 DIY Ceramic coated combustion chambers, 2.0L (NOW with thermal dispersion coating) |
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| rfinegan |
 Sep 13 2025, 11:48 AM
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#1
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Senior Member  Group: Members Posts: 1,104 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region 
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Cerakote air cured piston coatings on the exhaust ports and combustion chambers.
Next will be piston tops and heads get heat dispersion coating too. Turned out pretty good one coat coverage  |
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| rfinegan |
Sep 13 2025, 11:49 AM
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#2
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Senior Member Group: Members Posts: 1,104 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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These heads were purchase here and included: welding of the ports and chambers seats and guides as well as around spark plug holed and one cert to a stopped plug hole
Prep included: Blast with 120 mesh aluminum oxide to combustion, chamber and valves Clean with acetone I did not gas as the oven was not use (air cured) Tape 1 coat of Cerakote piston coating to combustion chambers, valves, back of exhaust valves and exhaust ports Air cure 5 days |
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| Jack Standz |
Sep 13 2025, 02:46 PM
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#3
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Senior Member Group: Members Posts: 540 Joined: 15-November 19 From: Happy Place (& surrounding area) Member No.: 23,644 Region Association: None
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Excellent.
A couple questions if you don't mind. Why not bake the heads after the Ceracoat? How did you mask the sealing surfaces to keep the coating from messing up the seal? Thanks |
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| rfinegan |
Sep 13 2025, 03:07 PM
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#4
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Senior Member Group: Members Posts: 1,104 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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Yeah they offer oven cure and catalyst hardeners, this one is 5 day air cure. the end result should be the same?
The area on the head was blue taped, the vertical edged and the folded over then wider tape to cover the bottom of the head. I just use 4 of the head gaskets you get in rebuild kits and set one on each head. The added tape help them tight. A little clean up with acetone. I did the same with the exhaust ports and back of exhaust valve and use a old brass seal the same way as above t okeep the are free of coating QUOTE(Jack Standz @ Sep 13 2025, 04:46 PM)  Excellent. A couple questions if you don't mind. Why not bake the heads after the Ceracoat? How did you mask the sealing surfaces to keep the coating from messing up the seal? Thanks |
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| rfinegan |
Sep 13 2025, 03:08 PM
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#5
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Senior Member Group: Members Posts: 1,104 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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...you can see the exhaust seal in the pic to keep the surface free of coating
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| rfinegan |
Sep 13 2025, 04:37 PM
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#6
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Senior Member Group: Members Posts: 1,104 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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Oh, the ear plugs seal off holes very well that you do not want coating (or blasting)....see pic and spark plug holes
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| mate914 |
Sep 13 2025, 07:41 PM
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#7
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Matt Group: Members Posts: 893 Joined: 27-February 09 From: Eagles mere, PA Member No.: 10,102 Region Association: North East States
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Looks great. Can't wait to try..
Matt |
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| rfinegan |
Sep 14 2025, 04:44 PM
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#8
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Senior Member Group: Members Posts: 1,104 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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A little problems with the Passche air brush, but the thermal dispersion paint is done and drying.... This too is CeraKote...
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| rfinegan |
Sep 14 2025, 04:45 PM
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#9
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Senior Member Group: Members Posts: 1,104 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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another:
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| rfinegan |
Sep 14 2025, 06:07 PM
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#10
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Senior Member Group: Members Posts: 1,104 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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another:
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