carb finish question
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=8803
Printed Date: April-27-2024 at 8:00pm
Topic: carb finish question
Posted By: 81nautique
Subject: carb finish question
Date Posted: October-25-2007 at 9:34pm
| Got my replacement carb in today but before I put it on I was wondering if there are any tricks to keeping a carb looking new. Seems they tarnish pretty quickly and start to look like crap. |
Replies:
Posted By: 8122pbrainard
Date Posted: October-26-2007 at 12:09pm
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Alan, I seem to remember that someone here had their carb powder coated. I feel that would work because the curing temp of the powder is low enough that it wouln't hurt the zine die casting. The bad thing is it would require lots of disassembly and masking. Lots of work! Anodizing is another option but it being a chemical etching process, I would be afraid of it hurting some of the porting. Clear laquer out of a spray can could be used but it may yellow with the heat and it may flake off as well. This is a tough one unless you want to go through a lot of work for a high temp powder coat.
Thanks for filling me in on the potential ebay scam(s). ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Hollywood
Date Posted: October-26-2007 at 12:23pm
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Silicone spray? ------------- |
Posted By: bmiller
Date Posted: October-26-2007 at 2:30pm
| They do sell engine clear coat at any auto parts store in a spray can that is rated for 800 degrees.That may do the trick for you. |
Posted By: backfoot100
Date Posted: October-26-2007 at 2:38pm
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Shoulda just invested in a chrome plated one then. ------------- When people run down to the lake to see what's making that noise, you've succeeded. Eddie |
Posted By: Waterdog
Date Posted: October-26-2007 at 2:41pm
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Maybe Eastwood Co. they love stuff like that. ------------- - waterdog - http://www.correctcraftfan.com/diaries/details.asp?ID=3896&sort=&pagenum=2&yrstart=1978&yrend=1978" rel="nofollow - 78 Ski Tique |
Posted By: 81nautique
Date Posted: October-26-2007 at 4:16pm
Thanks, great site, I might invest in a small powder coat system and play around. ------------- |
Waterdog wrote:Posted By: SNobsessed
Date Posted: October-26-2007 at 10:43pm
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If you powdercoat Zinc, make sure & prebake the zinc 1st. Otherwise it can outgas & leave blisters in the finished paint. I've seen it often at work. ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: 8122pbrainard
Date Posted: October-27-2007 at 10:42am
Chris, You are talking about pre baking the zinc powder before you blend it to the base carrier correct? How hot and for how long? What is the zinc out gassing from? Moisture problems in the zinc powder? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: SNobsessed
Date Posted: October-27-2007 at 10:58am
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Sorry for being unclear. The Zinc casting will outgas (don't know the exact metallurgy phenomena) when it goes thru the paint bake cycle, creating blisters in the paint. The best prevention for this is to prebake the casting (Carb body in this case) before painting. At the factory I work at, our supplier has to 1st run the bare parts thru his bake oven w/o painting & this has fixed the problem. So I would say that whatever the bake time & temp is for the powder coat would be a good guide. Post a photo of the finished carb. You going to wax it too? ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: 8122pbrainard
Date Posted: October-27-2007 at 11:59am
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Chris, Its been awhile since I've been over to the powder coater who does our work so maybe the process has changed? I always thought that all parts were preheated before the powder is electrostaticly applied and then the part is heated again. I had a complete powder line quoted about 10 years ago and remember that the monorail conveyor went through a preheat tunnel after the cleaning stage. The project never went through because the amount of work we wanted to do required a rather large system. The monorail conveyor even went up onto the roof for several stages due to space problems! Are they skipping the part preheat now? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: SNobsessed
Date Posted: October-28-2007 at 9:04pm
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Well, it's hard to say if our powder coater is using the same set up as yours.
I hope the Carb project goes well. Alan - keep us posted on the outcome! ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: 81nautique
Date Posted: October-29-2007 at 9:26am
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Thanks for the tips Chris, I'm not sure what I'll do if anything other than bolt it on. I've got some other parts going to the powdercoater this winter so I'll ask him about it.
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Posted By: Mojo
Date Posted: October-29-2007 at 4:02pm
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Alan,
Question, How is this powdercoating system going to help get stringers in the 76' ??? HA.... Moj  ------------- 05' SV211 TE 73' Martinique had:96' SNOB had:76' Nautique had 77 Tique |