griffsplace Posted June 28, 2020 Share Posted June 28, 2020 Hi I seem to have a fair leak coming (a regular drip) and its only getting shuffled about on the drive at the moment, from the w58, I am going to pull the box out this week and give it a good look over, are seal still available for these units? Am i opening a can of worms that i will regret? Any advice or parts necessary info would be great. Quote Link to comment Share on other sites More sharing options...
m12aak Posted June 28, 2020 Share Posted June 28, 2020 Are your valve cover gaskets leaking? When mine leaked it collected there also, so it may be worth checking that first and then tightening the bolts/replacing the gasket (if it is leaking). Quote Link to comment Share on other sites More sharing options...
mc92 Posted June 28, 2020 Share Posted June 28, 2020 https://toyota.epc-data.com/supra/jza80/94050/chassis/3301/04331/ Appears to be different part numbers for seals depending on the year. I'm not sure what the differences are but all 3 are available online. http://shoarmateam.nl/upload/MKIVSupra/Supra-MKIV-Repair-Manual/Transmissions/Manual%20W58.pdf Here's the gearbox repair manual from the TSRM which might help. Looks like the outer case seals are squeezed out of a tube. Quote Link to comment Share on other sites More sharing options...
griffsplace Posted July 1, 2020 Author Share Posted July 1, 2020 Appears to actually be water leaking from the connection at the back of the block/head, now that looks a bitch to get to. Think I am going to leave it leaking for a bit. Quote Link to comment Share on other sites More sharing options...
m12aak Posted July 1, 2020 Share Posted July 1, 2020 Yeah, that is an annoying one to change, I found using bent needlenose pliers helps. Quote Link to comment Share on other sites More sharing options...
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