Coupe Express Posted May 28, 2021 Share Posted May 28, 2021 Does anyone know if the restricted orifice fitting goes in the inlet or exit, or does it matter. Thanks for your help, Mike Link to comment Share on other sites More sharing options...
Gary_Ash Posted May 28, 2021 Share Posted May 28, 2021 The restrictor is on the inlet side. That keeps the pressure down in the canister to prevent big leaks from the lid. The restrictor is 0.045” to 0.060” diameter. Flow at 30 psig indicated will be a quart or two per minute when hot. 2 Link to comment Share on other sites More sharing options...
edinmass Posted May 29, 2021 Share Posted May 29, 2021 On a Pierce, it’s a smaller orifice. But the engine that uses the bypass filter is earlier. Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted May 29, 2021 Share Posted May 29, 2021 Buick Straight Eight has the orifice fitting in the right front corner of the head. Filter outlet. Interesting that engineers saw things differently. .060 in size. Ben Link to comment Share on other sites More sharing options...
edinmass Posted May 29, 2021 Share Posted May 29, 2021 31 minutes ago, Ben Bruce aka First Born said: Buick Straight Eight has the orifice fitting in the right front corner of the head. Filter outlet. Interesting that engineers saw things differently. .060 in size. Ben They are ALL crazy.......... Link to comment Share on other sites More sharing options...
Coupe Express Posted May 29, 2021 Author Share Posted May 29, 2021 Thanks to everyone that replied. I was not sure and wanted to be sure to get it right. Mike 1 Link to comment Share on other sites More sharing options...
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