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Gaskets And Bolts Snapping Off In Head

SideWaysChef
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SideWaysChef Collaborator

SideWaysChef

Posted
Posted

I just found a bent bolt on my exhaust manifold so decided to undo it to replace it.

What do ya know it snapped off inside the head, YA for me!!!

After taking off the exhaust manifold to try and remove the bolt i managed to snap 2 more

Has anyone else has similar problems with this?

Has anyone tried removing a bolt snapped off in the head?

Im about to attempt to remove it with one of those extractor set of drill bits.

will post how successful this is

ALso wondering if anyone has tried purchasing gasket sets for the RB20

I was qouted $650 for a gasket kit that included everything including the head gasket

no one was able to get me just the exhaust manifold gasket

Abo Bob Grand Master

Abo Bob

Posted
Posted

Yes this happens with lots of Nissans and cars in general.

You drill a little hole in the stud (the bolt part stuck in the head) and then use some easyouts to unscrew them.

Get new studs from your local auto parts shop for about $2.50 each and wind them in.

huddy Veteran

huddy

Posted
Posted

yep had to do it on the ceff... not cheap.. but worth it... IF you're in SA let me know, and i'll give you the phone number of a mobile guy who comes out and does it... cost around 100bux i think for 5 or 6 bolts to get out... "Captain Thread" - absolute champ.

cefiro Experienced

cefiro

Posted
Posted

Can I suggest that you try and scrape a goove into the bolt, depends on how deep it is, but if its snapped off flush at the top you can use a knife and scrape a line in it to use a screwdriver to remove it.

I have donr it with smaller bolts, maybe worth while.

GunMetalR33 Mentor

GunMetalR33

Posted
Posted

Thats a good idea, never though about doing it that way. I dont think it will work with head bolts though, those things are in tight as a nuns ***** :P

Can I suggest that you try and scrape a goove into the bolt, depends on how deep it is, but if its snapped off flush at the top you can use a knife and scrape a line in it to use a screwdriver to remove it.

I have donr it with smaller bolts, maybe worth while.

SideWaysChef Collaborator

SideWaysChef

Posted
  • Author
Posted

Have just dropped the engine out of my car so i can drill these holes nice and straight

Ive already had limited success trying to rip a snapped stud out of the dump pipe

with the easyouts

I wish they hadnt snapped inside the head, otherwise i would have tried that suggestion of cutting a grove in the stud and using a screwdriver

will let you all know what ends up working best

MANWHORE Grand Master

MANWHORE

Posted
Posted

I can't beleive that you had to drop the whole engine just to remove a few bolts. I woulda gone for a compact drill, so I can fit it in the space to drill it straight.

I've seen a few air tool ones that are quite compact.

That would suck. best of luck mate.

GunMetalR33 Mentor

GunMetalR33

Posted
Posted

Droping the engine out :unsure:

I feel for ya dude, what a pain in the a** those bolt have turned out to be.

Have just dropped the engine out of my car so i can drill these holes nice and straight

Ive already had limited success trying to rip a snapped stud out of the dump pipe

with the easyouts

I wish they hadnt snapped inside the head, otherwise i would have tried that suggestion of cutting a grove in the stud and using a screwdriver

will let you all know what ends up working best

SideWaysChef Collaborator

SideWaysChef

Posted
  • Author
Posted

a pain in the arse in deed

i tried using my air drill which is pretty compact, but it started to drill at an angle, due to it sitting up hard against the A/C lines on the firewall

is all good though, wanted to give the engine a freshen up anyways as it was running like poo

i pulled the fuel filter off, and mud poured outta it

YUK!

might have to port the exhaust manafold a bit while im at it

SideWaysChef Collaborator

SideWaysChef

Posted
  • Author
Posted

Well i managed to rip these bolts out of my head.

The first 3 took 20 minutes to do, the last one took me 2 hours due to a drillbit snapping and wegding itself inside the bolt.

anyways the easi-outs worked fairly well for 2 of the bolts. I tried the screwdriller method for the other 2 though and it seemed far easier, and would have made it alot cheaper.

As my bolts had snapped in the head i simply drilled 2 very small holes next to each other and used a flathead screwdriver bit for a drill. it was so easy unscrewing them just using an 8mm socket

I wish i had of tried this way first instead of spending 20 bucks on the easi-outs

DRFT_ceffy Collaborator

DRFT_ceffy

Posted
Posted

theres a company called thread doctor. They are really really cheap and will come to you. They do a professional job and the job the do is very clean.

i had a mate who snapped 4 head bolts and it cost him under $100 to get them all out and re threaded.

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