broke thermostat bolt

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Aug 18, 2004 | 08:10 PM

rp_guy

Thread Starter

Junior Member

Joined: Sep 2003

Posts: 66

Likes: 0

From: Edmonton, AB

Car: '86 Z28

Engine: 305 LG4

Transmission: 700-R4

broke thermostat bolt

it was on very tight, and i snapped off the top of the bolt, no threads open?

ideas?

Aug 18, 2004 | 09:22 PM

JeffW

Supreme Member

Joined: Jun 2003

Posts: 1,985

Likes: 1

From: Massachusetts

Car: candy blue 85 z28

Engine: 305 tpi LB9

Transmission: 700r4 crazy beefed up one

Axle/Gears: ones with teeth

jet a set of easy outs. drill a hole in the bolt and use the easy out to remove it.

Aug 20, 2004 | 07:42 AM

Vader

Moderator

Joined: Jan 2000

Posts: 19,653

Likes: 309

A 3/16" left hand drill bit would be worth a try. Just be certain you spot punch the very center and drill straight down the center. If that doesn't work, step up to 1/4". Then 5/16", Then retap the hole.

Don't forget to use anti seize compound on the bolts when you reassemble so you never have this problem again.