LUK SMF pressure plate bolt

[riotwarrior]

I can tell you they are not just standard grade 8 bolts. The heads are oversize. 47 ft lbs is what LUK said to go to.

did they give indicqtion as to why one bolt failed?

Can you get ARP bolts.or studs?

 

[laserjock]

Bolt failed because it torqued over twice its rated torque (as per the misprinted package). As to why the other seven torqued, your guess is as good as mine. I can tell you several of them stretched and "felt funny". As much as I like to tell people I use the tighten it up till it feels funny and back it off a little, I try not to do that...except on wheel bearings. [emoji6]

They are sending me a new set so no need to go hunting. Finding a partial threaded bolt that short was proving a challenge.

 

[laserjock]

Just to close this out. New bolts actually came today. Next day air.

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I couldn't measure the stretch of the old bolts. My mic is too short. Oh well.

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All done.

 

[riotwarrior]

I sooooo hate you.....and damn that is a saweet piece ya got there ...

 

[Greg5OH]

could you measure how much distance from the center of the bolt hole to the outside edge of the machined surface of the flywheel you have?
just a quick mental check for me before i pull the trigger on a PSD pressure plate and disc..

 

[laserjock]

Center of the pressure plate bolt? Wish you would have asked me yesterday. It's kinda hanging in the frame now. How good of a measurement do you need? Like ruler or break out the calipers?

 

[Greg5OH]

prefer caliper

 

[laserjock]

I'll see what I can do. It may take me a day with stuff going on. Poke me if you don't hear from me in a day or so.