Unusual Overdrive Fault

[cook1e]

My overdrive packed up a couple of weekends ago, thought it would be the usual problem of an electrical wiring fault, as I'm used to having to replace the wires through the gearstick evry 2 or 3 years as they chaff and short out.

This time was different though and I had a double fault. First faukt was easy, , the switch onthe gearstick had packed up. But there was a 2nd fault, I found I had power getting to the relay but couldn't hear the familiar click from teh solenoid. I expected either a wiring problem between the relay and solenoid or a knackered solenoid. Out came the tunnel tonight and then I found the fault, the solenoid was sitting on the chassis rail together with one of it's mounting screws. Luckily I don't think there is enough room for it to have fallen any furher other wise I'd have been after a new solenoid.

Anyway, a relatively easy fix providing I can find another dixing screw iof the right thread in my garage, looks like it may be a BA thread.....

[Pete Lewis]

2ba rings a bell  we used some with allen key bolt heads  and made up a long key with a socket made it easy to locate and tighten ( D Type) which has poor accessibility   Pete

[GT6 M]

Put some lock tight on, to stop it coming loose,

not a lot, just a little,and a split washer too!

d type are a pain, to get at,

Marcus

[Jimmmy0_0]

Andy

Let me know what size the screw is as I should have one at work.

James

[shedmonkey]

You have time to screw at work...wish I did!

[cook1e]

Found a screw that fitted, checked out Canley's catalogue and it's listed as a No10 screw so presumeably 10 UNC as it's certainly not as small as 10 BA Found some suitable screws anyway. In fact decided to nick a couple of the hex headed screws that hold the cover over the adjusting arm (same thread) and replace these with normal screws and use the nicked hex heaeded screws on the solenoid.

Probelm is that the solenoid has decided it didn't like jiggling around on the chassis for a coupel of hundred iles so it's decided to give up the ghost.

As manetioned accesibilty is not good on the D-Type solenoid and it is a pain to do the bottom screw up, managed to do it up with a 1/4 inch drive socket and extension but now I've found the solnoid has packed up it's got to come out again :-( .

Found out that MGB's have the same solenoid (part No 512114). David Manners are much cheaper than any of the Triumph specialists for this part they list for both MGB and GT6, and are £23 for the solenoid which seems reasonable enough. On a course in Birmibngham on Friday as well so I should be able to go and pick it up and save on postage.

[Richard B]

cook1e wrote:

As mentioned accesibilty is not good on the D-Type solenoid and it is a pain to do the bottom screw up, managed to do it up with a 1/4 inch drive socket and extension but now I've found the solnoid has packed up it's got to come out again :-( .

10/32 UNF (?)

Had to do this on Alisons O/D, undo the two rubber mount bolts to the O/D and jack the engine/gearbox up a couple of inches (watch the radiator - fan clearence). This should give you a bit more access!  ;)

[bodders1]

Richard_B wrote:

Had to do this on Alisons O/D, undo the two rubber mount bolts to the O/D and jack the engine/gearbox up a couple of inches (watch the radiator - fan clearence). This should give you a bit more access!  ;)

was that before or after MarkDeTriomphe and me [s]buggered[/s] repaired the switch for her on the Isle of Wight?

[Richard B]

bodders1 wrote:

was that before or after MarkDeTriomphe and me [s] buggered [/s] repaired the switch for her on the Isle of Wight?

Before. She fitted the gearbox but then had to go back to uni. When I was putting the wiring in I discovered that the solenoid had no wires; so it had to come off for soldering!