getting tired of get loosen exhaust flange bolts and nuts

[Nacho-RT74]

I even have lost them driving on highway!..

I think this is the 10th gasket in 7 months I have to replace because they get burnt due the leak

and laugh about this... when nuts get loosen but not lost, they get stuck trying to remove them to replace the gasket, untill break the bolt.

how the hell I can get lost nuts driving around and when just loosen I try to remove intentionally, they simply don't come out!!!!!

WHAT DO YOU DO!!!!???

[JB400]

Are you running headers or factory manifolds?

[Nacho-RT74]

factory HP manifolds

[Dino]

Mine are coming loose as well.  They've always come loose so now I'm going to add a second nut to each bolt to counter torque them.  Hopefully that'll be the end of that.

[BrianShaughnessy]

Brass nuts.  Torque to spec.     Retorque after heat / cool down.

[John_Kunkel]

I'd use a mechanical lock nut or, better yet, a castellated nut and cotter pin.

http://www.aircraftspruce.com/catalog/hapages/an363.php

[Nacho-RT74]

some other solution I tried was marsden nuts, but didn't work either... I'm at this moment with double nut.

never have seen the other nuts locally.

Fine thread maybe ?

[randy73]

Use lock washers w/hi-temp loctite.