BlueTR3A-5EKT Posted November 14, 2020 Report Share Posted November 14, 2020 Bob, I can do you a drawing of a dipstick if you want or you can borrow one from my spare gearbox to copy. Peter W Quote Link to post Share on other sites
BlueTR3A-5EKT Posted November 14, 2020 Report Share Posted November 14, 2020 Just now, BlueTR3A-5EKT said: Bob, I can do you a drawing of a dipstick if you want or, if I can get to it, you can borrow one from my spare gearbox to copy. I recall the challenge was making the felt bush that forms the seal. Probably better to use a couple of O rings instead. Peter W Quote Link to post Share on other sites
Lebro Posted November 14, 2020 Author Report Share Posted November 14, 2020 Thanks peter, but if I have to make one, Ian's photo (above) would be good enough. might see if the TR shop have a 2nd hand one. Bob. Quote Link to post Share on other sites
stuart Posted November 15, 2020 Report Share Posted November 15, 2020 Dont forget theres a felt seal around the top of it. Stuart. Quote Link to post Share on other sites
Lebro Posted November 15, 2020 Author Report Share Posted November 15, 2020 20 hours ago, Ian Vincent said: Now added. If you need anymore, please let me know. Rgds Ian Hi Ian. Could you measure the diameter of the hole in the box (or the diameter of the felt seal). If I make one I will probably cut an 'O' ring groove in the top section to provide the seal. My tunnel already has the access hole & rubber bung as mine is an early TR3. Bob. Quote Link to post Share on other sites
Ian Vincent Posted November 15, 2020 Report Share Posted November 15, 2020 2 hours ago, Lebro said: Hi Ian. Could you measure the diameter of the hole in the box (or the diameter of the felt seal). If I make one I will probably cut an 'O' ring groove in the top section to provide the seal. My tunnel already has the access hole & rubber bung as mine is an early TR3. Bob. The hole is 20.4mm dia. with a small chamfer (approx. 2mm) on the lead into it. The felt is about 20.5mm dia. although it is difficult to get a precise measurement because the felt crushes. The dipstick is definitely not a tight fit in the hole. Rgds Ian Quote Link to post Share on other sites
Lebro Posted November 15, 2020 Author Report Share Posted November 15, 2020 Thanks Ian, will probably add that job to my list ! Bob. Quote Link to post Share on other sites
Lebro Posted November 15, 2020 Author Report Share Posted November 15, 2020 (edited) Todays tasks were: To make a new anti-rattle plunger to go in the bottom of the gear lever.The old one vanished when I removed the lever, & can I find it - no. I made some of different lengths for a fellow TVG member a while ago, I sacrificed a pozidrive screwdriver to obtain some ¼" hard steel rod, and luckily I knew where to find the piece I had left over. Next was to setup the two halves of the rear crank oil seal ready for modifying to take the Christian Marx lip seal. Locking halves together over the alignment tool (thanks Roger), mounting on lathe, centering it up. Will start machining tomorrow. Bob. Edited January 16, 2021 by Lebro Quote Link to post Share on other sites
BlueTR3A-5EKT Posted November 15, 2020 Report Share Posted November 15, 2020 (edited) 28 minutes ago, Lebro said: Todays tasks were: To make a new anti-rattle plunger to go in the bottom of the gear lever.The old one vanished when I removed the lever, & can I find it - no. I made some of different lengths for a fellow TVG member a while ago, I sacrificed a pozidrive screwdriver to obtain some ¼" hard steel rod, and luckily I knew where to find the piece I had left over. Next was to setup the two halves of the rear crank oil seal ready for modifying to take the Christian Marx lip seal. Locking halves together over the alignment tool (thanks Roger) Mounting on lathe Centering it up. Will start machining tomorrow. Bob. I made my anti rattle plunger from a short length of silver steel, domed end using lathe and file, cut to length & subsequently flame hardened. - 1/4" diameter is the size I used and 5/16" - 3/8" long. Peter W Edited November 15, 2020 by BlueTR3A-5EKT Quote Link to post Share on other sites
Lebro Posted November 17, 2020 Author Report Share Posted November 17, 2020 (edited) On 11/14/2020 at 12:59 PM, Ian Vincent said: I can second Peter's comment about a dipstick, I have one and it makes oil checkups and topping up a whole lot easier. Even more so if you cut a hole in your tunnel over the top of it and add a rubber bung. If you need a photo, I can provide one. Rgds Ian Hi Ian, having drilled a 20mm hole in the gearbox, & made my dipstick, one last request, can you measure the distance from under the cap (ie top surface of gearbox hole) to the min, & the max lines, I can them stamp them into my version. Ta. Also today I finished off the rear crank oil seal housing mods Trial fit of seal, drain hole enlarged, & seal relieved to allow oil to drain away (belt & braces) Bob Edited January 16, 2021 by Lebro Quote Link to post Share on other sites
Drewmotty Posted November 17, 2020 Report Share Posted November 17, 2020 If we still had a “like” button I’d press it :-) Quote Link to post Share on other sites
Hamish Posted November 17, 2020 Report Share Posted November 17, 2020 55 minutes ago, Drewmotty said: If we still had a “like” button I’d press it :-) Me too that dip stick is a work of art. Quote Link to post Share on other sites
David Owen Posted November 17, 2020 Report Share Posted November 17, 2020 8 minutes ago, Hamish said: Me too that dip stick is a work of art. It is. Thirded. Quote Link to post Share on other sites
stuart Posted November 18, 2020 Report Share Posted November 18, 2020 No Knurling round the top of the dipstick then Bob? Stuart. Quote Link to post Share on other sites
Lebro Posted November 18, 2020 Author Report Share Posted November 18, 2020 Look more closely Bob Quote Link to post Share on other sites
Hamish Posted November 18, 2020 Report Share Posted November 18, 2020 27 minutes ago, stuart said: No Knurling round the top of the dipstick then Bob? Stuart. Stuart double o rings AND knurling. oh ye of little faith. Quote Link to post Share on other sites
Ian Vincent Posted November 18, 2020 Report Share Posted November 18, 2020 (edited) 17 hours ago, Lebro said: Hi Ian, having drilled a 20mm hole in the gearbox, & made my dipstick, one last request, can you measure the distance from under the cap (ie top surface of gearbox hole) to the min, & the max lines, I can them stamp them into my version. Ta. Also today I finished off the rear crank oil seal housing mods Trial fit of seal Drain hole enlarged, & seal relieved to allow oil to drain away (belt & braces) Bob Top job Bob, (as usual). The dimensions from the underside of the top plate to the two level marks are 7.125” and 7.5”. Rgds Ian PS There’s a bit of parallax happening with the photo which is why both the above dimensions appear slightly more. Edited November 18, 2020 by Ian Vincent Quote Link to post Share on other sites
stuart Posted November 18, 2020 Report Share Posted November 18, 2020 2 hours ago, Hamish said: Stuart double o rings AND knurling. oh ye of little faith. Perfect! Stuart. Quote Link to post Share on other sites
Lebro Posted November 18, 2020 Author Report Share Posted November 18, 2020 Quote Link to post Share on other sites
iain Posted November 18, 2020 Report Share Posted November 18, 2020 Lovely work. Iain Quote Link to post Share on other sites
Lebro Posted November 18, 2020 Author Report Share Posted November 18, 2020 2 hours ago, Ian Vincent said: Top job Bob, (as usual). The dimensions from the underside of the top plate to the two level marks are 7.125” and 7.5”. Rgds Ian PS There’s a bit of parallax happening with the photo which is why both the above dimensions appear slightly more. Interestingly, I made the marks on me dipstick as measured above, & then I thought I would compare the level indicated with what you would get at the level filling / setting hole in the side. With everything leveled up, I determined that the dipstick marks were ¼" too low for this box. seems the later 4 synchro boxed were slightly different in this area. Anyway, it was easy to add another mark ¼" further up, & cut the rod at the previous lower mark point. Bob. Quote Link to post Share on other sites
Ian Vincent Posted November 18, 2020 Report Share Posted November 18, 2020 Which might explain why my box (also a saloon box) which has been filled until it overflowed through the hole in the side indicates that according to the dipstick it’s slightly overfilled. Rgds Ian Quote Link to post Share on other sites
NCS_TR3A Posted November 18, 2020 Report Share Posted November 18, 2020 Seriously impressive stuff. Following with interest Quote Link to post Share on other sites
Lebro Posted November 19, 2020 Author Report Share Posted November 19, 2020 (edited) Gearbox finally back together, struck it lucky with the overdrive, it went all the way on 1st time ! Tested using a drill on I/P shaft & O/D still works which was a relief. Edited January 16, 2021 by Lebro Quote Link to post Share on other sites
Hamish Posted November 19, 2020 Report Share Posted November 19, 2020 Well done Bob H Quote Link to post Share on other sites
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