E-Bodies.org Cuda Challenger Forum

Technical Shop => Engine, Transmission & Rear End => Topic started by: nsmall on July 04, 2017, 05:12:19 PM

Title: Engine Painting tips
Post by: nsmall on July 04, 2017, 05:12:19 PM
I'm changing my engine color.  The engine was recently rebuilt by the previous owner and has a nice coat of paint on it but I'm going with a different color.

I was planning on using a red Scotch-Brite pad and scuff it, clean off the grease and grime...bam, lay down some rattle can paint.

I'll take any suggestions as I do want the paint to last but I also understand that it will only look nice for so long.

I thought someone started a thread on this but I've looked and looked and cannot find it.

Thanks

Neil
Title: Re: Engine Painting tips
Post by: Cuda Cody on July 04, 2017, 05:57:26 PM
Here you go buddy.   :bigthumb:

https://forum.e-bodies.org/reference-material/18/how-to-prep-and-paint-a-340-ta-engine/1049/

Title: Re: Engine Painting tips
Post by: nsmall on July 04, 2017, 09:40:19 PM
Thank you.  I remember you chiming in Cody.  Anyone have any recommendations for a decent spray can of primer?
Title: Re: Engine Painting tips
Post by: Cuda Cody on July 05, 2017, 12:09:49 AM
They make a rattle can spray paint epoxy that is two part.  It will be WAAAAAY better then any single part rattle can primer.  It's a one time use because you press the button on the bottom to mix the 2 parts inside the rattle can then use it.  I think it's called 2K and the hardener is in the can.

Quote from: nsmall on July 04, 2017, 09:40:19 PM
Thank you.  I remember you chiming in Cody.  Anyone have any recommendations for a decent spray can of primer?
Title: Re: Engine Painting tips
Post by: Shane Kelley on July 05, 2017, 03:08:47 AM
Get you a can of the 2k clear also. Let you color dry and hit it with some 2k clear. That will make it shine and hold up better. I use a gun with base and clear on all my motors. They hold up great and clean real nice. The 2k stuff will get you close.
Title: Re: Engine Painting tips
Post by: nsmall on July 05, 2017, 02:52:36 PM
Okay I'm buying the primer and I'm buying the clear.  Neither say anything about high temperatures.  Are these okay to use on an engine?

As for the wax and grease remover should I buy this.....https://www.amazon.com/gp/aw/d/B002969BQW/ref=ox_sc_act_image_2?smid=ATVPDKIKX0DER&psc=1

Lastly should I try to take as much paint off the engine as I can before putting it in primer?

Thanks

Title: Re: Engine Painting tips
Post by: Cuda Cody on July 05, 2017, 02:55:21 PM
Putting any paint or primer over old paint will only be as strong as your old paint.  So if the paint that is on there now is cheap rattle can, then there is no point to buy 2k primer, 2k paint and 2k clear.   :alan2cents:

If the paint that is on there now is super good, then you only need to scuff it with some red scotch bright (about 320 grit), clean, clean, clean and then clean some more, then primer, paint and clear.
Title: Re: Engine Painting tips
Post by: RUNCHARGER on July 05, 2017, 06:42:26 PM
I always wipe them with body shop wax and grease remover, no matter how you spray them.
Title: Re: Engine Painting tips
Post by: nsmall on July 08, 2017, 01:21:35 PM
@RUNCHARGER (https://forum.e-bodies.org/mlist/runcharger_192)

I'm assuming it would be best to keep the exhaust manifold gasket area free of paint?

I'm probably going to put headers on my car and so I was thinking of buying them now and putting the gasket in the area where I'm going to paint the engine and keep the area under the gasket free from paint.

Not sure if that makes sense but I'm trying to keep the best seal with the gasket against the block, yet have the paint job turn out good on the engine.

Thanks

Neil
Title: Re: Engine Painting tips
Post by: Shane Kelley on July 10, 2017, 11:26:42 AM
Here's how I do them. I used vinyl lettering pre mask and masking tape. But 2" masking tape will work fine also. I clean everything really good. I usually put lacquer thinner in a paint gun and use it like a power washer with high pressure and clean the engine. Then I blow it dry. Next I mask everything off and then fasten the gaskets down with a couple bolts and washers. Then I trace them with a pen. Next remove bolts and gaskets. Use a razor blade and cut just inside the trace line. This will help make sure you have no bare metal showing once it's all assembled. I used etching primer and a thin coat of sealer before the base color and clear. The epoxy primer will work in place of the etch and sealer. Before the paint dries, carefully remove all the mask. If you let it dry it will be hard to remove without peeling paint.
I'm not saying my way is better than anybody else's. It's just how I do it and it does work nicely.
Title: Re: Engine Painting tips
Post by: Sleepychallenger on July 10, 2017, 11:53:59 AM
Da*n that's one nice looking engine  :yes:
Title: Re: Engine Painting tips
Post by: nsmall on July 11, 2017, 03:02:03 PM
@Shane Kelley (https://forum.e-bodies.org/mlist/shane-kelley_440)

As always thanks for sharing info and your pictures.

When you mask off areas you don't want to paint do you use tape and paper?

Im debating taking everything off the engine, but I know that's the best way for great results. 

Thanks everyone.

Neil

Title: Re: Engine Painting tips
Post by: Shane Kelley on July 11, 2017, 06:19:30 PM
Just use some good quality 2" masking tape. On the large areas just do a good overlap of the tape. Sometimes when you have to bridge across large areas (lifter valley etc) run your tape the other direction crossing over the first layer. Kind of like a weave.
Title: Re: Engine Painting tips
Post by: RUNCHARGER on July 11, 2017, 07:02:34 PM
That's what I do as well. You use a bit of tape but it's no big deal.
Title: Re: Engine Painting tips
Post by: nsmall on August 06, 2017, 12:31:42 AM
@Cuda Cody (https://forum.e-bodies.org/mlist/cuda-cody_1)

The 2k primer and paint worked awesome when it comes to durability for my K frame, suspension pieces, and rear end.

The 2K primer was a little chunky so the Finish isn't quite what I would want but I know it's at least very durable versus a rattle can.

As for the engine I'm planning to use 2K primer but I'm a little torn on what choice to use for paint.  I have some rattle can Chrysler orange engine paint.  But I do have the option to buy some 2K engine paint.  It's from eastwood and it's unfortunately Chevy Orange.... Try to ignore I just said Chevy.

Will the 2K engine paint be considerably better than just the rattle can paint?

For the record Eastwood sells 2K high heat engine primer.

Thanks Cody.  The car is coming along pretty good.  I really like restoring parts.   Here are the latest pics....
Title: Re: Engine Painting tips
Post by: Cuda Cody on August 06, 2017, 01:06:34 AM
2K paints will always be better then single part paints (normal rattle cans) regardless if they are high heat rated or not.  Single part rattle can paints are a thermoplastic and can always be removed with heat or a chemical.  2K paints are a thermoset and once mixed can not be removed or easily affected by chemicals.  Think about it like this, thermoplastics (rattle cans) are like butter in that they can be melted and a 2K thermoset (2 part paints that have a hardener) is like concrete in that it is a chemical reaction that can not be undone.  So yes, 2k two part paints will always be stronger then single part paints.

The key for engines is to use a flexible agent primer that allows the engine and metal to heat up and move without cracking the paint.  That's why I use the primers I do so they hold up well over time.
Title: Re: Engine Painting tips
Post by: Cudalbs on August 06, 2017, 08:33:00 AM
Thanks for the pics Neil, keep them coming as you move along.


Sent from my iPad using Tapatalk
Title: Re: Engine Painting tips
Post by: 7E-Bodies on December 10, 2021, 07:10:38 PM
@Shane Kelley (https://forum.e-bodies.org/mlist/shane-kelley_440) realizing that this is an old thread, I still have to ask. I'm about ready to shoot color on my newly rebuilt 440 for my 70 RT. My PPG guy told me not to go with BCCC and to stick with the single stage for durability. I don't know who to believe, but I'd lean towards you, especially if you've had long lasting success. I already have many of the chemicals for Deltron BCCC (AKA huge bucks), so I'd only need to get a quart(?) of (EV2?) mixed up to shoot over my PPG Epoxy? I also have the big bucks clear. Do you by chance have the paint formula and would you share it? Any help appreciated.
Title: Re: Engine Painting tips
Post by: MoparLeo on December 10, 2021, 10:32:08 PM
The number one rule in paint is Prep... Clean, clean, clean., And thin coats, 3 thin is much better than 1 thick.
Title: Re: Engine Painting tips
Post by: JS29 on December 11, 2021, 06:58:20 AM
I know you asked shane kelley, but I agree with your paint guy. Single stage would be better.  :alan2cents:
Title: Re: Engine Painting tips
Post by: Wayne on December 11, 2021, 07:08:45 AM
I used a single stage urethane enamel.  3 light coats of color after being primed.  Trust me, you won't regret it and will never paint an engine another way.  Its held up better than you can imagine and still looks incredible. 

Title: Re: Engine Painting tips
Post by: headejm on December 11, 2021, 09:15:37 AM
 :iagree: I wouldn't go BCCC on an engine. I used 2K urethane over black epoxy primer. Very happy with the results.  :alan2cents:

Original hemi orange engine paint is Ditzler EQE-60626 w/ 25% Ditzler DX-265 flattening agent. That is the formula I followed.
Title: Re: Engine Painting tips
Post by: 7E-Bodies on December 12, 2021, 10:44:04 AM
@headejm (https://forum.e-bodies.org/mlist/headejm_14) stunning example! Pics and info saved. THANK YOU
:perfect10: :yes:
Title: Re: Engine Painting tips
Post by: tparker on December 12, 2021, 10:33:07 PM
I went with Frank Baldason's engine paints found at https://www.rogergibsonautorestoration.com/wp-content/uploads/2021/12/2015_catalogGLTfMy.pdf. It was expensive at about $100 I sprayed it, but I seem to recall you could do it with a brush.

I just tapped it up and sprayed it. Found a couple YouTube vids and followed them. Only tips are use good tape, fresh razor blades to cut tape, and use a little grease on the freeze plugs. Make sure you clean the surfaces nice before painting and after taping.