Repainting engine components
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=1282
Printed Date: November-22-2024 at 10:09am
Topic: Repainting engine components
Posted By: Guests
Subject: Repainting engine components
Date Posted: March-03-2005 at 3:05am
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I wanted to paint a few of my engine parts on my 82 that have chipped away over the years. Valve covers, pulley, raw water pump, thermostat cover, exhaust/water manifolds, and morse control cover.
What is the best paint to use and the best way to do this. I had thought I was going to wetsand the old paint, and then spray the pieces with rusteolum. What do you think? |
Replies:
Posted By: AWhite70
Date Posted: March-03-2005 at 11:44am
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For engine parts you'll want to use a high temp engine paint. I doubt regular rustoleum would be up to the task. When I painted the engine in my '79 Ski Nautique I used some engine paint that was available at the local auto parts store.
The block and heads were bare metal from being tanked at the machine shop. For the pieces that had old paint on them I didn't worry about sanding them. I just took a wire brush and knocked off any loose paint and rust and resprayed. It turned out pretty nice. |
Posted By: David F
Date Posted: March-06-2005 at 12:12pm
| Do NOT use regular enamel paint. Two problems: Cannot hold up to temperatures of many engine components and is not gasoline resistant. Like mentioned previously, use an engine paint. If spraying on bare metal, you should use primer first or at least spray on many coats...otherwise, the moisture will get through and rust will come through over time. |
Posted By: kenny g
Date Posted: March-06-2005 at 12:43pm
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i used plasti-kote fast dry engine enamel.
it resists heat to 500 degrees. primer dose not ! so stay away from primer when painting the engine . ------------- kenny g |
Posted By: jameski
Date Posted: March-06-2005 at 6:07pm
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I've never used primer on engine parts. I always use several coats of engine paint and I've had great success. ------------- current boat http://www.correctcraftfan.com/diaries/details.asp?ID=1977 - 94 Sport Nautique previous boat http://www.correctcraftfan.com/diaries/details.asp?ID=601 - 78 Martinique |
Posted By: 882001
Date Posted: March-06-2005 at 7:57pm
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i used straight rustoleum worked like a champ. if any part of your motor reaches 500 you will have a fire. a steel lawn chair painted black in august in texas will get way hotter than my manifold with a 143 degree thermostat. ------------- kemah texas http://www.correctcraftfan.com/diaries/details.asp?ID=163&yrstart=1986&yrend=1990 - 1988 skinautique "2001" |
Posted By: kenny g
Date Posted: March-07-2005 at 12:07pm
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i dont make the product,but thats what they advertise on the can.
i would think those heads get pretty warm.especially around the exaust ports. ------------- kenny g |
Posted By: Tim D
Date Posted: March-07-2005 at 4:02pm
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Before you paint, clean with a degreaser like castrol purple let dry then use lacquer thinner. And like David F mentioned using primer, metal etching primer works very well, because some brands of paint don't stick well to aluminum. ------------- Tim D |
Posted By: kenny g
Date Posted: March-07-2005 at 4:16pm
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my opinion there is no better degreaser than lacquer thinner.it literarily desolves grease.leaves no film or residue and your ready to paint.
think about it.is that primer heat resistant ? ------------- kenny g |
Posted By: David F
Date Posted: March-07-2005 at 5:42pm
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Kenny:
Obviouly, if using primer, a high temperature primer should be used as the application dictates. High temperature primers are available. You are correct, lacquer thinner is an excellent cleaner and a bit (but not much) safer and less volatile than acetone. MEK also works well. |
Posted By: David F
Date Posted: March-07-2005 at 5:48pm
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Here is an example of a high temp primer.
http://www.hirschauto.com/acb/showdetl.cfm?&DID=27&User_ID=212117&st=4412&st2=-200960470&st3=112341673&Product_ID=5&CATID=1 |
Posted By: 66polyhead
Date Posted: March-08-2005 at 12:30am
GeeZZ, If it's aluminum, clean it with 5% phosporic acid, it's an etech,and primer, A boat engine runs @ 160 F. Paint it with 1200 F. black stove paint. Stay away from spray cans, JUST SAY NO!, brush it on.------------- http://www.correctcraftfan.com/diaries/details.asp?ID=220&yrstart=1925&yrend=1970" rel="nofollow - KY Wildcat |
Posted By: David F
Date Posted: March-08-2005 at 11:24am
| Yep, that should do it....LOL. |