 drilling 4 to 5 lug rotors...how accurate? |
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| computers4kids |
 Oct 3 2008, 09:01 AM
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Love these little cars!  Group: Members Posts: 2,443 Joined: 11-June 05 From: Port Townsend, WA Member No.: 4,253 Region Association: None  |
I had a machine shop redrill my new zimmerman rear 4lug rotors to 5lug. The holes are slightly off and the rotors will not sit flush--they hang-up on the studs. I opened the holes up a bit and it is much better. Unfortunately, they need even more opening which I'm concerned because to do this will make some of the holes loose around the studs. Is this safe?
Choices, do I open the holes up so the rotor will slip around the studs even though some of the studs will be sloppy knowing the wheel studs once torqued will hold things correctly? or Do I just go out and buy a set of 914-6 rear rotors and cut my losses? If so does someone have a source near Visalia, CA that I can get fast...I want to put my 5 lug conversion together this weekend? Pelican won't ship for 5 days. |
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| davep |
Oct 3 2008, 11:44 AM
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914 Historian Group: Benefactors Posts: 5,160 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
You may be able to open up the interfering holes just enough. Make sure you use the screws to fasten the rotor to the hub; critical to try and center the rotor correctly. Bolt on the wheel as usual. Positioning of the rotor by use of the screws will go a long way in ensuring the rotor is centered, and the wheel bolts clamp it in place.
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| MartyYeoman |
Oct 3 2008, 02:13 PM
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Senior Member Group: Members Posts: 1,520 Joined: 19-June 03 From: San Ramon, CA Member No.: 839 Region Association: Northern California 
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QUOTE(davep @ Oct 3 2008, 10:44 AM)  Make sure you use the screws to fasten the rotor to the hub, critical to try and center the rotor correctly. Positioning of the rotor by use of the screws will go a long way in ensuring the rotor is centered. (IMG:style_emoticons/default/agree.gif) |
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Posts in this topic
computers4kids drilling 4 to 5 lug rotors...how accurate? Oct 3 2008, 09:01 AM
Cap'n Krusty Positioning of the holes CAN be as accurate as you... Oct 3 2008, 09:24 AM dbgriffith75
:agree: Nothing more to it. Oct 3 2008, 11:34 AM Spoke I thought the rotor was centered by the clearance ... Oct 3 2008, 02:35 PM
davep
I thought the rotor was centered by the clearance... Oct 3 2008, 06:38 PM Marty Yeoman There are no centering features on the rear hubs, ... Oct 3 2008, 02:58 PM rick 918-S Jeeeze! what kind of machine shop were they? I... Oct 3 2008, 05:58 PM computers4kids Thanks for all the replies. I was going to go ahe... Oct 3 2008, 08:23 PM Eric_Shea I would almost bet it's not the studs/holes.
... Oct 4 2008, 01:56 AM melnyk
I would almost bet it's not the studs/holes.
... Oct 4 2008, 08:14 AM |
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