Eddie Trickett Posted July 17, 2021 Report Share Posted July 17, 2021 My TR250 has a saloon gearbox fitted. I have just wired up the solenoid and it doesn't seem to work. It doesn't make a noise when switched on. I have checked the current and it is taking about 2 amps so electrical side is OK. Can these be serviced/ repaired? New solenoids seem to be well in excess of £100. Thanks Eddie Quote Link to post Share on other sites
RobH Posted July 17, 2021 Report Share Posted July 17, 2021 There is some discussion on repairing one here Eddie, with pictures: https://forum.tssc.org.uk/topic/6540-repairing-j-type-solenoid/ Quote Link to post Share on other sites
Eddie Trickett Posted July 17, 2021 Author Report Share Posted July 17, 2021 Hi Rob, Thanks for this, very useful. Solenoid is a bit more complex than I imagined. Looks like an opportunity for someone to offer refurbished solenoids. Eddie Quote Link to post Share on other sites
rvwp Posted July 23, 2021 Report Share Posted July 23, 2021 Hi Eddie, The solenoid on the 'J' overdrive I recently rebuilt was not working. However I removed the small circlip from the end and withdrew the piston. I found tapping the end of the solenoid did not fully remove it, but a self tapping screw that just engaged in the hole in the end of the piston allowed it to be pulled out. Cleaned it up, fitted a new O ring and reassembled. Now works. Worth a try. Rich Quote Link to post Share on other sites
c.hydes Posted July 24, 2021 Report Share Posted July 24, 2021 22 hours ago, rvwp said: Hi Eddie, The solenoid on the 'J' overdrive I recently rebuilt was not working. However I removed the small circlip from the end and withdrew the piston. I found tapping the end of the solenoid did not fully remove it, but a self tapping screw that just engaged in the hole in the end of the piston allowed it to be pulled out. Cleaned it up, fitted a new O ring and reassembled. Now works. Worth a try. Rich Hi Rich, where did you get the O rings, and is there just onne? Cheers, Colin. Quote Link to post Share on other sites
rvwp Posted July 24, 2021 Report Share Posted July 24, 2021 Hi Colin, got it from ORS Ltd when I ordered a gasket and seal kit. I think there is only one internal, (can't remember for sure) but two external, Give them a call and they will confirm. Problem is at the moment most of the employees have been pinged and are self isolating!! Rich Quote Link to post Share on other sites
Eddie Trickett Posted August 17, 2021 Author Report Share Posted August 17, 2021 Finally got the solenoid out and cleaned it. It seems to work now but the movement is fairly small. Not had chance to try the overdrive yet. Eddie Quote Link to post Share on other sites
rvwp Posted August 18, 2021 Report Share Posted August 18, 2021 Hi Eddie, Despite what I said re cleaning the solenoid and replacing O rings, although it appeared to work on the bench and it looked good, it would not work when fitted to the OD although I could hear it function! I substituted the solenoid from my TR6 which has a 'J' OD and it worked, so pointing to a solenoid problem. Further discussions with ORS Ltd revealed that most of the problems with 'J' OD's not working are solenoid related and they have experienced similar problems. So I have bitten the bullet and purchased a new solenoid from them and it now works. Go figure . If you have to buy, ORS LTD are considerable cheaper than Moss at £120 +vat. Rich Quote Link to post Share on other sites
Eddie Trickett Posted August 18, 2021 Author Report Share Posted August 18, 2021 Hi Rich, Thanks for the update. To be honest I am not very hopeful of the solenoid working but won't find out for a while unless I jack up the back of the car and try it. ORS did the overdrive on my TR6 + some machining on the 2nd gear. Reasonable price and good service. Thanks Eddie Quote Link to post Share on other sites
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