2.0 Crank & Head Venting Issues |
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2.0 Crank & Head Venting Issues |
tjtryon |
Oct 17 2016, 03:56 PM
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#1
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Newbie Group: Members Posts: 20 Joined: 15-June 16 From: Indianapolis Member No.: 20,112 Region Association: None |
Car: 1973 2.0 with dual Webbers
Issue: I have a leak from the drivers side valve cover, and poking around, I know my crank & head venting is not correct, which may be what's causing issues. I wanted to fix this first, before I change the valve cover gasket. I have what I believe is the CB breather box already on the car. It has a hose connected to the oil filler area, one to the fan shroud, and one that is venting to atmosphere. I have a hose port at the base of the carb intake manifold on both sides, that does seem to vent air out. I assume these are the head or valve cover vents, but am not sure. Additionally, nothing in the system seems to pull vaccuum, unless the fan shroud vent does so. I have 3 main questions: What are the hose ports at the base of the carb intakes (front of intake on drivers side, rear of intake on passengers side)? What's the correct routing of the hoses? Where does the system pull a vaccuum? Many thanks in advance! |
HAM Inc |
Oct 21 2016, 06:48 PM
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#2
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Senior Member Group: Members Posts: 846 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None |
I've never been one to tell someone to stop doing something that's working for them. If it works and you're happy with the arrangement, rock on.
But if you ever notice low oil pressure in corners during track time or spirited driving try pluggin the hoses from the heads and cap their inlets to the breather can and see if it helps. It usually does. Easy enough to try and easy enough to undo. BTW, while I recommend to all of my customers to not run head vents, I still go through the trouble to machine pipe threads in my new heads for folks that prefer that system. To each their own. Happy motoring (IMG:style_emoticons/default/beer.gif) |
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