Re: [Amc-list] 195.6 OHV head bolt dimensions

[Frank Swygert <farna@xxxxxxx>]

The parts book lists 5 x 3-9/32", 6 x 5-7/16", 2 x 4-17/32", and 2 x 5-3/4" -- all 7/16" coarse threads. I would assume the 5-3/4" are the stud head bolts, there's no description for each bolt other than number and length. The 4-17/32" bolts should go on the ends under the valve cover. 

I wouldn't worry about the 32nd and 16th increments. The holes should be tapped enough to take a bit longer bolt. I'd go a little longer rather than shorter, but a 16th short shouldn't make much difference. 

5 x 3-1/4", 6 x 5-1/2", 2 x 4-1/2", 2 x 5-3/4" should do it. The stud head bolts will be hard to find. I suggest using a standard 5-3/4" bolt at the back of the head and a 6-3/4" stud at the front (both on the intake side). 

You only need the stud head bolt on the front. Using a stud would solve that problem. The oil filter base mounts on that stud. You could use a large nut as a spacer and torque a 6-1/4" bolt down on top of the oil filter base, I just don't particularly like that idea. When the engine is cold it's okay to loosen one head bolt though, so removing the oil filter base if necessary later isn't a big deal. If you take the entire intake plate off all the head bolts should be loosened and retorqued though. 

-----------
Date: Tue, 1 Apr 2008 12:23:15 -0700 (PDT)
From: Tom Jennings <tomj@xxxxxxx>

I looked at the 195.6OHV head on my way out the door this AM.

5 short bolts
4 medium bolts (two are stud-heads)
6 long bolts


SHORT are under the valve cover on the distributor side.

MEDIUM and LONG are all the others; the only difference is
the aluminum intake valley cover is about .5" high and the LONG
bolts go there. The four MEDIUMS are on the ends where the valley
cover isn't. Chances are the LONG bolts would work over there --
easily checked (drop one in the hole without a washer and see
if it bottoms).

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

_______________________________________________
Amc-list mailing list
Amc-list@xxxxxxxxxxxx
http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list