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Join Date: Jul 2005
Location: Yorkshire UK
Posts: 1,097
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Cam Cover Restoration
Im looking to restore my cam covers and want to know what the best way to do this is? I have a compressor and paint gun but will I need special heat proof paint or is it best to have them powder coated?
Steve |
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08-06-2005, 01:50 AM
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Join Date: Aug 1999
Location: Hickory NC USA
Posts: 2,502
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If they alum, media blasting them looks good. Also powder coating looks good too.
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'75 914-6 3.2 (Track Car) '81 SC 3.6 (Beast) '993 Cab (Almost Done Restoring) |
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08-06-2005, 03:44 AM
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Location: Kerrville, Texas
Posts: 1,021
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I just bead blasted mine but they didn't come out as clean and uniform in appearance as I hoped so ended up painting them with several coats of VHT silver which I cured in the kitchen oven. After I was done I found out the neighbor has a polishing set up which he loaned me for some other parts. I don't think polishing would have gotten out all the casting imperfections. Powder coating is a better choice than the do it yourself route after this experience. I had decided on paint since I thought it would be the quickest way to get the parts cleaned up during the rebuild. Turns out I had more time than I thought since the cams ended up getting sent out for a regrind at the last minute.
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1987 911 Guards Red Targa, nearing 200,000 miles, lowered, 7's & 8's, 964 grind cams from John Dougherty, A.P.E. Mass Flow Sensor with chip to match, cat bypass, strut brace, dual out muffler. Will consider newer model in 8 years when I turn 75 and then maybe not. 2012 BMW 528i (wife's) 2007 Toyota FJ (rain and off road days) |
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08-06-2005, 04:26 AM
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Location: Friendswood, TX
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I used citric paint stripper which worked well. Repainted them with a crackle red paint. They turned out real nice and have held up to the heat.
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John F. Lewis 74' 911S Targa + 930/02 76' 914 - Eternal Type IV project FOR SALE |
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08-06-2005, 07:28 AM
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Location: Greater Metropolitan Nimrod, Oregun
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note the top edges are either sanded or dipped in dark gray -- nice touch.
You can also do different ones in different colors red/black/silver - & change the colors when you change your oil.
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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08-06-2005, 02:48 PM
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Location: Friendswood, TX
Posts: 500
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Yep, that was a rotery sander to make the sticking out parts shiny. Then sealed it with high temp clear paint.
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John F. Lewis 74' 911S Targa + 930/02 76' 914 - Eternal Type IV project FOR SALE |
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08-06-2005, 03:17 PM
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Location: Kerrville, Texas
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Jubbie, Do you drive that thing? Looks clean enough to eat off of. How do you keep the exhaust pipe looking so good or is it new.
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1987 911 Guards Red Targa, nearing 200,000 miles, lowered, 7's & 8's, 964 grind cams from John Dougherty, A.P.E. Mass Flow Sensor with chip to match, cat bypass, strut brace, dual out muffler. Will consider newer model in 8 years when I turn 75 and then maybe not. 2012 BMW 528i (wife's) 2007 Toyota FJ (rain and off road days) |
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08-06-2005, 03:17 PM
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Will program for food
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I had mine powder coated...
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Greg Hnat 87 Targa Disassembled 90 944 S2 Auto-x, DE and semi-daily driver 98 Jeep Cherokee |
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08-06-2005, 03:26 PM
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Location: Greater Metropolitan Nimrod, Oregun
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now sand the PORSCHE letters with sandpaper on a flat plate
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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08-06-2005, 05:51 PM
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I used a automotive base/clear paint system but you can achieve the same effect with rattle cans. Good quality high temp paint and sand the raised portions using a sanding block and fine paper.
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1981 911SC Sunroof Coupe 2005 Volvo XC-90 2.5T Vans RV-8 Experimental Aircraft |
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08-06-2005, 06:53 PM
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Location: Peoples Republic of Long Beach, NY
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bead blast and use the Por mfg high end final clear coat. It's good for 400deg.
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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08-06-2005, 07:12 PM
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Location: Greater Metropolitan Nimrod, Oregun
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Anybody have a pic of a cover that's been bead blasted and then left "natural"?
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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08-06-2005, 11:03 PM
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Location: Kerrville, Texas
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Too bad you didn't ask two weeks ago after I blasted mine. They did not look as good as I would have thought. Lots of asting marks. It also looked like oil had "stained" them. They looked much better painted or powder coated however I wish I had tried to polish them too see what that would have looked like. Someone posted a pic of polished covers a few weeks ago. A search should turn it up.
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1987 911 Guards Red Targa, nearing 200,000 miles, lowered, 7's & 8's, 964 grind cams from John Dougherty, A.P.E. Mass Flow Sensor with chip to match, cat bypass, strut brace, dual out muffler. Will consider newer model in 8 years when I turn 75 and then maybe not. 2012 BMW 528i (wife's) 2007 Toyota FJ (rain and off road days) |
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08-07-2005, 12:42 AM
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Join Date: Mar 2005
Location: Cincinnati,Ohio
Posts: 107
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Bead Blasted Pics
Here are a few shots of aluminum raw after blasting.If you dont seal them tho,oil & grime will stick pretty easily,ruining the look.
   Personally,I'm painting mine,valve covers & cam chain boxes,then hitting raised edges to show aluminum. Chris
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"If you think it's gonna cost $1000, ya better budget for $2000." Chris 85 Carrera 3.2(Back on the road after rebuild) 02 Trans Am WS6 95 Eagle Talon 98 Bravada(sold) 07 G5 |
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08-07-2005, 07:36 AM
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Location: Friendswood, TX
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Actually I made a dining room table out of the engine
 My picture was taken with only a couple of hours on the engine. Looks similar, but not as clean now 1000ish miles later.
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John F. Lewis 74' 911S Targa + 930/02 76' 914 - Eternal Type IV project FOR SALE |
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08-07-2005, 01:50 PM
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Location: TX USA
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In '72 the chain and valve covers were Mg ... a rather difficult metal to coat with any durability! Aluminum is a much easier case by comparison!
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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08-08-2005, 12:42 AM
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Senior Registered User
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Hey Randy Webb,
Are there any heat transfer issues here. Does powder coated or painted covers transfer less heat than raw ones. Randy Jones 1971 911 "Iris" |
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08-08-2005, 01:01 AM
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Location: Greater Metropolitan Nimrod, Oregun
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Randy - in a word, No.
(Actually, there will be some very small changes - they could be measured in a lab - or maybe with some good field equipment. But there will be no functional significance to your car from the fact that painted or powder coated covers will transfer a tad more heat by radiation and a tad less by convection than will the metal surface.)
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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08-08-2005, 12:05 PM
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944
Jeep
911
1971 Porsche 911 3.2 
