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onZedge's Avatar
 
Join Date: Aug 2005
Location: Hoover, Alabama
Posts: 1,494
How do you chase the threads in the block for the head studs?

I have the correct tap. The problem is, it is too short. I must be missing something because I am not a Machinist. Oh, and the tap that Raceware sells is the same length as the one I have. Is there (yet, another) a tool I get to buy to hold the tap?

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Edek
'87 924S
'91 535i
Old 05-20-2008, 01:43 PM
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Join Date: Mar 2008
Posts: 82
well you could do a couple of things. Find a small 1/4 drive socket that fits the square end of the tap. Get a bottoming tap not a taper tap unless your already using a bottoming tap. Or buy a thread chaser kit or just buy the size you need. It looks sort of like a tap but has grooves up the side to clean, thread chasers won't accidently cut the treads if your not at the right angle like a tap will.

If your really stuck or you screw up the threads completly your going to have to drill it out and Heli Coil it
Old 05-20-2008, 03:08 PM
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Join Date: Aug 2005
Location: Hoover, Alabama
Posts: 1,494
I'll just add it to the list...

12-Point 5/16" X 1/4" drive socket and duck tape. $2.59

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Edek
'87 924S
'91 535i
Old 05-21-2008, 10:03 AM
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