no, you have to replace them every time
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
It is generally not recommended to reuse head torque bolts on an Astra TS 1.8 or any engine, as these bolts can stretch and lose their integrity during the initial installation. Reusing them can lead to improper torque and potential engine failure. It's best to use new head bolts to ensure a proper seal and reliable performance. Always refer to the manufacturer's specifications and guidelines for the best practices.
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.
Reusing head bolts on a Vortec engine is generally not recommended. These bolts are typically torque-to-yield, meaning they stretch when torqued to specification and may not provide a proper seal if reused. It's best practice to replace them with new ones to ensure optimal performance and prevent potential engine damage. Always consult the manufacturer's guidelines for specific recommendations.
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.