Benjamico

Stupid question, but have you checked the cat you took off to see if the ring shaped (Doughnut) gasket is stuck in the recess?

mikey k

That's the flat gasket other end of the cat/decat though.
The doughnut gasket is ALOT bigger and designed to allow the cone in the cat/decat to rotate around.
The springs are there to keep enough tension to sea lit but still allow movement.
If you don't have them how do you know how much torque to apply and how are you going to prevent crushing the doughnut?

m1bjr

You cant crush the donut, you donut

Thats why Honda fit those limited length bolts and springs.
You tighten the nuts right up on the spring loaded bolts until they hit a backing washer.
You cannot over tighten them and collapse the gasket cone or the springs

Then you torque them up if you can, but its no biggie, just use some common sense and dont swing on them you'll be fine.

As Mike rightly says its to allow some angular movement as the engine twists on its rubber mounts.
If you rigid mount it something else will break with the stress, probably your manifold.

Steve.

mikey k

THat's my point if you replace the spring bolts with normal ones you will probably crush the doughnut you doughnut

m1bjr

Krispy Kreme.

Mmmmmm

cat5cable

This post has just saved me a shed load of problems

cheers guys

ginger