Broken distributor bolt

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Nov 17, 2004 | 08:06 AM

snipa

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Joined: Sep 2004

Posts: 279

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From: Appleton, Wisconsin

Broken distributor bolt

Timing was off, I went to loosen the hold down bolt for the distributor, and the bolt snapped immediately-with little effort applied.

Worse yet, I drilled into the bolt, put in a bolt extractor (made in China I guess) broke also

Now I want to retap instead

My fear is the tapping the water jacket-How deep is the flathead area where the bolt goes in to hold down the distributor?

Nov 17, 2004 | 12:49 PM

mtflat

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Joined: Oct 1999

Posts: 6,777

Likes: 553

From: Kalispell, MT

If you have the broken extractor out (never use those by the way) drill the remaining broken bolt out, oversize if necessary and use a bottoming tap instead of a starting/tapered tap. No need to go deeper in the original hole. If you stop just short of drilling out the original threads you may be able to use the original size tap and cut out the threads of the bolt with the tap.

Bottoming tap is straight sided with very little taper (only about 1 or 2 threads)

Nov 17, 2004 | 01:05 PM