What is the best way to polish the spider
#16
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Thanks all for that had no clue,strange to as i worked on heat treat machinery and controls most of my life. that includes vac dep machines and many others. really notice things around me. oh just for info saw a brown 928 near our summer placce in maine,most stop and find out more.Ray![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
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It's relatively cheap, especially labor wise as you can polish as many parts at once that wil fit in the size tank you have access to.
Even more important, the EP fluids will polish in places NO tool can ever reach and to a microscopic level that is not possible "manually"..hence the long time use with medical stuff. It is easier to keep a microscopicly smooth material sterile than a more course material.
Back to intakes, for everyone who is going to put the time into manually polishing your intake..do yourself a favor aread up about outgassing aluminum, especially cast aluminum...IF you want to to stay polished for more than a few weeks. 16V intakes are permiated with oils and if you do not properly outgass the parts..you will be wasting your time...trust me!
IF you properly outgas a 928 Intake the polishing will last for years or even decades.
My Euro S Intake that was professionally polished over 10 years ago and has never been repolished (Washed and wiped off only for the last 10+ years)..
Then..
![](http://www.928gt.com/images/85%20EuroS%20Engine.jpg)
Now...
![](https://lh4.googleusercontent.com/-V43HTIzV0Tk/TiGKulV0-pI/AAAAAAAABY8/GJaxDzQZ_GM/s800/2011-06-15_18-31-22_878.jpg)
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David Roberts
2010 Jaguar XKR Coupe - 510HP Stock - Liquid Silver Metallic
928 Owners Club Co-Founder
Rennlist 928 Forum Main Sponsor
www.928gt.com
928 Specialists on Facebook - 928Specialists
Sharks in the Mountains on Facebook - 928SITM
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#17
Been selling Twinkies on Ebay,
have some extra cash right now.
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have some extra cash right now.
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Here's mine. Rapidly wire-brushed in place, then clear brushed on the obvious, easy to reach areas. 1-1/2 hour job, and I love it. Has a nice machinery-type patina to it.
#19
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Interesting on the outgassing...I found this:
http://www.powder-coater.com/outgassing.htm
and this
http://forum.eastwood.com/showthread...sing-questions
probably why my miata's intake I polished went dull after a few months.
http://www.powder-coater.com/outgassing.htm
and this
http://forum.eastwood.com/showthread...sing-questions
probably why my miata's intake I polished went dull after a few months.
#21
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Interesting on the outgassing...I found this:
http://www.powder-coater.com/outgassing.htm
and this
http://forum.eastwood.com/showthread...sing-questions
probably why my miata's intake I polished went dull after a few months.
http://www.powder-coater.com/outgassing.htm
and this
http://forum.eastwood.com/showthread...sing-questions
probably why my miata's intake I polished went dull after a few months.
#22
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The S4 side covers will easily polish up like a freaking mirror as they are close to pure AL...the intake itself will also, BUT due to the higher mag content, it will dull in hours..unless you follow special procedures. Check with an Aircraft Polishing specialist...they know how to polish Mag stuff better than most.
Have not EP'd an S4 Intake yet, may have to try it on one I cut up into pieces.
EDIT: BTW, I have a Pic of a Polished S4 Intake..if I can find it I will post it for you.
Have not EP'd an S4 Intake yet, may have to try it on one I cut up into pieces.
EDIT: BTW, I have a Pic of a Polished S4 Intake..if I can find it I will post it for you.
Last edited by DR; 07-17-2011 at 04:02 PM.