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!st thing is get the revised head gasket (used on 1993 up) for this engine from VW or Felpro, always use new head bolts or a repeat failure will occur. Using the revised head gasket here is the procedure to torque the head down, it is done in stages. PLease go to this site and read the whole procedure.
Page 3-26 of Chilton's reads:
14. Using no sealer whatsoever, install the new head gasket(s) to the block. Clean, dry and lightly oil all head bolts threads. Install the heads and install the head bolts.
Tighten head bolts in sequence to 50 ft. lbs. (68Nm). Repeat the sequence retightening the bolts to a final torque of 105 ft. lbs. (143 Nm) and repeat the second step to ensure that all bolts are accurately torqued.
torgue chart from chilton (page 3-11) for your engine and year show:
main bearing bolts 85 ft lbs
rod bearing bolts 45 ft lbs
crankshaft damper bolts 135 ft lbs
flywheel bolts 55 lbs
The torque specs should be the same but I have never heard of this before. Make sure you have the head checked for cracks & checked for warpage. It may need to be planed. Be sure to use a top quality head gasket. Good luck!
remember new head bolts also, torque to yeild bolts. i would recommend
to get a service manual for torque specs and procidures for removal of
heads. also head gaskets are leaking for a reason have heads checked for
straightness and for cracks at local machine shop, keep all pushrods
and rockers numbered for reassembly, pushpods are different and will
cause major engine damage if mixed up.
Go to autozone.com create a free account put in you cars model year etc... then look at the free manual for replacing head gasket it will have a bolt tightening sequence diagram. also they usually have to be taken off in a paticular sequemnce to avoid warping the head. If aluminum heads they usually recommend new head bolt set and having the head shaved (Leveled)
Torque new cylinder head bolts in sequence to 44 ft lb. Loosen bolts approximately two turns, then torque bolts in sequence to 44 ft lb. Turn bolts an additional 90 degrees in sequence, then an additional 90 degrees
hello,230e with engine 102.982,cylinder head bolt,double hexagonal socket m12, stage 1, 55 newton meter,stage 2 90 degrees stage 3 90 degrees,4 pcs. bolt with m8 tighten to 25 nm.ref. technical data year 1993,ty
Head Bolt Torque
For your 1994 Oldsmobile Cutlass Supreme (3.4L SFI DOHC):
Foot pounds (Final torque)
Torque sequence --------- | 6 2 3 7 | | 5 1 4 8 | --------- Step 1: torque in sequence to 33 Ft/Lbs Step 2: turn an additional 90 degrees Recheck final torque in sequence *** CAUTION ***engine uses Torque To Yield head bolts (TTY) thatpermanently stretch during the initial installation.New head bolts must be used when cylinder head isreplaced or re-installed to obtain proper torque.
Foot pounds (Final torque)
Torque sequence --------- | 8 4 1 5 | | 7 3 2 6 | front --------- of engine | 6 2 3 7 | | 5 1 4 8 | Step 1: torque to 40 Ft/Lbs --------- Step 2: turn an additional 90 degrees Recheck final torque in sequence *** CAUTION ***engine uses Torque To Yield head bolts (TTY) thatpermanently stretch during the initial installation.New head bolts must be used when cylinder head isreplaced or re-installed to obtain proper torque.