Rob_Mitchell Posted January 25, 2011 Share Posted January 25, 2011 hello everyone im in the process of removing the valves, spings out my stock tt head to replace the valve stem oil seals. if i cleaned the valves off and gave them a quick lap in, would it cause problems with the shimming for the cams? im not really that clued up on the shimming, so is there a thread which can help us out? any help is much appreciated. Quote Link to comment Share on other sites More sharing options...
The Raven Posted January 25, 2011 Share Posted January 25, 2011 I have and im being honest NO IDEA what your talking about, Good luck tho. Quote Link to comment Share on other sites More sharing options...
dude Posted January 25, 2011 Share Posted January 25, 2011 Not normally a problem dude, put em back and measure if the gap has closed up i can surface grind them for you. Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted January 25, 2011 Share Posted January 25, 2011 Edit - Dude beat me to it. Again with Russ here in that my knowledge is limited. I am in the process of rebuilding my engine and I will be doing the valve stem oil seals. For what you intend on doing I don't think you will have any issues with the valve shim clearance. If you are that concerned you could get some feeler gauges and check clearance pre and post stem seal replacement. But I think you will be fine. Just remember to store all the parts in the correct order and location. I will be replacing my cams for Whifbitz 264's. When I do this I will defo be checking the shim clearance. All the data for this are in some of the build threads or in the workshop manuals at turbosupras.com Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted January 25, 2011 Author Share Posted January 25, 2011 yeah to be honest i cant see they will be affected to much but ill double check the clearances. does anyone know the clearances? i really need a owners manual, unless its stated on autodata but i aint looked yet Quote Link to comment Share on other sites More sharing options...
Nic Posted January 25, 2011 Share Posted January 25, 2011 All info in the service manual HERE Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted January 25, 2011 Share Posted January 25, 2011 As above mate you can access the supra workshop manuals at turbosupras.com Here is a link for you GTE Engine manual Saves having to download it to you computer. The exact valve clearances are (taken from manual): Valve clearance (Cold): Intake 0.15 – 0.25 mm (0.006 – 0.010 in.) Exhaust 0.25 – 0.35 mm (0.010 – 0.014 in.) Quote Link to comment Share on other sites More sharing options...
mwilkinson Posted January 25, 2011 Share Posted January 25, 2011 Beat me to it Nic..... Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted January 25, 2011 Author Share Posted January 25, 2011 thats great, thankyou guys thats what i want Quote Link to comment Share on other sites More sharing options...
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