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Different J type Overdrive.


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I am a newbie on here. I have a TR6 where the overdrive doesn't work .  I know is=t may be the solenoid  , but as they are £200 on EBAY  I am thinking of doing an exchange unit. On here for sale is a J type no 312377R   which is listed for a stag.  On  Rimmers  they supply for the TR6  a 313242R  .    My question is   are hey both compatible with the TR6 gearbox?

Many thanks.

Barry. 

 

 

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all base J types are pretty much all the same basics 

overdrive repairs  sheffield list J type sol as £120https://www.overdrive-repairs.co.uk/product/type-solenoid-new/

or james paddock James Paddock Limited - Triumph Stag, Spitfire, TR6, TR7, GT6, Vitesse, Herald Parts and Spares Specialists. OVERDRIVE SOLENOID J TYPE (NKC41)

have you removed the solenoid  ???

they do wear our some simple  rings you need a thin 1" af spanner to loosen the unit  do not get grips on the case you can wreck it easy.

give the thing a shake  the spool inside should rattle ( i call it the maracas test) in the end of the sol. is a small 10mm circlip

remove and get the spool valve to shake /tap out. it must move freely . its on this the 0 rings give up 

its worth a look many sell the spanner for £10 ish    and still not easy to use on the car   easy on a bench

on car sol. removal  will loose a cupfull of oil which needs topping up on refitting

its well worth a look at this its often the problem and costs pennies to solve

ques.  what was wrong with the OD  ???

have you ever cleaned the filter pad ???

 

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HI Pete, 

Thanks for the reply. It just doesn't engage . Have seen the tool to remove the  solenoid  for about £10- £12 . I will probably try that route, and see if I can get it working ,  it's obviously the cheapest route . Haven't cleaned the filter pad so will  do that.

 

Regards.

 

Barry.  

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The solenoid is definitely not operating? Before dismantling anything you can measure the current draw to check the electrics as a high proportion of OD failures are down to this side of things..

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Agree you must stick a small bulb or test meter on the feed with to the solenoid , 

as said it could be fine but electrics have let go.

culprits being inhibitor switch and its setting/adjustment , followed by wires down the gear stick ,column stalks tend to be ok 

dont touch the solenoid till you have proved the 12v supply to it 

Pete

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