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Author Topic:   I will save you the learning curve for drilling rotors to 5 on 5!!!
Dirt Maniac

Total posts: 117
posted February 14, 2002 08:58 PM
After two messed up rotors, two nights of tossing till twelve o'clock, Here's the scoop.
drill press, drill bits, die grinder, universal 1/4" - 1" wheel spacer, 5/8" self aligning punch (solid steel rod, no tapering with a tit on one end), hammer.

Leave studs in rotor, and place the spacer on the rotor. Check the 5on5 pattern looking for any casting lines that will interfere with the punch marks and/or make the drill bit walk. Remove the spacer and die grind the small area smooth. Now reinstall the spacer and run a couple of lugnuts down snug- use the punch to mark etc. Drill small hole then work your way up to the appropriate bit size. You may have to die grind the back side to get the stud to seat flat.
Making a pattern and/or thinking of the spacer is the hardest part. I got the punchs at the local tool store- Harbor Frieght. They did not have a 5/8" punch, the biggest they had was 17/32" (a part of a set of 20+/ $8.99) but a lap or two of electrical tape does wonders. So don't pay $60 or $70.

Hope it helps, Hughes

Dirt Freak

Total posts: 390
posted February 15, 2002 03:05 AM
I can save you all that time and trouble...if you can afford it......Speedway motors sells brand new (NOT RE-DRILLED) rotors that are 5X5 for the metric....for $60 each.....if I remember correctly.

that seems a little pricey but most people would rather spend the money istead of doing the work these days.

Dirt Maniac

Total posts: 117
posted February 15, 2002 06:53 AM
well i got a friend who works in a salvage yard. Smile

Dirt Forum Racer

Total posts: 79
posted February 15, 2002 05:49 PM
dont you love figuring out how to do something better after youve f'd it up..happens to me all the time..

Dirt Forum Racer

Total posts: 98
posted February 15, 2002 10:51 PM

Dirt Roller

Total posts: 14
posted February 17, 2002 10:34 PM
The easiest way is with a CNC mill., Any local machine shop would be able to do it for a resaonable price.

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