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Joined: Jun 2013
Posts: 2
Grease Monkey
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Grease Monkey
Joined: Jun 2013
Posts: 2 |
What does everyone do to prevent rust on parts that are unpainted? Im thinking about cast iron master cylinders, transmission cases and nuts and bolts specifically.
Do you clear coat them, oil constantly, or let them rust?
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
There are various conversion coatings that can be used. Most of them are use phosphoric acid in some form to give a protective surface. Then there are the oily coatings like LPS 3. Finally there are the primers and paints.
How Sweet the roar of a Chevy four!
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Joined: Jun 2013
Posts: 2
Grease Monkey
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OP
Grease Monkey
Joined: Jun 2013
Posts: 2 |
But how is the new looking, shiny cast iron look achieved? My plan is to wire wheel the transmission case, but it will not look new for long.
What is usually done for a correct restoration to keep the unpainted parts from rusting?
It seems like oiling every nut, bolt head and part would be too much maintenance and the oil would trap dirt.
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Joined: Feb 2011
Posts: 3,136
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Feb 2011
Posts: 3,136 |
As I have suggested in the past, the Eastwood Company sells a coating for exhaust manifolds that claims to keep them looking new...Should remove the scale but may be applied over light rust...usually done with the manifold still on the car...only $20 bucks a can...Check 'em out...Supposed to give the appearance of a freshly sand blasted surface...and stay that way to 1600 degrees...
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
Many of the early transmission cases were painted with a utility grade black enamel.
How Sweet the roar of a Chevy four!
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Joined: Jun 2013
Posts: 2
Grease Monkey
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OP
Grease Monkey
Joined: Jun 2013
Posts: 2 |
If my transmission were painted that would be helpful, but I see no evidence of paint anywhere on it...just an inch of dirt and gear oil. Its a muncie SM420 4speed on a 59 apache 36 if that helps.
do you all paint your transmission cases? What have you done with your bare metal parts on your restorations?
That calyx looks promising for exhaust.
Im thinking ill try some more clear paint until I find some better method.
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
Never had good long term luck with clear coating ferrous metals.
How Sweet the roar of a Chevy four!
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Joined: Nov 2001
Posts: 5,906 Likes: 8
Former ChatMaster ChatMaster - 5,000
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Former ChatMaster ChatMaster - 5,000
Joined: Nov 2001
Posts: 5,906 Likes: 8 |
Yeh, I have to agree.. I've tried clear for a lot of years before I finally gave up on it.
Now I use Eastwood's paint to match the metal color.
If it's flat black, then I use spray-on Bar-B-Que paint.... that is rated for very high temps and it lasts a long time.
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