2 Broken Intake Manifold Bolts
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 2,330
Likes: 6
From: Long Island NY
2 Broken Intake Manifold Bolts
I can't believe this happened. The front 2 intake manifolts bolts broke. The front ones on each side. All the rest came out OK. I bought Sears 'Bolt-Out', it's helping but still can't get the manifold off. The war continues... :cry
Team Owner
Joined: Sep 2003
Posts: 88,393
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From: eville in
Re: 2 Broken Intake Manifold Bolts (mvftw)
good luck, don't get in hurry... if you apply heat ''don't'' over heat, propane
torch works good. been lookin' at those bolt extractors let use know how it
comes out.....
torch works good. been lookin' at those bolt extractors let use know how it
comes out.....
Advanced
Joined: Nov 2003
Posts: 50
Likes: 0
From: rochester ny
Re: 2 Broken Intake Manifold Bolts (mvftw)
if enough of the bolt is showing at the top of the hole, you can have someone weld a nut to the top of it. the weld in the center of the nut should be strong enough to remove the bolt.
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 2,330
Likes: 6
From: Long Island NY
Re: 2 Broken Intake Manifold Bolts (comp)
Well the Sears 'Bolt-Out' didn't remove the bolt. I managed to get the intake out by pushing the back up till the front bolts bent forward. I also managed to remove one of the bolts with a vise-grip, but the other one doesn't want to play nice. I don't have a welder. What if I use a propane torch, should I heat the bolt and then let cool, or heat the head, or not use a torch at all? Last resort will be to drill & tap :(
Race Director
Joined: Nov 2000
Posts: 11,872
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From: Waterloo ontario Canada
Re: 2 Broken Intake Manifold Bolts (mvftw)
Heat works great to loosen a stuck bolt but do not use water a trick that works on stuck bolts . Just heat the bolt and remove it hot, heat the head and bolt together then with vise grips work at it until the heat breaks it loose.
Team Owner
Joined: Sep 2003
Posts: 88,393
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From: eville in
Re: 2 Broken Intake Manifold Bolts (norvalwilhelm)
try to heat the head around the bolt, you do have something to get vise grips
on it sounds like. back to heating around the bolt. spray pen. oil on it it will
kind of ''wick'' in BE carefull of FIRE, all the good pen. oils i use are flammable
do it a few time's ,,heat,spray,etc then heat and try to move bolt a nudge to
tighten can help, if no go apply heat to head, and a ice cube on the bolt, wear
gloves etc, just be carefull and take your time
on it sounds like. back to heating around the bolt. spray pen. oil on it it will
kind of ''wick'' in BE carefull of FIRE, all the good pen. oils i use are flammable
do it a few time's ,,heat,spray,etc then heat and try to move bolt a nudge to
tighten can help, if no go apply heat to head, and a ice cube on the bolt, wear
gloves etc, just be carefull and take your time
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Team Owner
Joined: Apr 2002
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From: Zionsville, PA NRA Life Member
St. Jude '03-'04-'05-'06-'07-'08-'09-'10
Re: 2 Broken Intake Manifold Bolts (mvftw)
Where do you get parafin wax, a good auto supply store or like a home depot?
:seeya Jeff
Melting Slicks
Joined: Jul 2000
Posts: 2,107
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From: Lancaster PA
Re: 2 Broken Intake Manifold Bolts (mvftw)
Heat the bolt itself and while it is red hot spray with WD 40. Be careful not to have the flame still there as WD is flammable. As the WD cools the bolt it will suck into the threads and with a little luck it will come loose. Good Luck, Craig
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From: In Dreams There Is Truth Ohio
Re: 2 Broken Intake Manifold Bolts (CF6873)
I don't think you need to get the bolt red hot, just hot enough to expand and break the rust. I don't think spraying wd40 will accomplish much, all that will do is create a lot of smoke and the heat will evaporate wd40 instantly.
Melting Slicks
Joined: Jul 2000
Posts: 2,107
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From: Lancaster PA
Re: 2 Broken Intake Manifold Bolts (GDaina)
George, I learned about the WD40 method from a local engine builder who said he uses it to remove the oil galley plugs on the rear of the block. He said when using that method he can extract them with a 1/4" rachet with minimal effort. I thought it might be worth a try for other situations. Craig
Le Mans Master
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From: Standing still with all my might Texas
Cruise-In X Veteran
St. Jude Donor '09-'11
Re: 2 Broken Intake Manifold Bolts (CF6873)
Heat the bolt itself and while it is red hot spray with WD 40. Be careful not to have the flame still there as WD is flammable. As the WD cools the bolt it will suck into the threads and with a little luck it will come loose. Good Luck, Craig
This is how I got the rusted/corroded/broken studs out of my exhaust manifolds. Just keep repeating the process until the bolt/stud will start moving with minimal pressure (less than it takes to break or strip it again).
The bolt and the manifold will expand/contract at different rates when heated and cooled, this helps break the bond between them and also allows the WD-40 gain a little more access into the threads. It works but will you should also plan on a little time for :cuss too.
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From: Swords Check/Saws Check/Clubs Check/Claws Check/Hatred Check/Anger Check/Murmaid Check/Murder Check
Cruise-In IV Veteran
Cruise-In VI Veteran
Re: 2 Broken Intake Manifold Bolts (mvftw)
Had that happen earlier this year on my dad's car. remember... the bolts in the four corners are SHORTER :banghead: I ended up breaking off an easy out so I gave up and took it to a machine shop to have it fixed :leaving:
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 2,330
Likes: 6
From: Long Island NY
Re: 2 Broken Intake Manifold Bolts (SnoDrgn)
Not the answer I wanted to hear.... But I know what your saying. The four corners go into the water jacket, the bolts threads must be treated. I'm going to use a hand propane torch tonight...Hope I have good news tomorrow...
