Lee P Posted May 27, 2014 Share Posted May 27, 2014 Could be just a missfire but I would remove that solid crank pully ASAP and fit a Toyota one or you will damage the engine. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted May 27, 2014 Share Posted May 27, 2014 Is there no one local with Supra knowledge who could pop round and have a look for you? Quote Link to comment Share on other sites More sharing options...
Dnk Posted May 27, 2014 Share Posted May 27, 2014 A simple thing to do would be take the auxilary belt off and run the engine for a a few seconds to rule out all the pulleys, i'd pop the cam pulley/spark plug cover off and check the tension on cam belt too. Quote Link to comment Share on other sites More sharing options...
SupraLEDrears Posted May 28, 2014 Author Share Posted May 28, 2014 Thanks for all the advice guys Quote Link to comment Share on other sites More sharing options...
SupraLEDrears Posted May 30, 2014 Author Share Posted May 30, 2014 Do a compression test on it, then a leakdown test. Madness to strip it, external tests will isolate most issues. Pay for good diagnosis, will save you money long term. Compression test was as follows. 1 180psi 2 180psi 3 170psi 4 160psi initially and then 180psi with a wet test 5 180psi 6 180psi. Couldnt do leakdown test as I broke the y piece on intake manifold. A simple thing to do would be take the auxilary belt off and run the engine for a a few seconds to rule out all the pulleys, i'd pop the cam pulley/spark plug cover off and check the tension on cam belt too. Removed viscus fan, then belt and still the same. Cambelt is 100%. I did fail to mention that my car got hit on Tuesday night, 3 days prior to this. I was parked in an ASDA car park and according to the CCTV operator, the micra hit me so hard, my car moved quite a bit and they sped off. Luckily they managed to get the whole incident and reg on CCTV. This could've damaged the gearbox mount, I assume? My mechanic is still adament that it's misfiring. Took dizzy cap off, plugs out, checked leads and still the same problem. When he's getting the Y piece off keron tomorrow( Bless the guy for his great service) he will check the actual distributor and then go from there. Other than that, I might have to make the trip down to Shropshire, Chris. Quote Link to comment Share on other sites More sharing options...
Dnk Posted May 31, 2014 Share Posted May 31, 2014 (edited) Can't see that impact breaking the gearbox mounting, have a look in the AT pdf and you can see the support bracket etc on page AT-4 Here's the bracket for the manual gearbox in the MT pdf page MT-5AT (2JZ-GE).pdfMT (V160).pdf Edited May 31, 2014 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
SupraLEDrears Posted July 18, 2014 Author Share Posted July 18, 2014 Sorted. It was the clutch all along! Quote Link to comment Share on other sites More sharing options...
jay200bhp Posted July 18, 2014 Share Posted July 18, 2014 ahh the old misfiring clutch sketch Quote Link to comment Share on other sites More sharing options...
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