Another DIY Heat Shield (1 Viewer)

[Steamer]

Not sure if it’s needed but I thought I’d make up a heat shield for the new Sniper. Materials are 2” x 2” x 1/8” alum angle, 0.090” aluminum sheet, some 1/4”-20 stainless stove bolts and some stick on high temp insulation. Goes on and off easily with two bolts onto the intake manifold. If I find some better/thicker insulation I may add it onto the other. Seems to work fine so I guess it’s a keeper.

 

[JohnnyC]

I like the simplicity of it... nice job !

I would take off that red valve cover breather and plumb the valve cover port to a bung under the air cleaner housing. That messes with the pcv system having it like that ... and ... you’ll get more condensation than usual in the valve cover.

Air cleaner draws from under the hat correct?

Is there a place to add one? Does the air cleaner housing have a provision anywhere for one?

 

[Steamer]

I like the simplicity of it... nice job !

I would take off that red valve cover breather and plumb the valve cover port to a bung under the air cleaner housing. That messes with the pcv system having it like that ... and ... you’ll get more condensation than usual in the valve cover.

Air cleaner draws from under the hat correct?

Is there a place to add one? Does the air cleaner housing have a provision anywhere for one?

Thanks. I'm a big fan of simplicity.
Yes there is a knock out & screw holes for a fitting on the bottom of the air cleaner. I know the setup I have isn't correct and I admit I've always been puzzled by the pcv system and exactly how it works. Especially with an older engine that may be a little heavy on the blow by. Forever, when I would remove a carb, I found myself swabbing out an oily, sooty film on the bottom of the intake manifold. Also the hose going from valve cover to air cleaner was oily/sooty. And so was the hose from the PCV valve.
So, 3 years ago I added a catch can after the PCV valve and went to the simple push on filter on the valve cover. I would check the catch can every few months but never found anything. Then I ignored it for about two years and a few months ago checked it again and found roughly 1 oz of oil that other wise would have been sucked into the engine. When I pulled the manifolds recently the intake was very dry and clean. I also pulled the valve cover for painting and found the inside of it had a slight film of clean oil and no signs of moisture. And I'm always wheeling in the very humid Everglades. I have no odometer so I just change the oil once a year but I'm always draining rather clean oil. I guess I could have it tested sometime.
So I know it's not properly plumbed but I'm pleased with the results so I'll probably stay with it. For now anyway. Someday I'd like to put a manometer on the valve cover outlet and see if the vacuum pulling through the PCV is keeping up with the blow by. Or in other words, does air go in or out of the valve cover fitting?

 

[Steamer]

I use the bottom of a cheapy universal air cleaner. The top is a 10" aluminum cake pan. Works well and gets laughs.

I wasn't impressed with the first two catch cans I got and gave them away without installing. I was impressed with this one from Elite Engineering.

 

[Living in the Past]

I like the simplicity of it... nice job !

I would take off that red valve cover breather and plumb the valve cover port to a bung under the air cleaner housing. That messes with the pcv system having it like that ... and ... you’ll get more condensation than usual in the valve cover.

Air cleaner draws from under the hat correct?

Is there a place to add one? Does the air cleaner housing have a provision anywhere for one?

Well look who is back. You know we miss you knowledge when your gone.

 

[JohnnyC]

I would not have even guessed cake pan... that’s awesome

If you throw a few toyota air cleaner stickers on it the unknowing will have no clue lol

If your getting blow by then yes that’s the way to go especially if your not a DDing it... when my engine was ‘blow by king’ I ran that valve cover line down the back and exited under the truck ... essentially a draft tube... you could see puffs of smoke from that hose as I drove ... friends would comment here comes Johnny’s train

Well look who is back. You know we miss you knowledge when your gone.

My knowledge comes from years of making mistakes lol

(And gleaning info from LCML and mud )

 

[Steamer]

I should of mentioned that the manifold shown here on my 74 F.5is is from a 69 F.
Just like the one in this pic taken from "Mikesta's" post (#48) in the FAQ's/Engine Info/Intake Manifolds.