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-   -   CRAP! Busted alllen head bolt from head to block. What is the best way to get it out? (https://rennlist.com/forums/944-turbo-and-turbo-s-forum/618957-crap-busted-alllen-head-bolt-from-head-to-block-what-is-the-best-way-to-get-it-out.html)

JohnKoaWood 02-27-2011 01:11 AM

Well, now that I see the pics... damn.. if it makes you feel any better I just re-installed the head on my NA, want to guess the ONLY spot weeping any coolant... exact same frigging bolt... I am considering the drill/helicoil/new bolt route as well, although there isn't much in the way of space in the head there for a larger bolt head!

Call me tomorrow, an we can kick around some ideas!

OH, and for cleaning everything up, I used Permatex gasket removal gell and a scuffing pad.. add elbow grease and the block / head / cam tower will SHINE!

http://reutterwerk.com/forums/attach...1&d=1297400781
http://reutterwerk.com/forums/attach...1&d=1297360744

I had my head rebuilt, but I believe you already have a replacement head right? (not to mention it appears your #1 exhaust isn't fully closed!)

Tom M'Guinn 02-27-2011 01:15 AM

No need for a bigger bolt head. You drill it bigger for the helicoil, but then the helicoil insert brings it back down to a perfect M8 like the original...


Originally Posted by JohnKoaWood (Post 8336712)
Well, now that I see the pics... damn.. if it makes you feel any better I just re-installed the head on my NA, want to guess the ONLY spot weeping any coolant... exact same frigging bolt... I am considering the drill/helicoil/new bolt route as well, although there isn't much in the way of space in the head there for a larger bolt head!

Call me tomorrow, an we can kick around some ideas!

OH, and for cleaning everything up, I used Permatex gasket removal gell and a scuffing pad.. add elbow grease and the block / head / cam tower will SHINE!

http://reutterwerk.com/forums/attach...1&d=1297400781
http://reutterwerk.com/forums/attach...1&d=1297360744

I had my head rebuilt, but I believe you already have a replacement head right? (not to mention it appears your #1 exhaust isn't fully closed!)


Crazy Eddie 02-27-2011 01:27 AM


Originally Posted by Tom M'Guinn (Post 8336722)
No need for a bigger bolt head. You drill it bigger for the helicoil, but then the helicoil insert brings it back down to a perfect M8 like the original...

Hey Elliott
Hope all is well
Sorry about your busted bolt .. Tom helped me, when I was dumb enough to try to remove a water pump stud, out of the block, that in retrospect, was perfectly fine:banghead:
Luckily, I was able to drill and tap to the orig size, but I did use those Heilcoils on the timing belt cover threads that are in the block. The freakin dealer drilled them out, and never replaced the thread. They worked like a charm !! :thumbsup:
Good luck bud
Regards
Ed

Techno Duck 02-27-2011 01:31 AM

This one is a pretty common one.. stupid waterjacket design.

Anyhow as mentioned it looks like you should be able to get a pair of vice-grips on it. I heated it up as much as i could using a propane torch and it came right now. The best advice i can offer is to make sure you use a GOOD pair of vicegrips with a good set of teeth on the jaws.

http://img.photobucket.com/albums/v1...b/IMG_5994.jpg

http://img.photobucket.com/albums/v1...b/IMG_5996.jpg

ehall 02-27-2011 01:31 AM


Originally Posted by JohnKoaWood (Post 8336712)
Well, now that I see the pics... damn.. if it makes you feel any better I just re-installed the head on my NA, want to guess the ONLY spot weeping any coolant... exact same frigging bolt... I am considering the drill/helicoil/new bolt route as well, although there isn't much in the way of space in the head there for a larger bolt head!

Call me tomorrow, an we can kick around some ideas!

OH, and for cleaning everything up, I used Permatex gasket removal gell and a scuffing pad.. add elbow grease and the block / head / cam tower will SHINE!

http://reutterwerk.com/forums/attach...1&d=1297400781
http://reutterwerk.com/forums/attach...1&d=1297360744

I had my head rebuilt, but I believe you already have a replacement head right? (not to mention it appears your #1 exhaust isn't fully closed!)

#1 has a LOT of carbon crap on it. I have some serious(1/8 inch thick) carbon build up on #4 piston top. #'s 2 and 3 have some light carbon. What's the best way to remove that crap without getting it inside the block?

Yep, the head is brand new with great machine work, o-ringed and larger(2.7ltr) intake valves. I'll take your advice on the cleaning of the rest. I have to pull the front crank seal as well. There's a good amount of leakage there.
Obviously I'm doing the wp/gasket/belts and rollers and any other front seals that need replacing. I need a seal driver though. What do you use to get them squarely into place?

ehall 02-27-2011 01:37 AM


Originally Posted by OmniGLH (Post 8336692)
It looks like you've got enough protruding - I'd try Vise-Grips personally. Save drilling and stuff for a last resort, as there's always a good risk with that of drilling in crooked and screwing up the threads in the block there.

Soak it for a bit (overnight) in PB Blaster to try to break it down and loosen it up a bit.

Yep! Soaking now! I'm going to try to heat and grip first. It looks like a lot of guys have had success with that, but I ain't skeered! I'll drill that bitch like BP on a budget if I need too!:roflmao::cheers:

ehall 02-27-2011 01:41 AM


Originally Posted by Crazy Eddie (Post 8336737)
Hey Elliott
Hope all is well
Sorry about your busted bolt .. Tom helped me, when I was dumb enough to try to remove a water pump stud, out of the block, that in retrospect, was perfectly fine:banghead:
Luckily, I was able to drill and tap to the orig size, but I did use those Heilcoils on the timing belt cover threads that are in the block. The freakin dealer drilled them out, and never replaced the thread. They worked like a charm !! :thumbsup:
Good luck bud
Regards
Ed

How could you get that hideous stud chromed if you didn't pull it!:to_order::evilgrin::icon107:

I may go without belt covers this time. I have the belly pans and I'd prefer to "F.O.D. walk" the belts, rather than find out too late.

ehall 02-27-2011 01:43 AM


Originally Posted by Tom M'Guinn (Post 8336706)
They are missing in PET. See here for details though:

https://rennlist.com/forums/944-turb...lt-on-pet.html

Seriously, you may be the front runner for 951 member of the year! Thank you!:bowdown:

ehall 02-27-2011 01:45 AM


Originally Posted by Techno Duck (Post 8336745)
This one is a pretty common one.. stupid waterjacket design.

Anyhow as mentioned it looks like you should be able to get a pair of vice-grips on it. I heated it up as much as i could using a propane torch and it came right now. The best advice i can offer is to make sure you use a GOOD pair of vicegrips with a good set of teeth on the jaws.

http://img.photobucket.com/albums/v1...b/IMG_5994.jpg

http://img.photobucket.com/albums/v1...b/IMG_5996.jpg

yep! got em!
I need to find a cheap propane torch. Anyone got a good deal on one from some big chain store?

ehall 02-27-2011 01:50 AM

BTW, what is the sensor protruding into that water jacket? I may need to replace mine/

theedge 02-27-2011 04:14 AM


Originally Posted by ehall (Post 8336771)
BTW, what is the sensor protruding into that water jacket? I may need to replace mine/

Its called the DME temp sensor. Used to sense coolant temp for fueling. Quite important. And also not too expensive, $15-20 I think.

ramius665 02-27-2011 09:59 AM


Originally Posted by ehall (Post 8336746)
#1 has a LOT of carbon crap on it. I have some serious(1/8 inch thick) carbon build up on #4 piston top. #'s 2 and 3 have some light carbon. What's the best way to remove that crap without getting it inside the block?

Yep, the head is brand new with great machine work, o-ringed and larger(2.7ltr) intake valves. I'll take your advice on the cleaning of the rest. I have to pull the front crank seal as well. There's a good amount of leakage there.
Obviously I'm doing the wp/gasket/belts and rollers and any other front seals that need replacing. I need a seal driver though. What do you use to get them squarely into place?

I used Gumout carb cleaner and a toothbrush to get the carbon off of the pistons, then a shopvac to suck everything up.

I used oversize metric deep sockets as seal drivers. Worked fine.

ehall 02-27-2011 10:19 AM


Originally Posted by theedge (Post 8336863)
Its called the DME temp sensor. Used to sense coolant temp for fueling. Quite important. And also not too expensive, $15-20 I think.

Thanks. I'll pick one up. I knew it was one of two sensors that look almost identical. :cheers:

ehall 02-27-2011 10:20 AM


Originally Posted by ramius665 (Post 8337064)
I used Gumout carb cleaner and a toothbrush to get the carbon off of the pistons, then a shopvac to suck everything up.

I used oversize metric deep sockets as seal drivers. Worked fine.

cool. Thanks.

Okay, off to get this done.

Thanks to everyone! RL never fails.

JohnKoaWood 02-27-2011 10:38 AM


Originally Posted by ehall (Post 8337101)
cool. Thanks.

Okay, off to get this done.

Thanks to everyone! RL never fails.

no worries nOOb!

and good luck!

metric socket for seal driver worked like a charm here too!


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