tonyhawk Posted October 29, 2005 Share Posted October 29, 2005 Ok, I realise that I'm probably going to get a few sarcastic responses to this, but I need to ask! As some of you may know, I've been trying to track down a horrendous gearbox knocking noise, and I've made a discovery that might have some relevance? After many google searches trying to find some answers, I found a picture of a clutch kit, and I thought, "what's that bearing?" (pilot bearing) Up until now, I have only done flywheel replacements on old cortina's and rovers etc, which do not have this bearing, however, the centre of their flywheels are much smaller. My question is, what would the effect be of running a supe without this bearing? Quote Link to comment Share on other sites More sharing options...
Digsy Posted October 31, 2005 Share Posted October 31, 2005 The end of the gearbox input shaft might flap around a bit. Quote Link to comment Share on other sites More sharing options...
absz Posted October 31, 2005 Share Posted October 31, 2005 i was reading up on spigot bearings a while ago if i'm correct then worn spigot bearing will cause a noise only when its in gear and not in neutral. thats my understanding anyway:shrug: Quote Link to comment Share on other sites More sharing options...
tonyhawk Posted October 31, 2005 Author Share Posted October 31, 2005 The end of the gearbox input shaft might flap around a bit. That's what I assumed; I read an article stating that a worn pilot bearing will kill a clutch quick time, so then surely a missing one would cause a few problems? I posted a question a few days ago about a knocking noise coming from my gearbox, which was before I noticed the missing bearing; I'm hoping that this is the cause and that by fitting one, my wee beastie will be happy again.. I'll be ordering one today, and I'll post the results whern I get it fitted. Thanks for everyone's help. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 31, 2005 Share Posted October 31, 2005 Unless you have converted an auto engine to take a manaul box, and not removed the old spigot for the torque convertor nose and fitted the ball bearing spigot bearing for the nose of the manual gearbox input shaft this sounds an unlikely scenario. The result of leaving it out would almost certainly be horrendous clutch judder and odd noises. The bearing,I stress, though, is in the back of the CRANK, not in the flywheels csntre "hole". Quote Link to comment Share on other sites More sharing options...
tonyhawk Posted October 31, 2005 Author Share Posted October 31, 2005 The result of leaving it out would almost certainly be horrendous clutch judder and odd noises Well, that certainly describes what I am getting. The bearing,I stress, though, is in the back of the CRANK, not in the flywheels csntre "hole". The story goes that I had the engine re-built after a tragic loss of oil caused the crank and one of the con rods to need replacing; this was done by an engineering company near me, but I fitted the engine, so if the Pilot bearing goes in the crank, then it would certainly not have been in there when I got the engine back. As I said, not replacing it was ignorance on my part, but lessons learnt and all that.. I am a little confused though, because I found an article, posted on this forum which states that the Pilot bearing goes in the flywheel. Can you please confirm where it should go? Thanks. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 31, 2005 Share Posted October 31, 2005 It goes in the end of the crank. the auto cranks ahve a plain sleeve that will need removing, the manuals have a ball bearing. Sort it NOW, it WILL knacker the gearbox VERY quickly if run like this, damage may already have been caused to the input shaft, the input shaft bearing or first gear and its' synchro hub assembly. The clutch plate may also be bent. Quote Link to comment Share on other sites More sharing options...
tonyhawk Posted October 31, 2005 Author Share Posted October 31, 2005 Thanks for that, and trust me, with the noise it was making, I haven't driven it more than the half mile I tested it for; the noise and knocking was so worrying that I was afraid to rev it, so I'm hoping that all will be ok? I don't suppose you know of anywhere that sells Pilot bearings do you? My local Toyota dealer takes way too long to get parts in, and I'm not the most patient of people! Thanks again. Tony. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 31, 2005 Share Posted October 31, 2005 My customer supplied his with his used engine, as it was an auto going into a manual, and I knew he'd need it. I usually get stuff like that next day or at worst within 2 days. I'd let you have his old one, but they are almost impossible to remove intact. Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted October 31, 2005 Share Posted October 31, 2005 Tony, Maybe speak to Chris Manley at Inchcape Toyota http://www.mkivsupra.net/vbb/showthread.php?t=41383 Quote Link to comment Share on other sites More sharing options...
tonyhawk Posted October 31, 2005 Author Share Posted October 31, 2005 email sent to you Chris Maybe speak to Chris Manley at Inchcape Toyota Thanks for that, I've just sent Chris a request, but that may be a useful source for that ever growing list of "Toyota Only" parts! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 31, 2005 Share Posted October 31, 2005 email sent to you Chris Thanks for that, I've just sent Chris a request, but that may be a useful source for that ever growing list of "Toyota Only" parts! I am checking availablity and I have e-mailed you my phone number, we'll do this by phone from now on pleae, as i am away from the PC for a while. Quote Link to comment Share on other sites More sharing options...
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