got converted in japan to a 6 speed manual, I have removed all the consol to get a better look around the top of the lincage and noticed a poor attempt of making the gear leaver access hole wider, it was rubbing on the box, but since then I have removed the metal to give it more space to move. I have a feeling they may have left the spigot bearing out when doing the conversion, Just wondering if anyone has experienced this before? I have been to a specialist today did not look to happy with what he was hearing just wondering if any one has had one built? also a rough cost to expect? how easy are parts to get? Ill be removing the box this weekend and see if it can shed any light, if not ill have to weigh up my options on weather to have it rebuilt or buy a secondhand one Quote Link to comment Share on other sites More sharing options...
Nic Posted February 14, 2008 Share Posted February 14, 2008 http://www.turbosupras.com/pdfs/JZA80%20TSRM/MT%20(V160).pdfTRANSMISSION_REMOVAL_AND_IN.PDFTRANSMISSION_REMOVAL_AND_IN2.PDFTRANSMISSION_SERVICING_MT.PDF Quote Link to comment Share on other sites More sharing options...
AshBhp Posted February 14, 2008 Share Posted February 14, 2008 Some good info here- http://mkiv.com/tmp/6spd_parts/ http://www.supraforums.com/forum/showthread.php?p=4875773#post4875773 . Quote Link to comment Share on other sites More sharing options...
Alex Posted February 14, 2008 Share Posted February 14, 2008 Pheonix (Mark) got Ian C's 5th gear syncro replaced/fixed...he sub'd it out to a gearbox specialist he knows. Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted February 14, 2008 Share Posted February 14, 2008 I think you can still get them brand new for 2.5K if I remember correctly, not sure if it was NIC ot Steve Manley I heard this from ?, could be a wise investment on any big power car? Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 14, 2008 Author Share Posted February 14, 2008 Thanks for all your help, ill have a read through the links and get a bit more knowlege on it all Quote Link to comment Share on other sites More sharing options...
gaz1 Posted February 14, 2008 Share Posted February 14, 2008 turbo fit fecked my conversion up it seems, afr are sorting it as we speak, i had clunking whining and sometimes would not go into 4th gear, the usual not lined up properly and bits missing:rolleyes: Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 14, 2008 Share Posted February 14, 2008 You must get a spigot bearing in there ASAP, the input shaft bearing and 1st gear may already be *uggered, and further damage will ensue. Was the engine mated to an auto box before? Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 14, 2008 Author Share Posted February 14, 2008 You must get a spigot bearing in there ASAP, the input shaft bearing and 1st gear may already be *uggered, and further damage will ensue. Was the engine mated to an auto box before? to be honest ive not had the box out of it yet ill be doing that this weekend all i know it used to be an auto, it was converted in japan and the previous owner to me said its always sounded like it. Its just a guess as it could be something overlooked when doing this conversion. When driving it tonight, changing gear it will rattle/clunk but whilst in gear its fine no clunking fairly quiet apart from a little wining. If I hold the clutch down and hit a bump (fairly large bump ) it will make the same clunk noise as if somethings loose/shagged Quote Link to comment Share on other sites More sharing options...
and1c Posted February 14, 2008 Share Posted February 14, 2008 Does anyone have any idea how much the box of SSTs is for the V160? link Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 14, 2008 Share Posted February 14, 2008 Depends how much you want it These special service tools can go for a fiver at an auction if no one knows what they are for, or has a need for them, to a few hundred if you are desperate and have a proper regular use. For example the Nissan Consult OBD reader can go for 50 quid to 500 quid, depending on who when and where. Quote Link to comment Share on other sites More sharing options...
Nic Posted February 15, 2008 Share Posted February 15, 2008 I think you can still get them brand new for 2.5K if I remember correctly, not sure if it was NIC ot Steve Manley I heard this from ?, could be a wise investment on any big power car? A brand new one would be more like £4,000 - 6,000, the V161 being cheaper than the older V160. Quote Link to comment Share on other sites More sharing options...
adi2009 Posted February 15, 2008 Share Posted February 15, 2008 I think you can still get them brand new for 2.5K if I remember correctly, not sure if it was NIC ot Steve Manley I heard this from ?, could be a wise investment on any big power car? 5400$ from the US. Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted February 15, 2008 Share Posted February 15, 2008 5400$ from the US. http://www.mvpmotorsports.com/Templates/frmTemplateM7.asp?SubFolderID=210&SearchYN=N Scroll down, new gearbox is just over $5000 Quote Link to comment Share on other sites More sharing options...
and1c Posted February 15, 2008 Share Posted February 15, 2008 http://www.mvpmotorsports.com/Templates/frmTemplateM7.asp?SubFolderID=210&SearchYN=N Scroll down, new gearbox is just over $5000 Plus $500+ shipping Quote Link to comment Share on other sites More sharing options...
Wez Posted February 15, 2008 Share Posted February 15, 2008 How about a PPG 6-Speed Gear Set Quote Link to comment Share on other sites More sharing options...
JODY T Posted February 15, 2008 Share Posted February 15, 2008 Our Jason can rebuild these easy.. Just finished one for a customer.. His was totally knackered it cost him 500 in labour and about 500 in parts (One gear can cost £150) + Vat so definatly a saving on a new one, or the risk of getting another unknown one. You know where i am Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 15, 2008 Author Share Posted February 15, 2008 im going to pull this apart sunday and see what i can find, by the sounds of it what ever is clattering about inside will be obvious once the cases are split. ill post up some pics and my findings Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 17, 2008 Author Share Posted February 17, 2008 Spent today removing the gearbox and other parts, what a treat that is to get out my hands are now smashed to bits Once the gearbox was out there is dents on the underside of the body work (transmission tunnel) and polished marks on the gear lever lincage where its been hitting the floor, this will explain the vibrating coming through the car possably transmission noises aswell Now that the gearbox is out I can make a neater job of the hole, just wondering why its hitting the floor its as if the mount could poss be the wrong one and raising it up just a bit far (poss an auto mount?) im sure the hole on my old supra was no bigger than whats there now. the clutch pressure plate is buckled I have put a straight edge against the face and this shows. When I come to remove the flywheel I notice it had a lot of movement, you can hold the ring gear and turn the disk that the clutch bolts to around 40mm clockwise and anticlockwise where it comes to a stop. I have checked the spigot bearing and its in there and feels ok. theres no real play in the 1st motion shaft and it feels ok, my dad seems to think the above problems is probably the cause, but im fairly certain there is a problem in the box, either something loose or to much end float on something. im fitting a twin plate clutch when it all goes back, just 50/50 on having the box stripped for piece of mind as I cant be arsed to pull it all apart again Quote Link to comment Share on other sites More sharing options...
Sean1933 Posted February 17, 2008 Share Posted February 17, 2008 The clunking is almost certainly down to what you have highlighted, however its quite hard to diagnose without hearing it 1st hand! The whining sound is sadly probably in the box as you say, probably due to a damage gear, which one i dont know. Does it do it in all gears? Does it increase speed/volume with rpm or roadspeed? Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 18, 2008 Author Share Posted February 18, 2008 The clunking is almost certainly down to what you have highlighted, however its quite hard to diagnose without hearing it 1st hand! The whining sound is sadly probably in the box as you say, probably due to a damage gear, which one i dont know. Does it do it in all gears? Does it increase speed/volume with rpm or roadspeed? to be honest the wine is not the main problem its only noticed in lower gears, its the clunking as iff something is loose inside. I have dropped the box off at a specialist today, so ill finf out the cause this week Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 18, 2008 Author Share Posted February 18, 2008 I have been reading up on here about the dual mass flywheel, from some of the posts the same problems as i am getting seem to be common with a buggered one. My dad is convinced its shagged he cant work out why it can be turned by hand or have around an inch of movement turning it clockwise then anti clockwise. I guess there is a possibility it is this combined with the gearbox rubbing on the floor, thats amplifed into the car? Quote Link to comment Share on other sites More sharing options...
bignum Posted February 18, 2008 Share Posted February 18, 2008 There should be freeplay in the flywheel, upto 105mm ive been told,? Quote Link to comment Share on other sites More sharing options...
Mike M Posted February 19, 2008 Share Posted February 19, 2008 When I replaced my flywheel the new one was really hard to turn by hand and I couldnt move it very much maybe 1 - 2 cm. The old one which did do a fair bit of rattling was fairly easy to turn and I could turn it probably around 4 - 5 cm. I'm only going from memory though as I chucked it out the other month there. This was turning clockwise BTW as your looking at the clutch side, the new one self returned by its spring force and the old one did a little. Quote Link to comment Share on other sites More sharing options...
johnd-mkiv Posted February 19, 2008 Author Share Posted February 19, 2008 When I replaced my flywheel the new one was really hard to turn by hand and I couldnt move it very much maybe 1 - 2 cm. The old one which did do a fair bit of rattling was fairly easy to turn and I could turn it probably around 4 - 5 cm. I'm only going from memory though as I chucked it out the other month there. This was turning clockwise BTW as your looking at the clutch side, the new one self returned by its spring force and the old one did a little. Thanks mate thats a great help Quote Link to comment Share on other sites More sharing options...
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