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Polishing intake and cam tower

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Old 11-09-2002, 01:30 AM
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CPTdooberhead
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Post Polishing intake and cam tower

I currently have my cam tower and intake off in teh process of replacing my headgasket, and I wanted to polish the two. Can anyone give me some insight how to do so? Turbotim? I have been using hendheld sandpaper to rub them down, and its workout out pretty good thus far, but not getting the results I want before I start to use a polisher. Do I need a sander? Any insight/tips would help, thanks
Old 11-09-2002, 02:25 AM
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afx
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I have my engine apart and have been cleaning some stuff up. I have not done too much yet on the cam housing. I used a wire brush, and a wire wheel on a drill for my intake manifold. I used a dremel also, and that works pretty well also. I tried using sandpaper, but that took too long. I would start with a wire brush, then use the sandpaper to clean it up.
Old 11-09-2002, 03:29 AM
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led
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Unless something happens that forces me to rip stuff apart I don't se myself doing any of this in the near future. However, if and when I do it, I want to ceramic coat the valve cover and paint the "PORSCHE" letters red. The intake and exhaust manifolds will probably get coated as well.
Old 11-09-2002, 03:49 AM
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Danno
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Simple three-step procedure. Tape off the mating surfaces to protect them. Get a buffing wheel for your rotary sander, or a drill-attachment:

1. start with rubbing compound and lots of water and go over the entire surface really well. You many need to continue with a rag and do by hand to reach the crevices between the lettering.

2. rinse off all traces of rubbing compound and use a new polishing pad with polishing compound.

3. rinse off and dry the part really well. Then finish with a chemical polishing compound like Blue Magic or Mothers. To help to pick the right compound, this stuff usually has 'ammonia' in the ingredients
Old 11-09-2002, 04:20 AM
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*Michael.*
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Does anyone have some pictures of a polished intake manifold or cam tower that they did themselves? If so post the pics and what procedure you used.

I am also interested in this, I have a spare intake manifold that has been sitting in my garage for a while now.
Old 11-09-2002, 09:12 AM
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TurboTim
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To remove heavy castings.... you can use sandpaper.Strat with 80 grit and use 180 after that.

To remove light castings and heavy scratches you should use a 320 grit greaseless abrasive(red Lee compound) on a tight sewn buff.

To take out the light scratches from this process you can use black emery compound on a tight sewn buff.

To start the polishing process..... use tripoli on a tight or loose sewn buff.

To finish it off you can use white compound on a loose sewn buff.

To clean all the fingerprints, smudges, grease, etc..... off sprinkle some cornstarch on your parts and wipe off with some soft rags.
Old 11-09-2002, 10:38 AM
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*Michael.*
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I want my engine to look like this.....



Tim,

How much would you guys charge to polish a N/A intake manifold?
Old 11-09-2002, 10:42 AM
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Douglas_T
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Yes, not only would I like my engine to LOOK like that...But perform as well! Ha ha
Old 11-09-2002, 12:35 PM
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Mike B
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Or you could go red to match your calipers...

<a href="http://boards.rennlist.com/upload/redcamcover2.JPG" target="_blank">http://boards.rennlist.com/upload/redcamcover2.JPG</a>

and the matching intake...

<a href="http://boards.rennlist.com/upload/red951intake2.JPG" target="_blank">http://boards.rennlist.com/upload/red951intake2.JPG</a>

The pics seemed kinda big so I didn't put them in the post...
Old 11-09-2002, 02:57 PM
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Wouldnt mind anodizing.... but I prefer polishing.

Thanks for the responses everyone
Old 11-10-2002, 01:11 AM
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Michael,


It will be about $350.
Old 11-10-2002, 03:51 AM
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*Michael.*
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I went ahead last night and tried polishing a small area of my intake. It worked pretty well. I was getting tired so I used the wire wheel and polishing compound before I had it completely smooth. I just used 100 and 150 grit paper on it. I am going to slowely work on it and get as much of the rough casting out that I can. With a little more work and using the different grades of sand paper and emery cloth I should be able to get it really smooth..It is going to take some time though.... I kind of like how it looked before I used the compound on it, just the smooth Aluminium.






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