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Painting Transmission #1639151
06/27/14 02:49 PM
06/27/14 02:49 PM
Joined: Oct 2005
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RoadRunner73 Offline OP
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RoadRunner73  Offline OP
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Going to clean up my tranny and paint it with the same paint as my engine block, anything I should know before I go spraying? Anywhere I should cover up?


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1973 Plymouth Road Runner
Re: Painting Transmission [Re: RoadRunner73] #1639152
06/27/14 02:56 PM
06/27/14 02:56 PM
Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY Offline
Truck Nut
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Truck Nut

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Kent, Wa
I personally wouldnt paint it after cleaning. Paint seals the aluminimum and will make the trans retain some heat. As we know, they wernt painted when new.


I am truckless..
Re: Painting Transmission [Re: 340SHORTY] #1639153
06/27/14 03:03 PM
06/27/14 03:03 PM
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RoadRunner73 Offline OP
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Right, unfortunately my case wasn't cleaned when it was rebuilt and the person who had it before me had it primered, should I try to clean it off the best I can - I'd like it to look good obviously.


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1973 Plymouth Road Runner
Re: Painting Transmission [Re: RoadRunner73] #1639154
06/27/14 03:13 PM
06/27/14 03:13 PM
Joined: Oct 2006
Posts: 7,117
Iowa
burdar Offline
Owen's Dad
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Owen's Dad

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Iowa
I'm going to paint mine too. It's not a stock restoration so I can do what ever I want. I will be removing the tail shaft bolts, pan and valve body before spraying. That way I can refinish those in another color. I don't want it to look like I didn't care and just sprayed everything all at once.

Re: Painting Transmission [Re: 340SHORTY] #1639155
06/27/14 03:17 PM
06/27/14 03:17 PM
Joined: Dec 2003
Posts: 21,877
Trumussia
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jcc Offline
If you can't dazzle em with diamonds..
jcc  Offline
If you can't dazzle em with diamonds..
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Trumussia
Quote:

I personally wouldnt paint it after cleaning. Paint seals the aluminimum and will make the trans retain some heat. As we know, they wernt painted when new.




I'll respect your opinion, however, not so sure about the correctness of the term "seal", however a case might be made it insulates it, how much, I suspect not much, I suspect a coat of oil/grease/grime might insulate it more, and being painted would be easier to clean, and while we are splitting hairs, a black color will radiate more heat then a lighter color, and lighter color will reflect more heat from hotter nearby surfaces, all to the point, can't believe the OP would ever notice any difference no matter what he chooses.


If you can't dazzle them with diamonds, don't waste your time, because nothing will
Re: Painting Transmission [Re: jcc] #1639156
06/27/14 03:23 PM
06/27/14 03:23 PM
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Posts: 173
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RoadRunner73 Offline OP
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I couldnt imagine it would make much difference, I've seen others also have them painted, even though I do realize they didnt come painted. Figured it would look better than the way it is up against my bright painted engine! Maybe the better question is, has anyone out there ever had problems because of painting theirs?


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1973 Plymouth Road Runner
Re: Painting Transmission [Re: 340SHORTY] #1639157
06/27/14 05:26 PM
06/27/14 05:26 PM
Joined: Jan 2003
Posts: 22,414
Rio Linda, CA
John_Kunkel Offline
Much ado about nothing
John_Kunkel  Offline
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Rio Linda, CA

Sealing the pores of the aluminum casting has the benefit of keeping grime from penetrating the pores...makes it easier to keep clean. I doubt if heat retention is an issue, radiators are painted.


Doing my best to irritate the herd.
Re: Painting Transmission [Re: John_Kunkel] #1639158
06/27/14 06:11 PM
06/27/14 06:11 PM
Joined: Oct 2005
Posts: 4,521
WI
Dcuda69 Offline
master
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WI
I worked in a trans shop for a few years. Every trans we did got painted with something very similar to this.

http://www.eastwood.com/ew-aluma-blast-set.html

Never once did we have one come back due to heat caused by painting the case

Re: Painting Transmission [Re: RoadRunner73] #1639159
06/28/14 03:53 AM
06/28/14 03:53 AM
Joined: Jul 2013
Posts: 1,272
Northern Calyfornua
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Sxrxrnr Offline
pro stock
Sxrxrnr  Offline
pro stock
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Northern Calyfornua
Same color as engine? Hope your engine is silver or aluminum.

Re: Painting Transmission [Re: 340SHORTY] #1639160
06/28/14 08:46 AM
06/28/14 08:46 AM
Joined: Nov 2010
Posts: 3,688
jersey
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Spaceman Spiff Offline
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jersey
Quote:

I personally wouldnt paint it after cleaning. Paint seals the aluminimum and will make the trans retain some heat. As we know, they wernt painted when new.




They weren't painted new due to time and COST.


526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
Re: Painting Transmission [Re: Spaceman Spiff] #1639161
06/28/14 01:50 PM
06/28/14 01:50 PM
Joined: Feb 2004
Posts: 7,171
Harrisburg, Pa.
screamindriver Offline
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Harrisburg, Pa.
I've never heard of anyone blaming paint for a trans problem...If it's already been primed then you should'nt have much to do other then scrub it with a mild cleaner and a scotchbrite pad for adhesion... Choose whatever color you like but use an engine paint for the long-term durability...Good Luck..

Re: Painting Transmission [Re: 340SHORTY] #1639162
06/29/14 11:56 AM
06/29/14 11:56 AM
Joined: Nov 2010
Posts: 3,688
jersey
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Spaceman Spiff Offline
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jersey
Quote:

I personally wouldnt paint it after cleaning. Paint seals the aluminimum and will make the trans retain some heat. As we know, they wernt painted when new.




Then why would places that sell performance transmission powder coat them?


526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
Re: Painting Transmission [Re: Spaceman Spiff] #1639163
06/29/14 02:33 PM
06/29/14 02:33 PM
Joined: Jan 2003
Posts: 22,414
Rio Linda, CA
John_Kunkel Offline
Much ado about nothing
John_Kunkel  Offline
Much ado about nothing

Joined: Jan 2003
Posts: 22,414
Rio Linda, CA

Pro shops coat the trans to cover up the stains in the aluminum that won't come out with normal cleaning...nobody wants to pay big bucks for an ugly transmission even if it's only cosmetic.


Doing my best to irritate the herd.
Re: Painting Transmission [Re: John_Kunkel] #1639164
06/30/14 02:14 PM
06/30/14 02:14 PM
Joined: Jan 2003
Posts: 16,375
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dogdays Offline
I Live Here
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Plus a shiny black transmission looks BOSS.

R.

Re: Painting Transmission [Re: Sxrxrnr] #1639165
06/30/14 06:12 PM
06/30/14 06:12 PM
Joined: Oct 2005
Posts: 173
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RoadRunner73 Offline OP
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I was going to use the same engine paint hemi orange on it, I KNOW, it won't look original.


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1973 Plymouth Road Runner
Re: Painting Transmission [Re: RoadRunner73] #1639166
07/01/14 01:24 PM
07/01/14 01:24 PM
Joined: Jan 2003
Posts: 16,375
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dogdays Offline
I Live Here
dogdays  Offline
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Joined: Jan 2003
Posts: 16,375
Good for you.
Dare to be different!

R.







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