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[GMCnet] Oil Separator [message #364921]

Wed, 23 June 2021 08:36

Ray Erspamer

Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin

Karma: -3

Senior Member

A friend of mine that has a Ford F150 installed an Oil Separator in his PVC line. It keeps any mists/fluids from returning to the carburetor or EFI intake.Would there be any benefit to having one on our GMC's?RaySent from my U.S.Cellular© Smartphone
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Ray Erspamer 78 GMC Royale Center Kitchen 403, 3.70 Final Drive Holley Sniper Quadrajet EFI System, Holley Hyperspark Ignition System 414-484-9431

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Re: [GMCnet] Oil Separator [message #364937 is a reply to message #364921]

Wed, 23 June 2021 17:05

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma: 7

Senior Member

Ray Erspamer wrote on Wed, 23 June 2021 09:36

A friend of mine that has a Ford F150 installed an Oil Separator in his PVC line. It keeps any mists/fluids from returning to the carburetor or EFI intake.Would there be any benefit to having one on our GMC's?
Ray

Ray,

Those only make any sense in a case of serve blow-by and actually, if you have the TZE valve gear covers, the feature is built in to them.

This is just one of the reasons that people have trouble with some rebuild shop engines.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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Re: [GMCnet] Oil Separator [message #364940 is a reply to message #364921]

Wed, 23 June 2021 20:48

JohnL455

Messages: 4447
Registered: October 2006
Location: Woodstock, IL

Karma: 12

Senior Member

We have one in the left valve cover.
GM 557240 breather filter. There is a big difference between the real GM ones and the Cheapies as the GM is full of media and fakes have only a thin fiber sheet.

John Lebetski
Woodstock, IL
77 Eleganza II

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