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View Full Version : Pre-06 2pot Caliper Grinding


ckcadavona
12-05-2010, 10:03 PM
This is not a finished DIY. I have yet to find additional information about grinding these calipers to fit STOCK 15x6 5 spoke and 6 spoke Legacy, Outback, etc. rims. I chose to do this because these rims have proven to be durable and economical.

I would appreciate additional information and answers to some questions. I will update the thread accordingly.

Did I take too much off the caliper?

Should I paint the caliper to prevent corrosion?

Is 2mm enough clearance?


before: I went into it thinking I would only grind past the outer indentation and the rest of the markings.
http://i142.photobucket.com/albums/r96/ckcadavona/1204101829.jpg

After: I found that after getting it as even as possible I had to go slightly further to get at least 2mm clearance. I only did one caliper to test it out for a while. I'm still planning on using high temp paint to prevent corrosion as long as these prove to be reliable for a while or if I get some replies to reassure that I didn't take too much off.
http://i142.photobucket.com/albums/r96/ckcadavona/1204102325.jpg
http://i142.photobucket.com/albums/r96/ckcadavona/1204102153.jpg

The rim is torqued down and spins freely.
http://i142.photobucket.com/albums/r96/ckcadavona/1204102315.jpg

This is how I measured approximately 2mm. The index paper was passed in between the caliper and rim with little effort. I would go as far as saying it's more like 2-3mm because its hard to get the caliper completely even with a angle grinder and belt sander.
http://i142.photobucket.com/albums/r96/ckcadavona/1204102311.jpg

Slid the index paper up, down, and moved the rim with little effort.
http://i142.photobucket.com/albums/r96/ckcadavona/1204102312.jpg

KevinWelker
12-05-2010, 10:35 PM
Did I take too much off the caliper?

Should I paint the caliper to prevent corrosion?

Is 2mm enough clearance?



I don't think so.

Don't bother painting it, the original was not painted, the Al will develop it's own oxide layer.

2mm looks pretty good to me. Nice workmanship.

williaty
12-05-2010, 11:22 PM
Those old calipers are aluminum?

The ones on my 05 are steel.

Also, definitely a mod with a high pucker factor!

KevinWelker
12-06-2010, 11:04 AM
Whatever they are made of, they seem to come uncoated, I don't see a compelling reason to coat them.

ckcadavona
12-06-2010, 05:40 PM
Those old calipers are aluminum?

The ones on my 05 are steel.

Also, definitely a mod with a high pucker factor!

Can you elaborate on the pucker factor?:shock: