Re: [Amc-list] 195.6 OHV Oil Return Line - just use a pre-cut brake line?

[Frank Swygert <farna@xxxxxxx>]

Like Tom said, plain old brake line. I do want to point out one important thing though -- that's NOT an oil RETURN line, it's the oil FEED line to the rocker shaft! 

There are two set-ups on the 196 OHV. Early (pre 63) has one line that goes from the main oil galley (that lump down the right side of the engine) to a T in the head, then continues from that T to the filter. A line then goes from the filter base to the left side of the block -- that's the return line, it just dimps in the poil pan. 

63 and later (there may be some overlap -- early 63s may have the older system) uses two lines. The line tapped directly into the galley just goes to the oil filter. Another line taps into the side of the block just above the oil filter line in the galley and feeds the rocker shaft. This one feeds off the front cam bearing. The cam has a slot in it to limit the amount of oil going to the rocker shaft, which prevents filling the head with oil during high speed cruising. The interstate system started in 59, and by 63 there was apparently enough long stretches of road that AMC engineers felt that too much oil in the head was a problem... or they had enough warranty calls/dealer complaints that it warranted fixing. Previously speeds were low enough oil drain back from the head shouldn't have been a problem. 

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Date: Mon, 22 Sep 2008 19:44:26 -0400
From: "Bruce Griffis" <bruce.griffis@xxxxxxxxx>

Okay, we put in a lot of work on the 195.6 OHV this weekend and today.
Just have to do some fiddly bits. The oil return line that goes
outside the engine and runs from the block to the head is broken. It
looks like just plain old brake line. Do I just need to pick up some
brake line? Or do the fittings have a different thread pitch?

-- 
Frank Swygert
Publisher, "American Motors Cars" 
Magazine (AMC)
For all AMC enthusiasts
http://farna.home.att.net/AMC.html
(free download available!)

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