New Overdrive.

[nang]

I'm sick of trying to get my o/d fixed over here. I know it won't be cheap but is there anywhere that I can get a good or recon J type overdrive from UK.
Everyone seems to want an exchange unit, Fair enough, I can see why, but the cost of sending my old one over would make the whole exercise impossible.
Triumph 2500.
Thanks.
Tony.

[Steve AKA vitessesteve]

Try http://www.overdrive-repairs.co.uk/ based in Sheffield UK - have several ex Laycock chaps on staff.   Or Mike Papworth based in Coventry https://www.facebook.com/mike.papworthtriumph

[Nick Jones]

Tony,

A man of your talents shouldn't have any major problems sorting it at home.  They are not complex.  Some tooling investment (gauges & adaptors) might be needed but small beer compared to shipping costs.  Possibly you might still need to buy parts from the UK (relined clutches etc) but relatively small and light.

A type or J type?  Buckeye Triumphs have great write-ups on both
http://www.buckeyetriumphs.org/technical/technical.htm

Cheers

Nick

[nang]

I'm going to have to go inside...It's not electrical as most of my previous prpbs have been.
This afternoon I ran a live  feed through a switch to the solenoid. Could hear the solenoid going click but nothing else happened on the road.
I've had the 3 plugs under the sump out and replaced most things. An "expert" has already been through the gearbox and o/d. Gearbox is fine, just the bloody overdrive.
Can I get it off the o/d off the 'box in place, and more importantly get it back? It's a J type.
Thanks
Tony.

[Pete Lewis]

ive found many operational problems are due to the solenoid internal shuttle is stuck
unscrew the solenoid with a , 1" af thin spanner dont turn it by the body,
remove and lookin the end there is a small 10mm circlip, pop this out and shake out the  shuttle /spool valve inside this must be a easy slide/ loose rattles when shaken . if its stiff it wont work .
a clean and maybe new 0 rings on the shuttle and the body .
if you have a battery( these dont need mega amps ) you can fire the solenoid and see if the inside bit actually moves  worth a quick look.

Pete

[nang]

Sorry, didn't mention I've been into the solenoid,replaced all the O rings ,even the inside ones, and even replaced it with no improvement.
Tony.

[Nick Jones]

I think you probably could get the OD off the box without removing the box from the car.  You might even get it back on again (lining both sets of spline up is always a royal pain).  However, you'd probably find the the rest of the gear box very handy for test purposes - you can spin the gearbox up with a decent electric drill (my 500W Bosch just managed it)  to test the OD, measure pressures etc.

Nick

[nang]

Many thanks Nick, I'll keep the forum informed as to what I find......I've really got to fix this bloody thing (huh)
Tony.

[josh18]

I took my OD off the box once and we found it very hard to get it to release. The book said to pump pressurized oil into somewhere to release it. We didn't have oil so we used compressed air. It worked in the end but it was pretty painful.

[Pete Lewis]

wont be the first time ive found the rebuild left the pump cam keyway out , so no pump action

Pete

[Pete Lewis]

Just had the  J type  OD off my gearbox and it pop on /off easy
there is a plug or nipple to pressurise the clutch pump but ive not needed to
Its located next to the filter cover
the j type has a self aligning pump 'big end' so positioning the cam low  is not needed

if alignment on refit is blocked , just pry the two piston bars with a couple of screwdrivers and this opens the clutch  just remove them when it drops on.

pete