[Vwdiesel] FW: retorque.H . Hagar. h_hagar at prcn.org
Tue Aug 16 13:33:39 EDT 2005
Jeff Rakus --- I Hagar suggest that you read Loren ---in archives. ----Personally I do not use Bentley procedures ---- BUT the way I do it requires the VC to be removed a LOT of times. -----tightening of Head-bolts on a VW Diesel? --super critical IMHO. Many years ago I started to use EPOXY on cylinder heads---- and I will NEVER stop now. 3M structural (gray) ---- and yes I did wonder ? --next time how the hell do I remove cylinder-head ? ------- not to worry if you do it right ? ----it works. What is so special about STRETCH bolts ? ---NOTHING ---all head-bolts stretch ---BUT the factory found that --when a bolt hits solid resistance ? The stretch is according to pitch on thread. and they posted the optimum. OK we could say that the bolts are of a better grade.--notice that if stretched beyond yield ? new bolt must be used. So you want to know about tensile and yield strength and what not ? lets see if we can smoke James Hansen out of his Canola fields. ---I think he has a laptop out there in the Rapeseed GMO. I know he said he has a library right in the Cab. Funny thing I had the use of a Tinus Olsen testing machine some years back.-----so I know --BUT I do not know how to write it up here. So what exactly did I test on that BIG machine ? --the steel spars that I used in the Bensen Gyrocopter. That was about 1963 --and I am still here ? --JA ? so the steel was ok. Hagar.
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