Any tips for replacing the exhaust collecter gasket?

[JoeR]

I have an exhaust leak and I have determined that its coming from the collector and not the manifold (thank god) Any tips or tricks on how to replace it?

[datzenmike]

This is the dual down pipe into one before the bend? Just take the three nuts off lower pipe remove what's left of the old gasket and replace with new, put back together.

 

The old bolts can be so heat rusted that they snap off so expect and be ready for this. As long as there is some of the stud left you can heat around it with a propane torch and get it very hot then turn out with vice grips. If you have a set of acetylene torches try to get the metal red hot. I replaced mine with stainless studs and nuts.

 

 

I removed your double post from 8 min ago.

[josh_t]

make sure you make that gasket surface nice and clean too. in automotive class we had a 3m roloc pad for removing gaskets. it wasnt the sanding pads. more like a buffing pad. it got everything off quick and easy but didnt do anything to the metal.

[ggzilla]

Wait for the exhaust to cool off. An hour or two should do it. It cools off quicker than cast iron manifolds.

[datsun mechanic]

..........one thing can lead to another on that job...i've had to take off manifold / torch to remove / some times tap out for larger stud/ i think is was 3/8?

then the bolts/studs at the cyl head can need attention/............egr tube at back head/on my own 720 i cut with hacksaw then wrap with coffee can metal and clamp it.............................