thunderace
|
| posted on 21/1/07 at 05:01 PM |
|
|
high tensile steel
i have an outboard drive spline stuck in my crank so i cut it off at the crank to drill and tap it (i was going to stick a socket over it and stick a
bolt through it to use it as a pully)but have real peoblems drilling it it has distroyed a number of drill bits ( ZIRCONIUM NITRADE COATED DRILL BIT )
i have gas bottles ,would heating it and leting it cool over night make the steel a lot softer or has anyone any advice on how to remove it i have a
6mm drill bit stuck in it now .
 
Rescued attachment DSCF1084.JPG
|
|
|
|
|
rusty nuts
|
| posted on 21/1/07 at 05:03 PM |
|
|
Spark erosion. If your lucky possibly a masonry bit might?? work
|
|
|
the_fbi
|
| posted on 21/1/07 at 05:05 PM |
|
|
Pictures not too clear, is there enough room to get a pair of stilsons on there?
Or a locking wheelnut remover socket?
Ignore that, looking closer, its a splined (yes you did say that too!) issue youve got.
Weld a makeshift slidehammer on there?
[Edited on 21/1/07 by the_fbi]
|
|
|
flak monkey
|
| posted on 21/1/07 at 05:09 PM |
|
|
Slide hammer it out. Easy enough to make with a heavy lump of steel and a bit of bar.
Sera
http://www.motosera.com
|
|
|
12a RX-7
|
| posted on 21/1/07 at 05:10 PM |
|
|
How about MIG welding a stud into the hole you have now, not only will it give you somthing to pull on it will get the spline nice and hot if you hit
it with plenty of heat.
|
|
|
Peteff
|
| posted on 21/1/07 at 05:35 PM |
|
|
Yes, weld a stud or threaded bar into it then use your original idea of a puller arrangement using a nut on the other end.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
|
|
|
ed_crouch
|
| posted on 21/1/07 at 07:53 PM |
|
|
Yep. Slidehammer it out.
Might want to warm the crank up with a hot air gun as this will tend to release the trapped part. dont use Oxyacetylene or the like, as it might
knacker the journal.
Ed.
I-iii-iii-iii-ts ME!
Hurrah.
www.wings-and-wheels.net
|
|
|
.jpg)
