RE: [Chrysler300] 1961 Cross Ram Manifold For Sale

["'John Grady' jkg@xxxxxxxxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>]

Note corrosion at one choke well in the picture. ...When you see that, they
might have a hole in the heat plenum under carb. The first F I ever had , my
first 300, had that problem, drove me  crazy for a year. Could not get it to
idle right , erratic. Why the ram AFB idle mixture screws are often
wrecked...Cause of the poor running was exhaust gas was leaking into intake
side , due to corrosion , possibly melting the floor and area near the choke
well and under carb , separating intake plenum from exhaust heat area**
..This was in turn caused by a stuck heat riser valve ; they stick when
parked a long time cold , they rust in place shut. If you drive hard, a jet
of very hot exhaust hits that area like a blow torch. 

One thing I learned early on, was that ram manifold cars make a distinctive
rattle as they warm up , when that spring loaded heat riser valve is working
right. (back then,  ears worked too) . I remember that rattle on a friend's
brand  new 61 Plymouth 383 stick wagon,  (what is that rattling??--we both
are searching under hood of brand new car ?) and also on Mass Pike 413 ram
cop cars (might have been right behind me at the side of road--for some
reason....!) . later I disabled that valve ,  tied it open or removed
butterfly (looks stock) , as we do not drive our cars in zero weather.
Enough will still go through , to make chokes work but slower . George
reduced it even more with a 1/4 hole in a disc at heat elbows. 

**On that one I fixed it with epoxy, poured it in from one side, tape on
other  ---not sure if that was wise, (temp rating?) but it did fix it , and
I left heat riser open. 

FYI, picture reminded me of this..

John g 

-----Original Message-----
From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of 'czbill@xxxxxxxxxx' czbill@xxxxxxxxxx [Chrysler300]
Sent: Tuesday, April 24, 2018 11:14 AM
To: Chrysler300@xxxxxxxxxxxxxxx
Subject: [Chrysler300] 1961 Cross Ram Manifold For Sale


not mine.

https://tippecanoe.craigslist.org/pts/d/1961-cross-ram-intake-mopar/65612798
82.html


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Posted by: "czbill@xxxxxxxxxx" <czbill@xxxxxxxxxx>
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Posted by: "John Grady" <jkg@xxxxxxxxxxxxxxxxx>
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