Removing air pump bolts from exhaust manifold ports

Tessier · Post by **Tessier** » Fri Jan 20, 2023 6:01 am

I’ve removed 6 of the 7 bolts but the last one sheared off leaving a mangled stub. I was able to stuff it with a smaller bolt until I can figure out how to remove it. Tried soaking it with lube, using a torch to heat it up, and using an easy out tool.

Any other suggestions?

84 GW V8 stock

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Harry Dawg · Post by **Harry Dawg** » Fri Jan 20, 2023 7:47 am

Do you have access to a welder? You may be able to weld a small bolt to the remnants of the bolt.

Why did the easy out tool not work? Couldn't get it to bite into the old stub?

tgreese · Post by **tgreese** » Fri Jan 20, 2023 11:30 am

1/4" carbide bit in a die grinder. Grind away enough so you can collapse the remains of the bolt.

will e · Post by **will e** » Fri Jan 20, 2023 1:37 pm

At this point you might find it is easier to fix if you remove the manifold.

Tessier · Post by **Tessier** » Fri Jan 20, 2023 1:57 pm

Harry Dawg wrote:Do you have access to a welder? You may be able to weld a small bolt to the remnants of the bolt.

Why did the easy out tool not work? Couldn't get it to bite into the old stub?

The easy out threads were tearing off.

I’m going to try to weld next.

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Tessier · Post by **Tessier** » Fri Jan 20, 2023 1:57 pm

will e wrote:At this point you might find it is easier to fix if you remove the manifold.

Yeah, there really isn’t that much room to work!

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Tessier · Post by **Tessier** » Fri Jan 20, 2023 1:59 pm

tgreese wrote:1/4" carbide bit in a die grinder. Grind away enough so you can collapse the remains of the bolt.

Yeah, that would have to be with the manifold removed. I’m really trying to avoid that as it presents its own problems with the manifold mounting bolts…

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Dr.Bob · Post by **Dr.Bob** » Sat Jan 21, 2023 7:33 pm

When mine snapped-off, I cut the bolt flush, then tapped the hole in that banjo-bolt and plugged it with a bolt and some high-temp rtv around the threads.

1978J10REDWHITE · Post by **1978J10REDWHITE** » Mon Jan 23, 2023 10:41 pm

I had similar issue, had to remove it to get access it, to get good bite on internal threads and chisel out what was there.
Had to heat it up too, and PB Blaster penetrating oil.
When you put it back together use anti- seize paste.

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Removing air pump bolts from exhaust manifold ports

Removing air pump bolts from exhaust manifold ports

Re: Removing air pump bolts from exhaust manifold ports

Re: Removing air pump bolts from exhaust manifold ports

Re: Removing air pump bolts from exhaust manifold ports

Re: Removing air pump bolts from exhaust manifold ports

Re: Removing air pump bolts from exhaust manifold ports

Re: Removing air pump bolts from exhaust manifold ports

Re: Removing air pump bolts from exhaust manifold ports

Re: Removing air pump bolts from exhaust manifold ports