How do I extract...

[71tahoe]

threaded items in aluminum manifolds? On one manifold I have a water neck stud that won' turn. And no, I didn't use anti-sieze because I was unacquainted with it 19 years ago.

The other I have a pipe plug that the PO aparently didn't use any teflon tape or pipe dope or anything else. It has some issues with the square hole. It's really more of an octagon now.

Will heat work or do I run the risk of warping the intakes? I really don't want to ruin the threads so please, only advice that's not counter productive. Jokes welcome though.

[mclairmo]

I have seen extractor bits that bite into the stud/plug and then back them out. Have you also drenched the stud and plug with WD40 or liquid wrench? You need to break the de facto weld that has developed between the stud/plug and the aluminum intake. I think heat from a propane torch would help and would likely NOT warp the intake since it is very thick and the propane torch does not get too hot.

[Jacfourteen]

I'd try soaking it with penetrating oil then heat it and give it a good whack with a hammer and punch then try to back them out. If there is any protruding out then you might be able to use a small pipe wrench on it. good luck!

[Jacfourteen]

also I forgot to mention that you may be able to file/grind a slot in it and then use a screwdriver bit in a ratchet to take it out.

[cparman]

is the water outlet off completely? If it isnt remove it. If there is a nut or a head on the stud cut it off with a cut wheel/hack saw etc. Then get the water outlet out of the way. Once this is done, heat the stud with a touch, until it is ALMOST RED. have a set of vise grips all ready to clamp on, and when you turn off the torch pour cold water on it. clamp the vise grips on the stud, and rock it back and forth to break it loose. slowly keep rocking it and unscrewing it at the same time. IF the threads come with it, you can always helicoil the hole. The pipe plug might work the same way. might suggest you get a bolt bigger than the hex that was in it and grind it to fit.make the fit tight so you need to drive it in with a hammer. heat the plug, pour cold water on it, and then drive the bolt in, use the bolt to unscrew the plug. by the way there is a bunch of us who did not know about antisieze 20 years ago.

[truckdude239]

take it to a machince shop i can see your warping that manifold heating the bolts

[mclairmo]

Machine shop services could cost more than another good used intake or even a new cheapy one off Ebay.

[passthebuck]

My favorite is to mig weld a nut onto the end of the broken bolt. On high heat, lower wire speed it heats the bolt remains hot, thereby breaking the rust bond inside the part. Then just put a wrench on the nut & after it's cooled a bit & spray a bit of Release All & out it should come. As for your stuck pipeplug, depending on what it's made of, you potentially could do the same thing. Good luck!

[cdowns]

not much danger of warping manifold if you just keep the flame up off the manifold while heating the stud to red// instead of water i'd spray something like PBblaster gibbs oil or even vineagar to cool(shrink) the stud and it will b drawn down the threads to help release // i just clamp on the vise grips

for thr pipe plug i'd drill a small hole gradually building up sizes 1/8 -1/4- 5/16 while drilling keep spraying the plug as the heat generated by drilling will draw the lubricant dorn the threads// easy way after thayt if you have a lefthand tap and bolt tap the threads and tighten the bolt to release the plug

[QKENUF4U]

hmm good luck w/ this one... my old camaro had an alum. intake that someone put a steel plug in and i had a 3ft breaker bar with cheater on it and it wasnt moving..... if its steel / alum then its welded (disimilar metals) together by now and i dont think you can get them apart now.. might have to cut it off, drill it out and heli-coil/time-sert it....

[tim21391]

id soak it in pb blaster for a few days then try that welding a bolt on it thing

[Tx Firefighter]

I'm pretty good at this kind of thing. I haven't ever seen one yet I couldn't get out.

Throw the manifold into an old oven and heat it to 400 degrees for an hour. After it cools down, soak the problems in a good penetrant. WD40 is not a good penetrant. Get something like Liquid Wrench or PB Blaster. Now, weld a nut onto the stud nice and hot. Once it cools down, screw it out.

For the pipe plugs, get a big nut like a 1 inch wrench size. Grind the old fitting down even and square and weld the nut onto it. Remove fitting.

I did this old intake a month ago using these tricks.

[cparman]

DUDE that looks like an OLD SBC manifold. Looks great in the finished form!!!

Originally Posted by Tx Firefighter

I'm pretty good at this kind of thing. I haven't ever seen one yet I couldn't get out.

Throw the manifold into an old oven and heat it to 400 degrees for an hour. After it cools down, soak the problems in a good penetrant. WD40 is not a good penetrant. Get something like Liquid Wrench or PB Blaster. Now, weld a nut onto the stud nice and hot. Once it cools down, screw it out.

For the pipe plugs, get a big nut like a 1 inch wrench size. Grind the old fitting down even and square and weld the nut onto it. Remove fitting.

I did this old intake a month ago using these tricks.

[Tx Firefighter]

I figure it's from the 60s era. I wanted something old to match the theme of my 63 truck.

[Jacfourteen]

Originally Posted by Tx Firefighter

I figure it's from the 60s era. I wanted something old to match the theme of my 63 truck.

That's funny I have the same manifold on my truck, it came with the engine when I got it. The guy who built my engine told me that it is a knock off of the original camaro z-28 manifold and said that it is comperable in perfomance to a newer performer manifold. He told me that they were built in the late 60's-early 70's. The only downside to these is that I have an HEI but it won't clear the runner.

[71tahoe]

Thanks guys. I have everything mentioned except the time right now. I'll start with the intake that's not attached to an engine and see how it goes this weekend.

[bigsnookmaster]

Originally Posted by Tx Firefighter

I'm pretty good at this kind of thing. I haven't ever seen one yet I couldn't get out.

Throw the manifold into an old oven and heat it to 400 degrees for an hour. After it cools down, soak the problems in a good penetrant. WD40 is not a good penetrant. Get something like Liquid Wrench or PB Blaster. Now, weld a nut onto the stud nice and hot. Once it cools down, screw it out.

For the pipe plugs, get a big nut like a 1 inch wrench size. Grind the old fitting down even and square and weld the nut onto it. Remove fitting.

I did this old intake a month ago using these tricks.

Or, you can just send it to Kevin and he can fix it for you! Lol