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  View original topic: polishing tips? pedrini's
derRHDmeister Tue Jan 25, 2005 11:14 am

just got dremel for x-mas- was wondering if there's any tips on which grit and type of attachments to use and steps to polish the pedrini 914 rims. dont think they are magnesium but aluminum? I'm itchin and ready to go!

I just want to do the lips and spokes (raised part) the rest should be black or how did they really come out originally? photos or examples or links wud be helpful! thanks in advance

RareAir Sun Jan 30, 2005 10:21 pm

Don't bother with the Dremel. Use wet/dry sandpaper starting with 1000, then 1500 & finish it off with 2000 grit. Then hand rub some Mothers Aluminum polish. The wheels will shine like new. All this is assuming your wheels have had the clear anodizing removed already of course.

Glenn Mon Jan 31, 2005 4:55 am

I've been running Pedrini's for 25 years. They are aluminum and will darken over time. Once polished, they will require alot of work to keep them looking good.

You'll need to glass bead the wheels to remove all the dirt.


derRHDmeister Mon Jan 31, 2005 7:32 pm

all right, in the drawer goes the dremel.

ill find out what it takes to glass bead the wheels, i dont know if it has been treated in any way. the 2 wheels look darker than other 2 wheels so im assuming ONLY two has been treated? they are stamped '74 so that makes any difference?

Also- about how it should look- did it come from the factory painted or clear coated? ive seen some with black/polished lips. I dont want to be doing something non-OEM (unless its a resto custom!) :roll:

thanks for the tip, appreciate it!
P.S. glenn, thanks for the 019 screamer! forgot to thank you for the quality work and shipping it quickly!! :o

Darrell

Glenn Wed Feb 02, 2005 6:25 am

The came raw... bare metal.

The problem is they are somewhat pourous and will darken over time. You can't clear coat them since you have to apply a primer for the paint to stick. I decided to paint mine factory silver. They still look great after a number of years and the color makes them look "stock".

Don't forget the correct center caps and correct lug bolts with the "ball" seat and 19mm head.

derRHDmeister Wed Feb 02, 2005 8:20 am

I get it now, so its compostion probably same as magnesium? I checked and it wasnt '74 but '72 wheels. any difference in years or they are all the same?

came with lugnuts but missing 4 (1 per wheel) so im assuming its a good idea to put on lock nuts... but can i find the right one? :roll:

can I order one from porsche- the center caps or are they out of production? lugnuts too. thanks!

Glenn Wed Feb 02, 2005 8:54 am

The made 2 versions of the Pedrinis.

914 361 013 00 Fits only cars with drum brakes
914 361 013 01 Fits both drum and disc brakes.

The later wheels are machined to accept rotors with the "centering ring". The early ones will not fit with the centering ring. Only German rotors have that ring. Brazilian rotors don't have it and might fit.

914 361 303 03 Center caps are available from Porsche for $40 each. I think ISP West (aka Pimpride) sells a aftermarket version for $100 a set of 4. They're not exact, but they are close.

914 361 315 01 are the lub bolts. They're 38mm long and have a ball seat. They are available from Porsche for about $20 each. The only wheel locks that i've found that fit are MacGuard and the application is Porsche 924 Turbo with BBS wheels.... a rather obscure application.

You're better off getting those "Euro" locks that fit over the head of the lug bolt. But personally i wouldn't worry about them being stolen since they only fit 914s and ACVWs.

Here's how you tell.
Early front - notice the "knob" on the end of the spoke

Early back

Late front - doesn't have the 'knob" on the end of the spoke

Late back



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