when torking bolts..........

[jkl72-40]

10mm torked to 29lbs I was at 10lbs and the center bolt snapped on the water pump I cant quite get vice grips on it to get it out. If I screw this up I think I will need a new t chain cover
any suggestions on how to get the broken bolt out??

 

[2ndGenToyotaFan]

10mm head? 29 ft/lbs? That seems like a lot...pull the water pump off to get to the bolt??? Also it's torque

 

[jkl72-40]

I like the way Tork looks
I did take the WP off and still cant get to it

 

[jkl72-40]

I was told this
LC Engineering:

 

[2ndGenToyotaFan]

Hmmm I won't argue with LC... Cut a slot in the end of the bolt with a dremel and use a torch to heat the timing cover up around the bolt, then turn it out with a screwdriver.

 

[Japan4X4]

So 10mm is the size of the bolt or the size of the head?

A 10mm bolt will have a 14mm or a 17mm hex head on it depending on application.

A 10mm hex head is normally found on a 6mm bolt.

DIN 931, 933-8.8 Hex Head Cap Screw | Fuller Metric Parts Ltd.

 

[WarDamnEagle]

The normal way to remove a broken bolt is with a screw extractor. Most kits come with guides, drill bits, and extractors. Place guide over bolt, drill hole, screw extractor in (left hand threads). At some point the extractor will quit going in and the bolt will start coming out (at least in theory).

 

[PGH854runner]

usually if i bolt breaks on the way in(your case) or from a side load(sheared off like the steering arm to knuckle studs on a solid axle,.....been there!)a bolt extractor is the ticket......however when your trying to remove a bolt that has been in years and it doesnt move then the head snaps off, in my experience all a bolt extractor does is also break in the hole..........you should be alright....worst case scenario new timing cover but i doubt you'll have to

 

[Hilux]

MUST USE 1/4" DRIVE torque wrench!!!


Ask me how I know.

 

[KLF]

MUST USE 1/4" DRIVE torque wrench!!!

No, you just need a torque wrench that is PROPERLY CALIBRATED. The size of the drive doesn't matter, it's the range that it's meant to work within.

A 10mm fastener refers to the diameter of the threaded shaft of the bolt, not the head on the bolt. Sounds like you tried to put 29 ft-lbs on an M8 bolt, which is way too much.

 

[jkl72-40]

yup

True klf I made a rookie goofup

now ill get that bolt

 

[GRM]

Hmmm I won't argue with LC... Cut a slot in the end of the bolt with a dremel and use a torch to heat the timing cover up around the bolt, then turn it out with a screwdriver.

x2. That also works really well for steering arm studs.

The other part of the trick, is to use vice grips on the screw driver. it works even better if the screwdriver is meant to go into an air hammer

 

[jkl72-40]

will try it
thanks

 

[WristPin]

the best way is to use a twist out. Not an easy out.
this is the tool

KD Tools

many brands make this tool.
even crapsman.

this is the tool you must aquire

 

[jkl72-40]

cool what will they think of next?

 

[WristPin]

an engine that runs on water

 

[jkl72-40]

that would be nice but will cost you an arm and a leg...................go back to mules........more eco friendly

ps got the bolt out cut a slit and screwdrivered it out... one for the good guys........