Broken bolt in block under throttle body adapter - what now ?

Lucky me the last bolt I broke off left the remainder loose but recessed in the hole. Sprayed oil in, and used the broken off head as a "key" to unscrew the broken shaft.

Love when hat happens.


u know that might work if he uses his longest bolt as a key.
 
if the bolt is sticking out at least 1/4 inch
craftsman makes an extractor set that goes over the bolt and will turn it right out.
the set is numbered 1-10
on ebay but i was not impressed with the ratings of the sellers.
if u r interested i can set u up with a link.
 
Lots of the Chinese ones on eBay
USA
https://www.ebay.com/itm/10pcs-Damaged-Nut-Bolt-Remover-Stud-Extractor-Set-Broken-Screw-Removal-Tool-Set/143362975170?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D1%26asc%3D57928%26meid%3Dbdbc7d63c7c74fe48f0c0dec8c358465%26pid%3D100005%26rk%3D2%26rkt%3D12%26mehot%3Dco%26sd%3D323904203708%26itm%3D143362975170%26pmt%3D1%26noa%3D0%26pg%3D2047675&_trksid=p2047675.c100005.m1851

Oz
10pcs Damaged Nut Bolt Remover Stud Extractor Set Broken Screw Removal Tool Set | eBay

Damaged Nut Bolt Remover Stud Extractor Set Broken Screw Removal Tool Set
Specification

Material: Chromium Vanadium Alloy Steel
Usage: Remove damaged nut and bolt

Features
This is a set of 10 pieces sturdy tools to help remove nuts, bolts, screw heads, studs, etc.
It fits heads sized 9, 10, 11, 12, 13, 14, 15, 16, 17 and 19mm.
Spiral cut teeth provide a positive grip to remove rounded or damaged bolts.
Made of hard alloy, they are of strong strength and long durability.
These tools can be driven with a metric spanner or socket for fast work.
All these tools are packed in a case for easy storage and transportation.




And or one of these kits
USA
Craftsman Drill Extractor Set Extracting Broken Bolts and Screws w/ Plastic Case 696306821977 | eBay

Oz
https://www.ebay.com.au/itm/Craftsman-Drill-Extractor-Set-Extracting-Broken-Bolts-and-Screws-w-Plastic-Case-/183756863852?_trksid=p2349526.m4383.l4275.c10#viTabs_0
Product Description

Remove Busted Bolts and Screws with the Craftsman Drill Extractor Set Extracting Broken Bolts and Screws w/ Plastic Case

When you have a broken bolt or stud that needs to be removed, get out your variable speed reversible drill and your drill extractor. Use it on screws or bolts that have busted off on the inside of the casting or on the outside. Place the self-centering point on the extractor in the center of the bolt or screw. Drill out the stud to a half in. Insert the tip of the extractor into the drilled hole and remove whatever has broken off.

The shortened length on the Craftsman drill extractor makes it easier to control the tip. Tips of 1/4" and 1/2" and tips of 6 mm and 12 mm are included in the 4-pc. set. The extractors are sliver colored and come inside of a plastic case for easy storage. A lifetime warranty covers these extractors if anything should happen to them.
  • Use a variable speed reversible drill and your drill extractor set to remove broken-off bolts, studs or screws
  • Works whether the bolt is broken off inside of the casting or on the outside
  • Self-centering point on the extractor goes straight to the center
  • Insert extractor tip into the drilled hole and remove broken item
  • Shortened length makes it easier to control the tip
  • Both SAE and metric
  • Includes a plastic case for storage

SAE and metric|Self-centering

  • Color/Finish: Silver
  • Item Weight (lbs.): 0.2
  • Quantity in Set: 4 pc.
  • Product Type: Bolt-out sets
  • Units Type: SAE and Metric
  • Case Included: Yes
  • Stock Included: No
  • Wrench Included: No
Craftsman_Drill_Extr_1024_0_res.jpg
 
if the bolt is sticking out at least 1/4 inch
craftsman makes an extractor set that goes over the bolt and will turn it right out.
the set is numbered 1-10
on ebay but i was not impressed with the ratings of the sellers.
if u r interested i can set u up with a link.


A simple cheapo method would be to tap a tight or slightly too small hex socket over the stump and use you 3/8 or 1/4 inch drive to remove.
 
I also found this:
My bolts and gasket are on the way, so I guess I'll drop the sump when I feel like it and see what I'm in for.
Got lots of good advice to keep me on the right track!!!

Irwin seems to have nice sets. And I think I can get those at Ace Hardware one size at a time.
 
I also found this:
My bolts and gasket are on the way, so I guess I'll drop the sump when I feel like it and see what I'm in for.
Got lots of good advice to keep me on the right track!!!

Irwin seems to have nice sets. And I think I can get those at Ace Hardware one size at a time.


i don't know about that tool ?
 
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