Why standoffs on CP3 hardware?

[pelagic]

Does anyone know the answer to this? From a mechanical standpoint, I don't understand why standoffs are used. Similarly, why are standoffs used on Cummins exhaust manifold bolts?

 

[LBZ]

Spacing reasons?

 

[bmc1025]

Don't forget the spacers on the transmission crossmembers since 73 on all gm 4wd trucks. The newer trucks have them built into the but though.

 

[bmc1025]

Pure speculation but I think it has something to do with making the bolt less likely to shear. By having a longer bolt it allows more elasticity? I may be way out on a limb though.

 

[clrussell]

Pure speculation but I think it has something to do with making the bolt less likely to shear. By having a longer bolt it allows more elasticity? I may be way out on a limb though.

This is my understanding

 

[pelagic]

You may be right. The only other explanation I can think of would be that a longer bolt is able to stretch more than a shorter one.

 

[clrussell]

You may be right. The only other explanation I can think of would be that a longer bolt is able to stretch more than a shorter one.

Same thing

 

[Ne-max]

Im still lost on timing a cummins cp3

 

[clrussell]

Im still lost on timing a cummins cp3

Just poke around till it goes in the hole

 

[mac2881994]

Just poke around till it goes in the hole

That's what she said

 

[JoshH]

Im still lost on timing a cummins cp3

I used to think it was BS until I heard it fix a very loud and annoying knock first hand.

 

[clrussell]

And here I thought y'all were joking.

 

[Dave c]

It's to catch the soft plug and most debris in case of failure..

 

[Ne-max]

I used to think it was BS until I heard it fix a very loud and annoying knock first hand.

Yep. We recently did a cummins with new ddp sticks, set the valves and timed the cp3. Thing is stupid quite. They say its the back lash but I dont see how when its spinning off the gear non stop.