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Motor Prep for paint

  • Thread starter Thread starter Good Times
  • Start date Start date
Nice job GT. I am anxiously waiting your results as I plan on taking this same course of action. I need a bigger compressor though first. Couple of questions:

How much and what kind of soda did you use?

How much pressure did you use and how big is your compressor?

Were you able to take off the really baked on oil grime?

Thanks and can't wait to see the final results. But, I've always wondered how well tha paint sticks over time and many heat/cool cycles. Would love to hear from others who have painted their engines how well it has held up over the years.
 
Sci85 said:
How much and what kind of soda did you use?

How much pressure did you use and how big is your compressor?

Were you able to take off the really baked on oil grime?

Thanks and can't wait to see the final results. But, I've always wondered how well tha paint sticks over time and many heat/cool cycles. Would love to hear from others who have painted their engines how well it has held up over the years.
Click to expand...

Thanks Sci.

I used Arm & Hammer baking soda from the grocery store. I used four "medium" boxes. There were about .89 each.

I dialed the compressor to 120 psi. I have a 5 hp 25 gallon compressor.

It took the oil off. I was pleased.

I had to tap on the gun as I used it since it is gravity fed. I found that short blasts did better then holding the trigger down.

As far as the paint, even if it only lasts four or five years that ok with me. I'd rather have it look better. I'll probably do a top end rebuild before then anyway and would get it blasted anyway. With the way AirCraft paint stripper works it's not that big of a deal to repaint. Most of the guys on the forum that have done it seem to have had good results.

Here's the polishing results so far. The ignition cover is mid process. It's taking a while to sand there parts. Lots of nicks and scratches.

before:
5bbb4cdb.jpg


after:
b94e704f.jpg
 
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Thanks GT. I'll have to save up for a good used bigger compressor. I just have a little pancake style. Looks like baking soda is the way to go then.

You've got the polishing skill down pat. Don't you just love turning something all old and nasty into something bright and shiny? One of my favorite parts of a rebuild.
 
Sci85 said:
Thanks GT. I'll have to save up for a good used bigger compressor. I just have a little pancake style. Looks like baking soda is the way to go then.

You've got the polishing skill down pat. Don't you just love turning something all old and nasty into something bright and shiny? One of my favorite parts of a rebuild.
Click to expand...

You can do it with a small compressor, just blast shorter, let it refill longer. Be patient.
It will take longer, can't be helped. And if the little compressor burns up, you have a great excuse to get a bigger one.:lol:
 
It's looking great! can't wait to see her back together and see how the dupicolor turns out. I've used VHT engine enamel on a couple of blocks (with no primer as I could never get it up here). The oldest was 4 yrs and the paint still looked almost like the day I put it one but VHT does not like gas that much or brake fluid, but touch ups are easy. This spring my GS1000G is going to get POR-15 engine enamel, I'm looking forward to seeing how it works. Just a note for the soda blasting, SVSooke suggested trying "washing soda" instead of the baking soda and WOW what a difference. Much harder so it took everything (even the old burnt on oil) off much faster and better. A big bonus was there was minimal dust as well. I 'may' stick to baking soda for the carbs but for anything else it's washing soda from now on. I can buy it up here for less than baking soda too boot.
 
I was going to give the washing soda idea here but my friend above let it out of the bag.Going to borrow his blaster and try.Used it with my DIY blaster.Worked better than baking soda with that contraption.Can't wait to try it with a real blaster.Trying Plasti Kote 207 Aluminium Engine Enamel on mine.I's gots to be differents:D
 
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azr said:
It's looking great! can't wait to see her back together and see how the dupicolor turns out. I've used VHT engine enamel on a couple of blocks (with no primer as I could never get it up here). The oldest was 4 yrs and the paint still looked almost like the day I put it one but VHT does not like gas that much or brake fluid, but touch ups are easy. This spring my GS1000G is going to get POR-15 engine enamel, I'm looking forward to seeing how it works. Just a note for the soda blasting, SVSooke suggested trying "washing soda" instead of the baking soda and WOW what a difference. Much harder so it took everything (even the old burnt on oil) off much faster and better. A big bonus was there was minimal dust as well. I 'may' stick to baking soda for the carbs but for anything else it's washing soda from now on. I can buy it up here for less than baking soda too boot.
Click to expand...

I thought about using the washing soda, but chose the plain soda. Wasn't sure if it was a harder or softer substance. Now I know. I'll use that next time! There was a lot of dust with the regular soda for sure. I looked like the abominable snowman when I was finished. :lol:

From what I've heard about POR-15 they make a great product. I bet that engine enamel is good stuff.
 
tkent02 said:
.....................Drum rollllll..............................
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......................................................................
.......................................................................
Click to expand...


That was a long drum roll for sure but the weather finally got warm enough to paint so I got er done today.

Masked and ready to go:
a1579037.jpg


e3152d3e.jpg


One coat of Duplicolor high heat engine primer:
1bbc2efe.jpg


3a189dcc.jpg


Three coats of Duplicolor Aluminum high heat engine enamel. All done 10 minutes apart within the one hour spraying window:
393386b9.jpg


28f480b8.jpg


c8147f10.jpg


Let it dry for a couple of hours and then unmasked/debagged:
b31d6556.jpg


287907f4.jpg


07a94c26.jpg


I was pleased with the result. Not perfect, but it looks a whole lot better. I liked the Duplicolor as well and really like the final result with the aluminum. I'm replacing the intake boots so no matter that they got painted.

I wanted to use VHT universal aluminum but couldn't get it locally. This worked out just as well in my opinion.
 
Very nice, Congrats! I have a couple of engines to paint, how tough is the Duplicolor after it dries?
 
I liked the way the DupliColor went on and how it looks when it's done, but was sorely disappointed in it's reaction to gas spills. I must've re-painted my counter shaft sprocket cover 3 times before getting to the point of painting it with catalysed urethane. I guess covering that area with a couple of rags before removing the tank or disconnecting the petcock hoses would've been the smart thing to do...but nooooooo....:rolleyes:
 
nvr2old said:
I liked the way the DupliColor went on and how it looks when it's done, but was sorely disappointed in it's reaction to gas spills. I must've re-painted my counter shaft sprocket cover 3 times before getting to the point of painting it with catalysed urethane. I guess covering that area with a couple of rags before removing the tank or disconnecting the petcock hoses would've been the smart thing to do...but nooooooo....:rolleyes:
Click to expand...

Well, stink. Thanks for the heads up though.

rustybronco said:
Hummmmmmm.... I wonder how it matches?

http://www.plastikote.com/products/Specialty/Engine-Enamel.html
Click to expand...

I wonder if this would be compatible with the Duplicolor and I could do a clear coat over it. Anyone have any idea?
 
Great job GT!
I am also going to paint my motor this off season but I have a question: is there any special technique you used to ensure that you paint all of cooling fins?
 
SVSooke said:
Funny you should ask,


Used that on my 78 1000 engine.So far so good.Used regular Plasti-Kote satin black on the 85 750 engine,spilled gas on that.No effect I could see.
Click to expand...

So did you use the plastikote clear over the duplicolor? Or you used the duplicolor on one motor and the plasticote on the other? If so how did the duplicolor work out for you?

Motor looks great by the way.

seant2h said:
Great job GT!
I am also going to paint my motor this off season but I have a question: is there any special technique you used to ensure that you paint all of cooling fins?
Click to expand...

Thanks s2h. No special technique. Just got down on the level of the motor when I was painting it and made sure I was spraying at the same angle of the cooling fins. Three coats covered them well.
 
Greg, IT looks good, but how well did it match the original colour? To me it looks to bright compared to the original paint.
 
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