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Old 10-19-2012, 07:51 AM
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hornhospital hornhospital is offline
D'oh, You Kids!
Location: In the Grumpy Chair
Join Date: Jan 2008
Posts: 21,873
Mein Auto: E24x2,E36x1,E30x1, F150
I have the "old machinist's" version of the thread restoration kit: a set of letter and number drills, a very good center punch, a set of SAE and Metric taps, and lots of prayer. Yes, I know a standard cutting tap isn't the best for restoring threads, but if done right, it works fine. The main thing is to get all the pieces of the old bolt and all the corrosion out. I was a journeyman machinist for 27 years in a high-precision shop that handle nothing but stainless steels and exotic alloys. Drilling out a plain steel bolt is cake compared to my old job. The hardest part on the 6er was getting access to the thing so I had a straight shot at drilling and tapping it! You don't realize just how far back in the front end the block sits until you have to reach it through the grill. I thought I was going to have to remove the entire nose!

I just did some research on the Snap-On Rethread kit.... the identical kit made by the same supplier at half the price ($63-ish vs. $119 as the last listed price for the SO) can be had from Sears. BTW, neither Sears nor Snap-On warranties their tap and die and rethread kits any longer. The have a disclaimer stating they are "wear items". SOME Snap-On dealers will still honor their warranty.
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot
Ken Kanne, Silverhill, AL, E36 Forum & New Member Intro Forum Mod-
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1993 325is "Elvira"; 1985 635CSi "Katja"; 1984 633CSi "Sylvia"; 1987 325is "Odette"

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