dougbgt6 Posted October 9, 2017 Report Share Posted October 9, 2017 Went round to my Bruver's today to help him disassemble his clutch. We were expecting the clutch to be locked on/rusted to the flywheel but no, it wasn't. He's already replaced master and slave rubbers so why is the clutch not working? The levering mechanism seems quite stiff, how loose should it be? Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 9, 2017 Report Share Posted October 9, 2017 Its normally a rattling good fit , theres only the pivot pin , bush and the swivel locations , so not much to go stiff Does the withdawl slide easy on the gearbox front sleeve .!??? Did you have a good pedal pressure but it wont clear the disc. You can get drag if the diaphragmand its fulcrum Ring get dislodged , often by being dropped Is the disc flat , not distorted ? Pete Link to comment Share on other sites More sharing options...
Guest Posted October 9, 2017 Report Share Posted October 9, 2017 Hello Doug. Is the slave cylinder feed pipe and bleed nipple round the correct way after reassembly and of course the obvious Q is are the seals spot-on or could it be that one or some are not seating properly ?? Basic I know, but always a good start point. Regards. Richard. Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 9, 2017 Author Report Share Posted October 9, 2017 Thanks guys! The Fat Boy is looking into it! That's him, not me. Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 12, 2017 Author Report Share Posted October 12, 2017 Update on brother's clutch. We went to Moss with the old clutch and they told us it wasn't worn and virtually new! Also Haynes says there is a wrong and a right way to bolt this clutch housing back on the flywheel, the wrong way and the clutch won't work. So, we think the PO changed the clutch, found it didn't work, lost heart, left the car for 7 years and then sold it to a mug punter. (My brother) We re-installed the clutch and bell housing relatively easily, only to discover the clutch slave cylinder operating rod was trapped in the bell housing and couldn't be wiggled into the slave cylinder hole. This was not my fault! It doesn't work like this on the GT6! We gave up and will return tomorrow to undo the bell housing and try again. The question is how far will we have to pull the bell housing back to wiggle the slave cylinder rod out? We thought maybe two long studs through the bell housing and everything will stay in position? Anybody else got this T shirt? Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 12, 2017 Report Share Posted October 12, 2017 This can happen on a number of cars, if the gearbox meets the boot its out too far, Its keep pulling it to get the throwout to allow the rod to swivel out Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 12, 2017 Author Report Share Posted October 12, 2017 Thanks Pete, that's reassuring. Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 13, 2017 Author Report Share Posted October 13, 2017 Well, we got it sorted. Had to pull it back about two inches so splines disconnected but managed to wiggle the rod out. Then a nightmare trying to get the splines back on. The first time it just slid straight on, this time an hour wiggling, flexing, left, right, up and down. Then, suddenly, without doing anything different, success. Next, onto the poor compression! Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 14, 2017 Report Share Posted October 14, 2017 you know you like a good wiggle (thats gearbox) ..... like so many things get the alignment and it fits Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 19, 2017 Author Report Share Posted October 19, 2017 Further update: Brother found he was having to pump the clutch pedal to get the required movement out of the slave cylinder, so new rubbers haven't fixed the hydraulics. He's bought and fitted a new master cylinder and he can feel/see/hear movement from the clutch. The low compression turned out to be a dodgy 40 year old compression tester. Compression now between 140/150. Good enough for the time being. Next problem: Without the engine running he can easily select gears, 1, 2, 3, 4. With the engine running the gear lever is locked solid, won't budge. Any ideas? I think I'm gonna have to go over there again. Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 19, 2017 Author Report Share Posted October 19, 2017 Been looking around the interweb, most instances seem to be locked on clutch, but we've had it apart. Could be the clutch is still not fully operating? New slave required maybe? Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 19, 2017 Report Share Posted October 19, 2017 Doug. when bleeding the slave push the piston down into the slave, to get rid of any trapped air. ( might need slave out to do this.) the problem you have is def the disc is not clearing ,, so when engine runs the synchro baulks any engagement, make sure no carpet is blocking pedal stroke. make sure pedal is fully returning and there is some free play between mcyl push rod and its piston hope that works Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 19, 2017 Author Report Share Posted October 19, 2017 Thanks Pete, I just spoke to "Dejected of Uxbridge" He did the thing with the slave already and the carpet's out. However, he did mention the hole in the top of the pedal was worn elliptical, so there is mechanical play in the system. We could stick a tie wrap in it to take up the slack, it won't last long but it'll tell us if this is the fault. If that doesn't work a new slave I guess. Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 19, 2017 Report Share Posted October 19, 2017 Yes with a pedal ratio of around 5 :1 its easy to lose 25mm of travel due to slop. And a new unbedded disc can cause poor clearing till the fuzz is worn off Then theres a bent plate and dislodged diaphragm fulcrum ring ideas Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 19, 2017 Author Report Share Posted October 19, 2017 Thames area meeting earlier this evening, only 6 people, first time ever less than East Berks, Woo! Hoo! Another thought there was excessive end float. Shan't tell him about that until all other options are exhausted. Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 20, 2017 Report Share Posted October 20, 2017 You cant bolt the cover on incorrectly but the disc can fit both ways round, get it wrong and the disc centre hub can foul on the flywheel bolts The hub stand off (thick side) must be cover side. Some are marked flywheel side to help Can cause serious drag or a lot of clattering .and thats box off to check ... do the simples first Upto eyes with some gearbox repairs but would you like a vist sometime soon to wave some magic fingers at it ??? Pete Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 20, 2017 Author Report Share Posted October 20, 2017 Yes, simples first. Fired him up over the phone this morning and he's going to try and temporarily take the slack out the pedal. If that works or not, I think he's going to order a new slave cylinder anyway, but that's not going to arrive till next week. Thanks for the offer! Will update later on. Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 20, 2017 Author Report Share Posted October 20, 2017 OK wedging a tie wrap in the elongated hole improves the travel, but not enough. Appears to be no end float, which is a relief. He's disconnected the prop and started in several gears, gearbox works! Also a relief.Asked him which way round the clutch disk was, he's certain thick side to the back of the car. Slight seepage from slave bleed nipple, new slave on order but won't be here till next week. More next week. Link to comment Share on other sites More sharing options...
dougbgt6 Posted October 25, 2017 Author Report Share Posted October 25, 2017 Update: My brother got his slave cylinder this morning and put it on. He's got some weird gizmo for hydraulics bleeding, it applies 20lbs pressure to the master cylinder fluid and recycles fluid from the bleed nipple back to the master cylinder, as he explained it to me. It didn't work. He says the peddle goes 3/4 of the way down before he can feel pressure from the clutch. I told him to scrap the gizmo and use my frantic pumping method, works for me every time. He's now spilt the remainder of his dot 4 on the car floor and retired indoors to kick the cat. More dot 4 tomorrow and new starter solenoid. Then re-bleed. If that doesn't work I'll go over again on Saturday. And if that doesn't work we may have to take Mr Lewis for a curry. Link to comment Share on other sites More sharing options...
Pete Lewis Posted October 25, 2017 Report Share Posted October 25, 2017 If the push rod in the slave is firm when you push it(with slave off) then the mechanical side is about right and the lack of pressure is still down to a hydraulic malfunction ie if you peddle it does the slave piston apply the load or is it all spongy Not easy to simulate on car , but you some how need to eliminate the mechanicals from the hydraulics If the reservoir recuperation seal, is not working you loose travel, and as the master has not refilled youre stuck with a low pedal Pete Mmmmm curry Link to comment Share on other sites More sharing options...
dougbgt6 Posted November 2, 2017 Author Report Share Posted November 2, 2017 Update: Brother not able to start the engine to diagnose clutch. One step forward, two steps back. He replaced starter solenoid. Nope, not the solenoid. Starter motor seems.....intermittent. Off to Spitfire grave yard in Wokingham tomorrow to claim £15 starter motor and other essential parts. Then retire to the Hawelli curry shop in Twyford to discuss options. One of which is a visitation from Uncle Pete, lured by........curry. Beginning to suspect this is all driven by my brother's lust for curry. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 2, 2017 Report Share Posted November 2, 2017 At risk, of missing out on a curry Has he checked the starter and engine earths Along with battery posts ( give then a coarse clean up) and body battery earths are clean Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted November 3, 2017 Author Report Share Posted November 3, 2017 Earths were the first thing I said, but no, starter motor on the bench, jump leads to modern's battery and, it's an ex-starter motor. So off to Spit Bitz aka Spitfire grave yard, if we can see our way through the fog. That's three days in a row, thick fog, it's like that film, what was it called? The Fog! I begin to suspect there are undead MG drivers lurching through the mist. Link to comment Share on other sites More sharing options...
dougbgt6 Posted November 3, 2017 Author Report Share Posted November 3, 2017 Returned from Spit Bitz with a good starter motor and clutch pedal. Work to proceed next week after flat pack bookcase construction. Link to comment Share on other sites More sharing options...
Gully Posted November 3, 2017 Report Share Posted November 3, 2017 1 hour ago, dougbgt6 said: Returned from Spit Bitz with a good starter motor and clutch pedal. Work to proceed next week after flat pack bookcase construction. Definitely an issue with priorities there... Gully Link to comment Share on other sites More sharing options...
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