Filler putty for aluminum intake? I've acquired a basic aluminum downdraft intake. There is a small divot in one of the mating surfaces that I would like to fill. If this were cast iron, I'd use JB Weld ExtremeHeat, but since it's aluminum I'm unsure what to use. Can anyone recommend a product that's both suitable for the purpose and inexpensive (since I'll probably only need it once or twice)? I'm thinking some kind of metallic paste or epoxy.
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Re: Filler putty for aluminum intake? Alexiskai - silly question, I know, but have you considered having the divot filled with weld material, then having the mating surface decked? A good machine shop should be able to do both in-house. With aluminum decking is a good practice against leaks anyhow. True, it will be more expensive than filling with something, but that way you'll know it's done right and is permanent.
JayJay |
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JayJay |
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Re: Filler putty for aluminum intake? looking for something else and stumbled on this product.
https://www.2daydeliver.com/product_...cts%20MAIN%202 |
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Re: Filler putty for aluminum intake? We used lab-metal to correct problems with defects when things were powder coated parts are heated to 375.
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Used this stuff frequently. As long as it’s clean, it will stick and doesn’t seem to be affected by engine heat.
It sets hard and you can drill, mill, file, etc. |
Re: Filler putty for aluminum intake? Automotive RTV compounds, like permatex ultra will withstand the heat and fill the void, provided the void is captured.
Keeping the original exhaust manifold is a good idea, you need the heat transfer to prevent icing. |
Re: Filler putty for aluminum intake? I wrote to JB Weld and they recommended using the original epoxy, which is good up to 550°. So I think I'm gonna go that direction since I already have that.
I'm planning to use an original manifold, but this intake doesn't have the transfer plate, so it'll have to be via convection and radiation instead. |
Re: Filler putty for aluminum intake? why switch, when you already have a good product?
I used JB in a heater that had indirect flame, but got quite hot nonetheless. that and a quarter repaired the jet. |
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Re: Filler putty for aluminum intake? Used to use Devcon F in the aviation maintenance industry.
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Re: Filler putty for aluminum intake? I'd try a small dab of silicone on that divot. Vacuum will hold it in place if vacuum reaches it, it is flexible and withstands temperatures way in excess of what you will get on an inlet manifold. Heck, I've seen no manifold gaskets at all (exhaust included) on a Model A, just silicone and the car ran like a champ.
Don't over think it. |
Re: Filler putty for aluminum intake? There is enough support to just to run a gasket.
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