SpeedFreak Posted January 27, 2020 Report Share Posted January 27, 2020 Can anyone advise me as to does the TR6 engine gearbox assy need or use dowels for location as there are suitable holes ? but mine didn't have any when separated . Thanks Richard.. Quote Link to post Share on other sites
barkerwilliams Posted January 27, 2020 Report Share Posted January 27, 2020 Richard, There are two dowel bolts 132872, larger diameter than the other fixing bolts which have an interference fit in their respective holes. At first inspection the holes are not much larger diameter than the others but many clutch issues are reported as being down to mis-alignment due to incorrect bolts being used. https://www.moss-europe.co.uk/shop-by-model-1/triumph/tr5-6/clutch-transmission-drivetrain/gearboxes-components/external-gearbox-tr5-6-1967-76.html Do not skimp on these two bolts they are critical to clutch performance. Alan Quote Link to post Share on other sites
SpeedFreak Posted January 28, 2020 Author Report Share Posted January 28, 2020 Thank you Alan, Thats just what I wanted to know. Richard.. Quote Link to post Share on other sites
Birdseye Posted January 28, 2020 Report Share Posted January 28, 2020 Richard, The dowel bolts are very important. I didn't fit them as I didn't realise how important they were. Not fitting them cost me both time and money. I have attached the link from my post, its worth a read. The dowel bolts are the final fix to the problem I encountered. Regards Ross Quote Link to post Share on other sites
barkerwilliams Posted January 28, 2020 Report Share Posted January 28, 2020 Richard, ...and while you are at it under no circumstances fit the clutch release fork onto the cross shaft with only the operating pin 158777X fitted as standard. I needs a second bolt, pin whatever to spread the load or you will have the pleasure of removing the gearbox soon to replace a broken operating pin. Literally dozens of posts on here about the issue. Clutch still (almost) works with a sheared pin but issues abound with the limited release fork movement after shearing Alan Quote Link to post Share on other sites
SpeedFreak Posted February 1, 2020 Author Report Share Posted February 1, 2020 Thank you for the heads up Alan. This will probably bring shrieks of condemnation, but mine had slack anyway so would have needed a new shaft, so I put four welds two either side of the fork, no slack now and yes I realise that to do any future work will require cutting the shaft. Richard.. Quote Link to post Share on other sites
John Morrison Posted February 1, 2020 Report Share Posted February 1, 2020 Shreeeeeeeeeek!!!!!!!! John. Quote Link to post Share on other sites
SpeedFreak Posted February 3, 2020 Author Report Share Posted February 3, 2020 Glad to see that humour is still alive !! Richard.. Quote Link to post Share on other sites
Fireman049 Posted February 3, 2020 Report Share Posted February 3, 2020 (edited) . Edited April 15, 2020 by Fireman049 Quote Link to post Share on other sites
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