: How do you SAFELY clean the valve covers?



eyewonder
03-18-12, 11:09 PM
With the engine out, and apart for Head Gasket repair, it seems like a good time to clean everything up. My valve covers are yucky, and peeling. Definitely in need of cleanup & painting.

What is a decent, safe way (as in easy) to get them clean? Bead blasting? Sand blasting (likely not)? Some sort of chemical solution? And then, can they be powder-coated at the local paint shop? Or just do rattle-can painting.

Cheers,
Steve

Faded Crest
03-19-12, 12:10 AM
I plan to media blast if I have to but I heard the old paint/powder coat is pretty stubborn. Hopefully MoistCabbage will chime in. We were discussing this subject in my thread last night.

Submariner409
03-19-12, 09:26 AM
The marine industry uses a lot of baking soda blasting - not only because it's environmentally safe but because it really eats stuff off fiberglass. Valve (cam) covers are easy to clean after any sort of blasting - but be careful - you're not cleaning steel ! Use solvent, then soap & water, dry. Powder coat.

eyewonder
03-19-12, 11:33 AM
Sub,

Not too many big marine facilities in SE Kansas, but there must be several aviation shops in the Wichita area that do similar work. I'll be checking them out.

On the powder coating, I assume that you do NOT coat the inside? And have you any experience with the DIY kits & kitchen oven technique?

Cheers,
Steve

Faded Crest
03-19-12, 11:54 AM
I read somewhere on the forum that the DIY kits worked very well. Unfortunately I can't remember who it was or where they posted. They joked about hogging the wife's oven.

vincentm
03-19-12, 02:24 PM
I read somewhere on the forum that the DIY kits worked very well. Unfortunately I can't remember who it was or where they posted. They joked about hogging the wife's oven.

My hg thread 89 falcon's post.

Submariner409
03-20-12, 10:41 AM
On the powder coating, I assume that you do NOT coat the inside? And have you any experience with the DIY kits & kitchen oven technique

^^^ As above.

One of our car club members near here is a restorer - he powder coats in his garage and has done small parts for me. The process takes some specialized tools but it is not rocket science.

89falcon
03-20-12, 03:07 PM
Sub,

Not too many big marine facilities in SE Kansas, but there must be several aviation shops in the Wichita area that do similar work. I'll be checking them out.

On the powder coating, I assume that you do NOT coat the inside? And have you any experience with the DIY kits & kitchen oven technique?

Cheers,
Steve

Steve,
I've done the Valve covers. The paint/coating stripper from autozone works fine on the covers. They WILL have pits......why Cadillac decided to save a couple pounds using magnesium instead of aluminum on a 4,000+ lb car is beyond me. Once cleaned with the stripper, sand with a wire brush of paper. If you go the powder coat route, you'll need to heat them up to around 425 to 450 for around 30 minutes. They will smoke like crazy (off gas) and get "shiny". You have to "off gas" them at the higher temp so they WON'T give off gas while the powdercoat is curing.
Caswell plating sells the powder...lots of colors and pictures. Google them. Get the cheap powder gun from Harbor freight. it may not be perfect for industrial use, but it is very good (when you consider the price) for home/hobby use. HF also has powder...but the colors are drab and lame. If you do it once, you'll be hooked, and the finish holds up much better than paint.
as far as getting it on the inside....you WILL. I tape off the oil passages, but powder relies on an electrical charge to stick to the metal. Some WILL get on the inside since the inside will have a charge if the outside does. I don't consider it a big deal since it's all backed on...and it shouldn't be much.

eyewonder
03-21-12, 03:44 PM
I'll be trying the paint stripper this weekend, and might just cruise garage sales/auctions for an oven. Nothing like more projects!

Cheers,
Steve

89falcon
03-21-12, 05:47 PM
I'll be trying the paint stripper this weekend, and might just cruise garage sales/auctions for an oven. Nothing like more projects!

Cheers,
Steve

Steve,

Careful.....it's ADDICTING! Next thing you know, your lawnmover will be covered in "candyed red" and "lollipop purple"...

Build you own oven......

http://forum.caswellplating.com/oven-building-forum/

It's OK to use your wife's....as long as she'll be out of the house for a couple days.....just open all the windows and doors and plug in a couple fans!:shhh:

vincentm
03-21-12, 06:37 PM
Steve,

Careful.....it's ADDICTING! Next thing you know, your lawnmover will be covered in "candyed red" and "lollipop purple"...



http://i41.tinypic.com/4io2lu.jpg


:hide:

Faded Crest
03-22-12, 12:10 AM
Those yours Vincent?

vincentm
03-22-12, 12:30 AM
Yup, 89 falcon painted them

Faded Crest
03-22-12, 12:41 AM
Very cool. He's near you? or you shipped to him? :hmm: :sneaky:

vincentm
03-22-12, 01:01 AM
He shipped to me

89falcon
03-23-12, 09:22 AM
Yup, 89 falcon painted them


NOT painted.....COATED! :lies:

I had a set sitting in the garage, and now my wife is thankful that they are gone.

Crest, I grew up is South Cackalacki...just down I77.....north of the Sewer of the state (columbia) and the University of South Carolina (was that redundant? Go Tigers!), but now call Colorado home. If I was near you, I'd gladly let you use some of my powder and my gun. I probably have about $250 or less sunk into powder (I have a few colors) and equipment (gun....I already had a nice size air compressor.

FWIW, if you clean up your block, and do a more complete rebuild, you'll find that the block fits nicely into a conventional kitchen oven......and looks VERY good with clear over chrome powder....and will stay MUCH cleaner. Vince (a good friend and even better guy) also has my old block, which is coated, if you want to see pics of what that looks like coated...but that's a longer story with other players that's probably not suited for the boards...:D
Vince is the unluckiest N* owner on the planet...his rebuilds have required 3 different blocks, at least one new crank and many new rods. Most of us find the bottom end of our N*s in great shape, but the person doing Vince's build has discovered problems with almost all of his parts......:hmm:

vincentm
03-23-12, 10:07 AM
NOT painted.....COATED! :lies:

I had a set sitting in the garage, and now my wife is thankful that they are gone.

:cool2:


Vince (a good friend and even better guy) also has my old block, which is coated, if you want to see pics of what that looks like coated...but that's a longer story with other players that's probably not suited for the boards...:D
Vince is the unluckiest N* owner on the planet...his rebuilds have required 3 different blocks, at least one new crank and many new rods. Most of us find the bottom end of our N*s in great shape, but the person doing Vince's build has discovered problems with almost all of his parts......:hmm:

PM'd you. Yea my luck hasn't been the greatest.

Faded Crest
03-23-12, 10:50 AM
Yeah, reading Vincent's head gasket thread has me a little paranoid. :lol:

Well Hopefully we will be out in Arizona before too long... That's our plan, just have to tie up some loose ends (sell the stupid house). The Charlotte area just isn't for me. I'm from New England originally and am ready for a big change.

I am kicking myself for selling my 80 gal compressor a few years ago. :duh: I was just so burned out on car stuff after the car lot years that I couldn't imagine I'd ever get back into it. But your powder coating has me intrigued, so maybe I'll give it a try someday...

But for now I've got other fish to fry so I'll probably just find someone around here to do it for me.

vincentm
03-23-12, 11:04 AM
Yeah, reading Vincent's head gasket thread has me a little paranoid. :lol:

Well Hopefully we will be out in Arizona before too long... That's our plan, just have to tie up some loose ends (sell the stupid house). The Charlotte area just isn't for me. I'm from New England originally and am ready for a big change.

I am kicking myself for selling my 80 gal compressor a few years ago. :duh: I was just so burned out on car stuff after the car lot years that I couldn't imagine I'd ever get back into it. But your powder coating has me intrigued, so maybe I'll give it a try someday...

But for now I've got other fish to fry so I'll probably just find someone around here to do it for me.


I lived in Pheonix/Tempe for awhile, i miss it.

Faded Crest
03-23-12, 11:08 AM
I have a close friend in Phoenix, but I dislike large cities. So the plan is to check out Kingman, right on old Route 66.

I love the vogues on your Eldo by the way.

vincentm
03-23-12, 11:32 AM
I have a close friend in Phoenix, but I dislike large cities. So the plan is to check out Kingman, right on old Route 66.

I love the vogues on your Eldo by the way.


Oh boy, Kingman gets super hot. And yea, i plan to wrap my wheels with matching Vogue Tyres..but now that im going though a divorce i dont see that happening for some time.

Faded Crest
03-23-12, 12:27 PM
Oh boy, Kingman gets super hot. And yea, i plan to wrap my wheels with matching Vogue Tyres..but now that im going though a divorce i dont see that happening for some time.

Actually Kingman is a lot cooler than Phoenix... usually about 10 degrees on average because of the elevation... over 3500 ft. I like Kingman because if you get too hot you can go up the Hualapai mountain 30 minutes away, and if you get too cold in the winter you can go over to Bullhead or L. Havasu about 45 minutes, away.

But there is nothing more miserable to me than the 95+ degrees with 95% humidity we have here in southeast during the summer. It's even uncomfortable in the evenings because the humidity doesn't let up. It may get about 7 or 8 degrees hotter during summer days in Kingman than here, but as they say, "it's dry heat"... And after experiencing both I agree that it makes all the difference. :D

vincentm
03-23-12, 12:43 PM
You should move here to SE WAshington, its all desert, summers here are 90+ dry, winters get down to -10 but dont last long.

Faded Crest
03-23-12, 01:18 PM
-10? Had enough of that growing up in Maine... :lol: I remember one fine morning when I was out walking my newspaper route that the mercury read -18.