pinky Posted September 20, 2021 Report Share Posted September 20, 2021 Sad news, broke down this evening 170 miles from the iow, been to the Isle of man, festival of motoring had a great time, broke down on the way home, managed to get to the hottel, the aa are picking me up in the morning so got it all sorted Symptoms are 1st gear ok reverse gear ok 2nd 3rd and 4th work but sounds like----- when we were kids putting a card on a peg and letting the card rub on thr spokes Any sugestions will be gratefully recieved cheers pink Quote Link to post Share on other sites
ntc Posted September 20, 2021 Report Share Posted September 20, 2021 2 hours ago, pinky said: Sad news, broke down this evening 170 miles from the iow, been to the Isle of man, festival of motoring had a great time, broke down on the way home, managed to get to the hottel, the aa are picking me up in the morning so got it all sorted Symptoms are 1st gear ok reverse gear ok 2nd 3rd and 4th work but sounds like----- when we were kids putting a card on a peg and letting the card rub on thr spokes Any sugestions will be gratefully recieved cheers pink Bu!!er mate who did the gearbox? Quote Link to post Share on other sites
pinky Posted September 20, 2021 Author Report Share Posted September 20, 2021 Your mate Neil Quote Link to post Share on other sites
ntc Posted September 20, 2021 Report Share Posted September 20, 2021 13 minutes ago, pinky said: Your mate Neil That was years ago pink he has been unwell but I can get in touch with him and he will help you I have no doubt Quote Link to post Share on other sites
Andy Moltu Posted September 21, 2021 Report Share Posted September 21, 2021 Short answer is it sounds like the layshaft/gear has called time. Gearbox rebuild time. Make sure the new laygear is properly hardenend. Quote Link to post Share on other sites
Lebro Posted September 21, 2021 Report Share Posted September 21, 2021 I think it could be any of the helical cut gears loosing a tooth. Recommend a three bearing countergear when you re-build, & don't use cheap bearings anywhere on it ! Bob. Quote Link to post Share on other sites
pinky Posted September 22, 2021 Author Report Share Posted September 22, 2021 Thank you for your reply's I am at home now, long day yesterday aa recovery This morning have got under the car drained the oil,and removed overdrive filter no metal, However found a hole in the overdrive box Quote Link to post Share on other sites
stillp Posted September 22, 2021 Report Share Posted September 22, 2021 Quote Link to post Share on other sites
ntc Posted September 22, 2021 Report Share Posted September 22, 2021 Pink Thats a new one on me never seen it before. How much oil did come out? anyway looks expensive mate. Quote Link to post Share on other sites
RogerH Posted September 22, 2021 Report Share Posted September 22, 2021 8 hours ago, pinky said: Thank you for your reply's I am at home now, long day yesterday aa recovery This morning have got under the car drained the oil,and removed overdrive filter no metal, However found a hole in the overdrive box Hi Pinky, are you suggesting that the hole has caused the problem. Roger Quote Link to post Share on other sites
pinky Posted September 22, 2021 Author Report Share Posted September 22, 2021 No , I belive somthing inside has tried to escape, There was about half the amount of oil left , Quote Link to post Share on other sites
jerrytr5 Posted September 22, 2021 Report Share Posted September 22, 2021 Bit of Devcon will fix that. Jerry Quote Link to post Share on other sites
tthomson Posted September 24, 2021 Report Share Posted September 24, 2021 The internal oil pressure of the Overdrive when engaged is more than 400psi. I don't know if the hole is connected to this pressure, but if so the oil will squirt out in spectacular style. Make sure any repair is up to the job. TT Quote Link to post Share on other sites
Motorsport Mickey Posted September 24, 2021 Report Share Posted September 24, 2021 Tapped and then a Cheese head screw with sealer on into the hole ? That will stand the pressure if the hole makes it to inside. Mick Richards Quote Link to post Share on other sites
SeidelVC69 Posted September 28, 2021 Report Share Posted September 28, 2021 Dont worry pinky, this is just the end of a drill hole in which a thread is placed for one of the screws for the cover of the accumulator piston and its spring. Every A-Overdrive main cases have it. There is no connection to the oil. Dieter Quote Link to post Share on other sites
pinky Posted September 30, 2021 Author Report Share Posted September 30, 2021 On 9/28/2021 at 8:28 PM, SeidelVC69 said: Dont worry pinky, this is just the end of a drill hole in which a thread is placed for one of the screws for the cover of the accumulator piston and its spring. Every A-Overdrive main cases have it. There is no connection to the oil. Dieter Thank you for your reply, I understand, however I can see through the hole, probably a weakness from the drill cutting in close to the casting Cant explain why this has happened when I'm haveing the problem, all gears are working and the overdrive Cheers pink Quote Link to post Share on other sites
Hamish Posted October 5, 2021 Report Share Posted October 5, 2021 On 9/30/2021 at 8:29 AM, pinky said: Thank you for your reply, I understand, however I can see through the hole, probably a weakness from the drill cutting in close to the casting Cant explain why this has happened when I'm haveing the problem, all gears are working and the overdrive Cheers pink Sorry I am late to this I have been away. I have the same hole in my A type OD. The od and box are an early tr6 version full synchro. box is fresh back from Pete and Tom cox in this pic. it’s not a leak point. Don’t know why it’s there though. Quote Link to post Share on other sites
pinky Posted October 8, 2021 Author Report Share Posted October 8, 2021 Just picked up on this Hamish thank you for the info Pink Quote Link to post Share on other sites
Bradley Posted October 12, 2021 Report Share Posted October 12, 2021 Hi Pinky, I have spoken to Tom (Pete Cox and Son Sports Cars - we did the work on Hamish's unit) and he has informed me this is the end of a long compression bolt for the accumulator. This was drilled like this in the factory many years ago. He has yet to see a leak from this point as it doesn't pass through to the main casing. If you want us to have a look at your unit please let us know. From reading previous comments we believe your layshaft is at fault. Quote Link to post Share on other sites
Hamish Posted October 12, 2021 Report Share Posted October 12, 2021 (edited) 3 hours ago, Bradley said: Hi Pinky, I have spoken to Tom (Pete Cox and Son Sports Cars - we did the work on Hamish's unit) and he has informed me this is the end of a long compression bolt for the accumulator. This was drilled like this in the factory many years ago. He has yet to see a leak from this point as it doesn't pass through to the main casing. If you want us to have a look at your unit please let us know. From reading previous comments we believe your layshaft is at fault. Bradley are you the guy always busy in the background working with Tom and Pete ? Edited October 12, 2021 by Hamish Quote Link to post Share on other sites
Bradley Posted October 12, 2021 Report Share Posted October 12, 2021 1 hour ago, Hamish said: Bradley are you the guy always busy in the background working with Tom and Pete ? No that's Cam, he works on the diffs, I'm in the office Quote Link to post Share on other sites
Hamish Posted October 12, 2021 Report Share Posted October 12, 2021 1 hour ago, Bradley said: I'm in the office ah the one that keeps everything running smoothly then ......... Quote Link to post Share on other sites
ntc Posted October 12, 2021 Report Share Posted October 12, 2021 Use ORS Pinky you will not go wrong Quote Link to post Share on other sites
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