Join Date: Jan 2006
Location: Birmingham, Alabama, USA
Been awhile since I initiated this thread. Finally, I got around to making the fix..
The details which follow may bore the experienced but I know there are others which may well benefit from my experience, ad perhaps get a laugh out of my learning curve.
I have the satisfaction of learning a couple of new skills along the way too, but my fix was not quite so easy as several I read about. I also removed only the plastic. The broken bolt was so disfigured, I decided to leave the bumper on the bike and drill from the top. Punched the end of the bolt sticking up from the top, drilled approx half way down through the threaded part of the bolt. Drove a #2 screw extractor down into the hole and proceeded to try to screw the bolt DOWN from the top.
Extractor kept coming loose. Later learned it does not work that way. The extractor is made to back the bolt out only. It is reverse threaded. So I had to back it up and out through the top. (My old eyes could not see the thread pattern).
Sounds easy enough except in my case, I had so much metal filings in the threads, I may have driven my hole too deep, that it became very hard to turn the extractor. Became concerned that I would break it off in the bolt.
Then learned that the vice grips were not the best tool to turn the extractor with. Bought a small T handled tap wrench at Lowe's. Much better now, still extremely hard to turn bolt. Oil down the hole followed by two or so turns over a period of hours as I let the oil penetrate. Finally got it out only to find the new bolt would not tread into the hole. I did not bugger the threads with my drill, I'm sure of that. I think the difficult turning was caused by two factors. One the metal filings and two the extractor bites into the hole in the bolt prob. causing the bolt to bulge vry slightly as the extractor is turned.
Back to Lowe's for a tap. Used a crescent wrench to turn the well oiled tap and voila!! My bolt now fits perfectly!!
I do have one question as I have not yet re-assembled the J Peg. A spring fell out from under the bumper as I was driving the extractor into the top of the bolt. It appears that this spring fits a hole in the underside of the peg. Do I simply re-insert the spring upon assembly?? Or what??
2003 R1150RT, Black Beauty--this is one sexy bike!
1999 R1100GSA, Does everything well, what else can one say?
1992 K75SA, If this engine had been 4-valve instead of 2, it would be the smoothest BMW ever built!
1978 R100S, my first and favorite BMW.
1976 R75/6, A 30 year old gentlemen I still love to take out for a Sunday ride.