supra head gasket questions+ rebuild

Andy C · 04-21-2008, 07:27 AM

hey t.ortlieb, just to let you know skimming the head does not remove the warpage if you head is warped skimming wont help this just provides a flat smooth finish for the gasket to seal, if my head was warped id buy ia new one.

hey supramacist in just about to do some more lapping ill post some pictures of me lapping the block so you can see what im doing and if im doing it right etc.

are you saying now ive started with 1200 grit paper i shouldnt now chage to a rougher paper to speed things up.

im using a stock gasket with arp studs to seal the head dont trust mhg on my block dont think i can get it clean enough for a metal one.

Q> when i undo the crank bolt and remove the pulley wont i lose my tdc positon???? confused , will i have to set the tdc by eye then replace the Pulley to 0. thnaks suprmacist your being a great help.

just for your info mate, the head is having a skim, a clean a new o ring in the cam position sensor and a couple of helicoils in the exhaust side.
the guy reckons if the engine was running sweet before not to touch the valves etc as this can wear out the bottom end, and to ba honest i have heard laot about rod knocking after a head gasket replacement and nobody needs this, thats a engine removal job, not for the faint hearted me thinks.

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04-21-2008, 07:27 AM	#32
Andy C 3" Exhaust Join Date: Apr 2008 Location: sudbury suffolk uk Posts: 68	hey t.ortlieb, just to let you know skimming the head does not remove the warpage if you head is warped skimming wont help this just provides a flat smooth finish for the gasket to seal, if my head was warped id buy ia new one. hey supramacist in just about to do some more lapping ill post some pictures of me lapping the block so you can see what im doing and if im doing it right etc. are you saying now ive started with 1200 grit paper i shouldnt now chage to a rougher paper to speed things up. im using a stock gasket with arp studs to seal the head dont trust mhg on my block dont think i can get it clean enough for a metal one. Q> when i undo the crank bolt and remove the pulley wont i lose my tdc positon???? confused , will i have to set the tdc by eye then replace the Pulley to 0. thnaks suprmacist your being a great help. just for your info mate, the head is having a skim, a clean a new o ring in the cam position sensor and a couple of helicoils in the exhaust side. the guy reckons if the engine was running sweet before not to touch the valves etc as this can wear out the bottom end, and to ba honest i have heard laot about rod knocking after a head gasket replacement and nobody needs this, thats a engine removal job, not for the faint hearted me thinks.