About a year ago I was putting my upper intake on with a crappy torque wrench and the front bolt snapped. Do you think this would cause a problem or maybe a little vacuum leak???
Snapped intake bolt
- Thread starter 95Cobra302
- Start date
99FiveOh
15 Year Member
It's possible. But you can easily check it by spraying some carb cleaner around that area and see if the idle changes.
I don't drive it much since it isn't my daily driver anymore, but I checked the vacuum and it's about 18 hg. The needle doesn't move much, but maybe I think it should be a little higher.
drakesdad
Member
If you are concerned just pick up some reversible drill bits and get that bolt out....worst case..heli coil it if it strips out.....just an option...
I was thinking that if the bolt head broke that there may be a stub that can be gripped if the intake was removed.
99FiveOh
15 Year Member
Those damned easy outs never work, at least for me. I worked in the auto repair industry for many years and I could never get it to work. Best to get some hardened carbide bits and drill it out and retap it or helicoil it as suggested.
drakesdad
Member
depending on where it "snapped....either way..intake comes off , if there is a nub...tack weld another bolt...(used this method before
) or drill helicoil....hell my trans has about 5 helicoils in it due to short bolts stripping the threads......2 to 3 hour job taking your time......It may not be the issue but it does not take much for a leak and pressure is not being placed on that section of the intake......worth doing...
Plus it would drive me nuts thinking about it....
99FiveOh
15 Year Member
Labora
Founding Member
I tried to use a ez out on mine. Did not work actually made things WORSE the ezout broke.
Had to remove the heads and take it to a machine shop, they kind of put the fear in me to not do that again. :?
They where able to helicoil it.
Had to remove the heads and take it to a machine shop, they kind of put the fear in me to not do that again. :?
They where able to helicoil it.
Zero Signal
Active Member
Yeah, you spend lots of time trying to get it out only to give up and drill it, then you break the tap off in the new hole. Talk about a fun weekend. If it isn't leaking, don't touch it.
99FiveOh
15 Year Member
Labora said:
What did that end up costing you to get the machine shop to fix it? I was out earlier taking my explorer motor apart getting it ready for some routine rebuild work and I broke the passenger/front lower intake bolt in the head. Not enough to grab with vise grips either!
Labora
Founding Member
15$ I spent that much on drill bits and ezout previously, not mention a lot of time wasted time drilling carefully.
95Vert383AOD
15 Year Member
Happened to me and i removed the whole intake. ARP Studded intake bolts wont break no matter how crappy your torque wrench is. What i did was after removing the intake i PB Blastered the broken bolt....then heated it up a little with a torch. Then using a hammer and a wood chisel tool. I wacked the edge of the broken bolt to get it to reverse spin. Oddly enough ive gotten this to work a couple of times. Rule of thumb is if you're putting a performance intake, or heads on your car then do yourself a favor and get decent bolts.
Since the intake bolt goes straight up and down theres usually a good little amount of meat on the bolt still if it snaps off in the head. But you will have ro remove the intake. I hate using Helicoils, Drills Etc. if i don't have to.
Since the intake bolt goes straight up and down theres usually a good little amount of meat on the bolt still if it snaps off in the head. But you will have ro remove the intake. I hate using Helicoils, Drills Etc. if i don't have to.
Bosko5.0
Active Member
I broke a bolt on the front driverside head After alot of drilling and using a extractor still nothing so We drilled to re tap it and got the pieces out but the threads wouldn't hold So I just got a longer bolt to reach the good threads and holds torque great. Still no leaks. 
99FiveOh
15 Year Member
drakesdad
Member
been there, brand new TFS heads...cheap headers didn't line up..even after drilling.....rear drivers side broke coming out.......now when I take the headers off I need a 3/8 and a 7/16 wrench....
95Vert383AOD
15 Year Member
Oh ouch ...yeah i had that problem taking apart my 351 junk yard block....Loosen the bolts after the engine has warmed up. Or ise a torch on the bolt heads. ((Blue Wrench))
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