School Me - Thermo Housing Bolts Removal

[ed1948]

This is for an 86 SS. Aluminum intake. It has been removed before(years ago).
I'm struggling with the housing bolts. Using vibration and penetrating oil I'm only able to get a 1/4 turn using a breaker bar for leverage. While applying pressure I tap the end of the socket. Are the bolt threads longer than the threaded manifold - seems that way. I'd like to use heat but there is too much rubber materials nearby. Right now I applied penetrating oil while trying to enjoy my tomato and cucumber and onion salad. (maybe that's the problem - not enough red meat!)
I'm worried to snap the bolt off. Could I use a battery powered impact without risk? Should I only use the manual method and take my time or just power it off and hope for the best?

 

[wreckrunner]

i just use a 3/8 impact on low power i have been real lucky with that

 

[ed1948]

Thanks wreck, my electric impact worked at finally loosening the bolt. The bolt thread picked up a sliver of aluminum from the intake threads. I'll clean them and use a little anti seize.

 

[axisg]

Keep in mind I have a spare intake here from when my car still had the 305 that you are welcome to if you need it.

 

[airboatgreg]

You were really lucky they came out. What usually happens is the bolt freezes to the housing and what I have done is strike the capscrew with a designated striking instrument(Hit bolts on top with hammer) and cut/break the housing. When you go back together use proper length bolts with anti-seize. Stainless may be a good choice. May have to freshen threads up with a tap.

 

[axisg]

How did it go ?

 

[ed1948]

How did it go ?

Success! It's alive, alive

 

[wreckrunner]

thats great sometimes we get lucky

 

[airboatgreg]

Awesome, glad to hear it
We all need a little luck