Can I reuse flywheel bolts?
#1
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Can I reuse flywheel bolts?
Hey All,
I am getting ready to mate my transmission and engine. Can I reuse the flywheel to crank bolts and the pressure plate to flywheel bolts?
Thanks,
-Raj
I am getting ready to mate my transmission and engine. Can I reuse the flywheel to crank bolts and the pressure plate to flywheel bolts?
Thanks,
-Raj
#3
Cpt. Slow
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Apparently some flywheel bolts on other cars are torque-to-yield units.
Meaning you torque the bolts to the point that they begin to yeild, or stretch, making them a single use bolt.
The Miata does NOT use this type of bolt, and unless otherwise damaged, can be reused a number of times.
Meaning you torque the bolts to the point that they begin to yeild, or stretch, making them a single use bolt.
The Miata does NOT use this type of bolt, and unless otherwise damaged, can be reused a number of times.
#13
I re-use them. Never had an issue. Haven’t been to ---- about the torque ether. I Also started using lock tight green sleeve retainer with stock pulleys.
With the ATI dampers however the pulley is a very tight interference fit. I use ARP molly lube to get it to pull on and I use one bolt to get it pressed on then put another in and torque it. I don’t think those things would come loose if you took the bolt out and lost the woodruff key they fit so tight.
I had my first 1.6l crank nose snap off in 1994. About 15k miles post dealer performed timing belt change. And I have seen multiple failures and stretched bolts on small nose 1.6l. The bolts are much smaller diameter than 1.8l.
The early 1.6 to 1.8l crank pulley bolt size difference is huge
Bob
With the ATI dampers however the pulley is a very tight interference fit. I use ARP molly lube to get it to pull on and I use one bolt to get it pressed on then put another in and torque it. I don’t think those things would come loose if you took the bolt out and lost the woodruff key they fit so tight.
I had my first 1.6l crank nose snap off in 1994. About 15k miles post dealer performed timing belt change. And I have seen multiple failures and stretched bolts on small nose 1.6l. The bolts are much smaller diameter than 1.8l.
The early 1.6 to 1.8l crank pulley bolt size difference is huge
Bob
#16
Putting on the ATI damper though it requires so much torque to just get the thing pulled on it tends to gall under the head of the bolt. I install with a washer to snug it up with an impact then use a different bolt to apply final torque.
Bob
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