![]() |
Media tumbling a mag case
I'm getting ready to send Ollie's a mag 7R case. Is it worth having it tumbled? The alum case pictures show an almost polished finish which looks great. What can I expect tumbling a mag case? Will it turn to a light gray from the almost aged black look?
Thanks guys Gary |
My understanding is that this is not only not worth it, it is a bad idea for a mag case. The surface oxidation of the mag cases is, I think, even more problematic than it is for aluminum (where it forms a protective coating, doesn't it?). After a while mag cases, or some parts of them, can look as if they had rusted and lost material. Polishing this is just going to accelerate this, I think. And if it changes color with polishing the surface, I believe it will quite quickly revert to what it was.
|
Greetings Gary,
I am in the pocess of restoring a 914-6 (#2463, a '70). I sent the little 2.0L magnesium case out to George and Ike at Ollie's to have it align bored and new oil pressure relief tap done. I could not decide If I needed the case tumbled in the media to clean it simply because the old mag cases just don't clean up like an aluminum case. I went ahead and had them tumble it ($120) as this car is going to be a "show" car. I got what I expected, nice and clean smooth surfaces, but not shiny and bright. The magnesium ages and turns darker as heat ages the case. The tumble only makes the finish "clean". Tom/AV8TOR Colorado Springs |
Ollie's tumbled my mag case -- no complaints.
|
All times are GMT -8. The time now is 12:14 AM. |
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website