I can't explain it the torque wrench was set to 10 ft/lbs like it says in my manual and the broke this bolt. (There was some debate it might have been bumped up to 12 ft/lbs accidently cause my brother broke the bolt)

Please see photos. Second photo is just so you know what's installed.

The bottom and middle bolts torqued OK and then a POP sound and that was it. Must have been a fatigued bolt, (of fatigued operator) I guess I should have replace them. Too late now.

My first question is has anyone run without one of the small bolts before ?

I plan on putting performance heads on in the near future 6 to 8 months (no more that a year) with MLS gaskets.

Secondly
I'm very eager to get this back together should I deal with it now ? or later when I put the new heads on ?

TIA Jaxx

Now, not later.

I forgot my service manuals at the shop and was so upset I didn't bring home the broken bolt to measure it.

Can someone please post the thread size ? Out of memory I think it was an M5 or M6 but looking at a setup calipers makes me think it's an M4.

I need to start shopping round for a small screw extrator.
TIA Jaxx

did it have oil on the threads?

If the bolt was overtightened and pulled in two you should be able to twiddle it out with a sharp awl or scribe. If you can budge it at all with a sharp instrument you are home free. You can also try nudgeing it a little bit with a very small and sharp center punch. Tap the punch with a very small hammer along the edge of the bolt in such a way as to turn the bloody stub out. Go easy and don't beat up the end of the bolt. Drilling and extractors is the absolute last resort.

eldorado1

No oil everything was very clean, Just finished timserting whole block, machined heads to clean up the leak area.
Previous thread about if you interested: http://www.cadillacforums.com/forums...ss-up-ecu.html
I sprayed all the wholes with barke cleaner and blasted them out with 140 psi of air.

I was just getting ready to put the intake & water pump back on when this happened.

Off to the Stealership for some bolts ( I love that saying, first saw it posted by PJs)