hardbar install: cross threaded bolts
01-21-2007, 12:33 PM
#1
Le Mans Master
Thread Starter
hardbar install: cross threaded bolts
I'm replacing the B-K harness bar with a hardbar. When the B-K Bar was installed the passenger side b-piller got cross threaded and now the new bolts won't go in all the way. Do I (a) force the bolt in and don't worry about it or (b) repair the the threads (how do I do that?). From looking at it, it appears that only the 1st 3 threads are messed up.
01-21-2007, 12:38 PM
#2
Team Owner
try to clean them up with a tap first if that don't work then get a heli-coil kit for that size. Just work the tap with some ligh oil and back out after lightly turning it to remove any filings from the tap cleaning the treads, Good tap and handle is 15 bucks or less buy the handle to have concrol.
http://oemfasteningsystems.thomasnet...hread-inserts?
http://contractorstools.com/helicoil1.html
most good auto parts places or hardware stores should have them.
Take the bolt to match up the threads so you get the right one. Gary or someone here will know what size it is also.
http://oemfasteningsystems.thomasnet...hread-inserts?
http://contractorstools.com/helicoil1.html
most good auto parts places or hardware stores should have them.
Take the bolt to match up the threads so you get the right one. Gary or someone here will know what size it is also.
Last edited by John Shiels; 01-21-2007 at 12:49 PM.
01-21-2007, 12:51 PM
#3
Le Mans Master
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Sorry to hear that, just clean it up with an M12x1.75 tap with some light oil (WD-40 works). The bolt is long for maximum thread engagement so you will still have plenty.
01-28-2007, 02:52 PM
#6
Le Mans Master
Thread Starter
Just to follow up on this, the Tap worked like a charm and the Hardbar is in.
The only problem was I had to buy a full set of taps and dies to get the right size.
The only problem was I had to buy a full set of taps and dies to get the right size.
01-30-2007, 08:18 AM
#8
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When I installed my Hardbar, I looked at the slightly off-horizontal angle of the bolt, the length of the Hardbar and the fact that I had no help putting it in and decided to run a tap down the hole before installing just to clean the threads up and make sure I was going in nice and straight. That way I was able to thread the fastener inmostly bu hand, once I got the angle right, and ease my mind of any potential cross threading hazard. I've screwed up too many fasteners in the past. I'm a little more paranoid these days.
J.G. Pasterjak
Grassroots Motorsports magazine
Classic Motorsports magazine
J.G. Pasterjak
Grassroots Motorsports magazine
Classic Motorsports magazine