rulloyd Posted May 12 Report Share Posted May 12 Finished most of the jobs retro fitting the o/f (recon) so took it on a short road test. It was running ok for about 5 minutes. I tried engaging o/d but couldn’t tell any difference and my rev counter isn’t working. Suddenly gearbox started making a horrible noise (like I’d not put oil in) which I had. It’s doing it out of 0/d in all gears and the same engaging gear on axle stands. Any ideas? All advice very much appreciated. Video attached. I was pointing the camera at the back end but couldn’t tell where the sound was coming from. IMG_2802.mov Link to comment Share on other sites More sharing options...
johny Posted May 12 Report Share Posted May 12 First can you hear the OD solenoid clicking in and out? Then does it make same noise running on axles stands in reverse gear? Link to comment Share on other sites More sharing options...
rulloyd Posted May 12 Author Report Share Posted May 12 Hi Jonny. O/d. Solenoid is clicking on axle stans ok but I can’t hear it when the engine is running. Too noisy. I did wire up the demister indicator to the o/d relay which for is indicating it’s working. At least in 4th. But I’m guessing I didn’t give it time to build hydraulic pressure. it’s the noise I’m worried about. I didn’t try reverse I’ll go give it a go. Link to comment Share on other sites More sharing options...
johny Posted May 12 Report Share Posted May 12 I suggested reverse as theres been a previous problem with reverse idler gear alignment where its teeth clash with 1st and it could make a similar sound... Link to comment Share on other sites More sharing options...
rulloyd Posted May 12 Author Report Share Posted May 12 Same noise in reverse. Same nose in gears 1-3. 4 actually seems ok. This is on axle stands. Difficult to hear where the noise is coming from but it sounds most pronounced where the gearbox joins the o/d. Honestly sounds like no oil. Because the car is not level when raised, I put in 1.4 litres as manual specifies rather than using the dribble out method. I assume that wouldn’t be a problem. Slightly lower at the back. Link to comment Share on other sites More sharing options...
rulloyd Posted May 12 Author Report Share Posted May 12 The noise is out of O/d btw. I haven’t tested in in o/d. Link to comment Share on other sites More sharing options...
johny Posted May 12 Report Share Posted May 12 Gears 1 - 3 and reverse all use the laygear and mainstaft tip bearing while 4th is straight through (although the laygear does still spin unloaded). Could it be the laygear rear bearing as OD is obviously transmitting drive in all gears... Link to comment Share on other sites More sharing options...
rulloyd Posted May 12 Author Report Share Posted May 12 Thanks Jonny. I REALLY hope not but sounds feasible. Let’s see what others think 😩 Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 13 Report Share Posted May 13 try put in gear and load the transmission with a bit of gentle clutch use does it change thhe noise ? it sounds like the OD one way clutch bearing is clattering there is also an anti clatter spring circlip fitted in a shallow groove in the tail of the main shaft often left out . but thats a hard noise , even thinking of loose flywheel etc. Pete Link to comment Share on other sites More sharing options...
rulloyd Posted May 21 Author Report Share Posted May 21 First clue to the problem attached to the drain plug. Another came out with the oil. Not a good sign for a reconditioned box, 5 mins of use. Link to comment Share on other sites More sharing options...
johny Posted May 22 Report Share Posted May 22 That looks like a needle roller from the laygear of which theres 50 divided between its two bearings. Its very easy for them to come out of place during assembly☹️ Link to comment Share on other sites More sharing options...
johny Posted May 22 Report Share Posted May 22 Not sure you should progress any further. Better to return it to reconditioners to let them do the investigation and hopefully cover the repairs under warranty... Link to comment Share on other sites More sharing options...
rulloyd Posted May 22 Author Report Share Posted May 22 2 hours ago, johny said: Not sure you should progress any further. Better to return it to reconditioners to let them do the investigation and hopefully cover the repairs under warranty... Thanks Jonny. Yes no problems there. Box came from a very reputable source who is very keen to fix the problem. 👍 Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 22 Report Share Posted May 22 its not uncommon for these to get left in following strip down it may be an extra ... pleased they want to fix it . Pete Link to comment Share on other sites More sharing options...
johny Posted May 22 Report Share Posted May 22 Yes we all make mistakes (some more than others possibly) but the key thing is how they resolve the problem😁 Link to comment Share on other sites More sharing options...
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