I believe these are torque to yield bolts and the specs are: Initial torque to 19 Ft/Lbs Tighten an additional 75 degrees It's also not a good idea to reuse these bolts as they are stretched when tightened.
I believe these are torque to yield bolts and the specs are: Initial torque to 19 Ft/Lbs Tighten an additional 75 degrees It's also not a good idea to reuse these bolts as they are stretched when tightened.
I would not recommend it. The bolts are stretched during the torque procedure.
For all the 2.3, 2.4L QUAD 4 engines, the head bolts are Torque to Yield. The porper torque value is 30ftlbs PLUS a 90 degree turn of the wrench. The bolts must be new every time ( NEVER REUSE OLD BOLTS). The torque values and proper sequence are including in the box the new bolts come with. BUT honestly, the torque value is 65ft lbs like all GM Chevy motors have been for eons.
i have replaced my clutch to 10.5 diemter ,can i re use the morso flywheel/clutch bolts
No There are torque to yield bolts One time use bolts......spend the extra 20 dollars it will save you a headache in the long run
first get new head bolts. they are torque to yield. torque them to 37 ft-lbs and then rotate an additional 120 degrees.
The head bolts will not have the same clamping capabilities, since they were stretched on the first installation. You may blow a head gasket due to the bolts losing torque.
Warning! These are "torque to yield" bolts. Once installed and torqued to spec they yield, or stretch. The bolts, once loosened, cannot be reused. They MUST be replaced with new or they WILL fail. Once you have new bolts, the tightening sequence is 20 ft/lbs, then tighten an additional 90 degrees (exactly one quarter turn).
If they are torque to yield. That means if you torque it to a certain number and then have to turn it ,say, 90 degrees more. the answer is yes because you are stretching the bolts.
You cannot use the old bolts to retorque the heads. They are torqure to yield bolts. You must get new bolts.
Proper way to torque them is to buy new bolts and do them up via instructions that come with head gasket ( they are torque to yield - from mem 30 ftlb then 180 degrees more , but that's just from mem ). If you are not using new bolts you are better off to just do them to about 40ft lb, 50 , then 65ft lb .Not much use toqueing to yield unless you use new bolts...