nicedave Posted June 28, 2007 Share Posted June 28, 2007 Have a problem with a 3 rail box with D type overdrive, have bought this and it was claimed to be working before a long lay-up. Have replaced oil, checked solenoid, operating valve and pressure relief valve and all seem ok but still getting nothing but a distinct click when trying to engage overdrive - any suggestions? Link to comment Share on other sites More sharing options...
Clive Posted June 28, 2007 Share Posted June 28, 2007 Is the solenoid adjusted corrctly, I think this is imprtant on the D types. You will need to use a manual to give you the spec.Otherwise it sounds like something may be sticking? You really need an od guru! Link to comment Share on other sites More sharing options...
nicedave Posted June 28, 2007 Author Share Posted June 28, 2007 Have re-checked adjustment on solenoid and that ok but still no joy - seems like will have to take out the big hammer very soon! Link to comment Share on other sites More sharing options...
rotoflex Posted June 29, 2007 Share Posted June 29, 2007 http://www.canleyclassics.com/infodatabase.asp?article=overdrivesdtypeSome guy on ebay sells (separate) gauges for measuring the pressure in D & J-type ODs. Link to comment Share on other sites More sharing options...
Deleted User Posted June 29, 2007 Share Posted June 29, 2007 There's a plug on the TOP of the overdrive.remove it and there'a little plunger and spring inside.If when the prop is turning no oil is being pumped out of there, your oil pump has seized in the down position, and it will never work again until the oil pump gets replaced. Link to comment Share on other sites More sharing options...
nicedave Posted June 29, 2007 Author Share Posted June 29, 2007 Thanks for that GT - any idea if its possible to replace in situ or if unit has to come out? Link to comment Share on other sites More sharing options...
GT6DavidMK1 Posted June 29, 2007 Share Posted June 29, 2007 yes it give is possible to replace the overdrive without removing the gearbox, give me a call at work next week 01986 895387 and I will explain ;DDavid. Link to comment Share on other sites More sharing options...
Deleted User Posted June 30, 2007 Share Posted June 30, 2007 nicedave wrote:Thanks for that GT - any idea if its possible to replace in situ or if unit has to come out?of course...on 1 celebrated occasion in year x...I managed to do it all in under 60 mins INCLUDING changing the OD clutch ;D :P Link to comment Share on other sites More sharing options...
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