Threadlocker crankshaft bolts

Plus 2 Discussions
1

Does anyone use threadlocker on crankshaft bolts? What type? I have seen the Loctite 262 and the other red “heavy duty” forulas suggested.

Do you also use a threadlocker on the pressure plate bolts? I used the red Loctite on mine pressure plate on the +2.

Bob

2

I may have made my description too vague. I am referring to the flywheel bolts.

Bob

3

If you are racing or autocrossing, use the ARP bolts and loctite red/262 for the flywheel bolts and grade 8 for the clutch bolts with red loctite. That is what Jay Ivey of Ivey Engines told me to do with my Formula Ford.

If it is a street motor, I don’t think its really necessary but you can still do it.

To remove the bolts after torquing, you will need to use a propane torch and heat the bolt heads gently to about 400deg F to melt the loctite to get them off.

Best regards,
Dan Wise
elan 45/7279
Zink Z10 Formula Ford

4

Thanks Dan. That is what I was thinking but I was concerned with removal of the bolts after the threadlocker sets. It is a bit of a pain heating everything to defeat the threadlocker.

This is for street use but I will at least use the 262 on the flywheel bolts (ARP).

I may elect to use the 243 medium strength on the pressure plate bolts.

Bob