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American Motors/what is the tube coming off my valve cover for

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Expert: Kevin Pilotte - 1/20/2010


Question
hay Kevin thanks for the wire diagram. Everything worked out great. So my question for you this time is this, I want to change out my old valve covers for a set of crome ones. but all the covers that i can find for a 304 dont have have a small I guess it would be a breather port comming out of the driver side valve. that has a tube connected to it. do I need that, what do i have to do to get around it, do they make a set of valve covers with it, or do i have to modify a new set to fit that app, thanks again for all your help

Answer
You are correct. The hole in the valve cover is for a crankcase breather. It must be there to allow fresh air to be drawn into the crankcase so the PCV system works properly. There are after market valve covers that include the breather.
If you just drill a hole in an exsisting cover, oil would splash up into the tube or breather. It needs a baffle on the inside to prevent this from occuring.

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Kevin Pilotte

Expertise

I can answer many technical questions relating to AMC vehicles prior to 1979. I also have experience with Rambler & Nash vehicles.

Experience

I am a former AMC technician, service writer and service manager. I have worked in AMC dealers in Illinois in the 70's. After college, I was a Field Service Rep for American Motors Sales Corporation, working out of the Chicago Zone office. I traveled to AMC dealers assisting in the diagnosis and repair of AMC vehicles. I was also the Area Training Manager for DeLorean Motor Company. I have 10+ years as an Automotive Instructor. I have modified and restored
numerous AMC vehicles. I have been working on AMC vehicles for over 30 years.

Organizations
I have been an ASE Certified Master Technician since 1975. This includes L1. I am also currently a Toyota Certified Master Diagnostic Technician.

Publications
I have articles in "American Motoring", the official publication of the American Motors Owners Association. They are the largest AMC club in the world.

Education/Credentials
I have a certificate I printed out from a website.

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