collar bolt on axle possibly stripped.
#11
10-03-2007, 05:58 PM
RE: collar bolt on axle possibly stripped.
ORIGINAL: hiwords
o ya. if u do indeed strip it. see if u can sumhow weld the allen socket to it and then u'll get it out for sure
o ya. if u do indeed strip it. see if u can sumhow weld the allen socket to it and then u'll get it out for sure
#13
10-03-2007, 08:57 PM
RE: collar bolt on axle possibly stripped.
I am pretty sure heat is the only way to get that out. I'm about to do my front two wheel bearing soon, but I did a rear one about a month ago. The heads of my bolts are so rusted that once I cleaned them out the allensocket was sloppy, eventually rounding it out. I took the next couple sizes up allen socket and ground it off until it just fit inside the bolt. Then I heated the bolt (and only the bolt) with a torch until it was red hot. I was able to put the ground down allen socket in the head of the bolt and took it out by hand. There is lock tight on the last 1/2" of the bolt (and the bolt is 3" long) so you really got to heat it up good. You're not going to warp the hub and I really doubt it hurts the bearing much, but in my opinion if you are going to have it this far apart and the car has a lot of miles on it I'd just do the bearing while you're there. It's save you the agervation of having them go bad a month later and have to take it all apart and have it aligned again. Two bearing will only cost ya $100.
#14
10-03-2007, 09:03 PM
RE: collar bolt on axle possibly stripped.
ORIGINAL: 99A4NOW
I am pretty sure heat is the only way to get that out. I'm about to do my front two wheel bearing soon, but I did a rear one about a month ago. The heads of my bolts are so rusted that once I cleaned them out the allensocket was sloppy, eventually rounding it out. I took the next couple sizes up allen socket and ground it off until it just fit inside the bolt. Then I heated the bolt (and only the bolt) with a torch until it was red hot. I was able to put the ground down allen socket in the head of the bolt and took it out by hand. There is lock tight on the last 1/2" of the bolt (and the bolt is 3" long) so you really got to heat it up good. You're not going to warp the hub and I really doubt it hurts the bearing much, but in my opinion if you are going to have it this far apart and the car has a lot of miles on it I'd just do the bearing while you're there. It's save you the agervation of having them go bad a month later and have to take it all apart and have it aligned again. Two bearing will only cost ya $100.
I am pretty sure heat is the only way to get that out. I'm about to do my front two wheel bearing soon, but I did a rear one about a month ago. The heads of my bolts are so rusted that once I cleaned them out the allensocket was sloppy, eventually rounding it out. I took the next couple sizes up allen socket and ground it off until it just fit inside the bolt. Then I heated the bolt (and only the bolt) with a torch until it was red hot. I was able to put the ground down allen socket in the head of the bolt and took it out by hand. There is lock tight on the last 1/2" of the bolt (and the bolt is 3" long) so you really got to heat it up good. You're not going to warp the hub and I really doubt it hurts the bearing much, but in my opinion if you are going to have it this far apart and the car has a lot of miles on it I'd just do the bearing while you're there. It's save you the agervation of having them go bad a month later and have to take it all apart and have it aligned again. Two bearing will only cost ya $100.
#15
10-03-2007, 11:25 PM
RE: collar bolt on axle possibly stripped.
i've read two different writeups. one says its a 14 and one says 17. the 14 seems like its pretty close, it just rotated out. which one is it? i drive a 99.5 A4 Avant (quattro). if i get new bolts, im thinking about taking it to the dealership and seeing if they can just break them loose for me to put on the new ones.
#16
10-03-2007, 11:30 PM
RE: collar bolt on axle possibly stripped.
if the dealership is nice they will but most of them aren't nice lol. i forgot wut i used when i did mine. i think it might have been the 17. well get a 17 and try it. or if u can find a 17mm bolt, put it in there and see if it fits. i think the lugs are 17. it should be that hard to remove though. spray some penetrant on it. also break the bolt tight and then try to break it loose
#17
10-03-2007, 11:30 PM
RE: collar bolt on axle possibly stripped.
The allan ones are all 17mm, there are however external hex bolts on the older models that are 14mm. Is that what you have?
#19
10-03-2007, 11:33 PM
RE: collar bolt on axle possibly stripped.
Oh good, those should be easy to remove. Find someone with an air hammer and dig a slot into the bolt with the chissel and turn that bad boy out.