From: "Mark Martin" <1966.newport@xxxxxxxxxxx>
Reply-To: mailing-list@xxxxxxxxxxxxxxxx
To: <mailing-list@xxxxxxxxxxxxxxxx>
Subject: Re: IML: engine problems
Date: Mon, 19 Sep 2005 13:34:31 -0700
Sounds like a lot of things to me, but more than likely the timing is just
off
How are you setting the timing? Don't go by the notches on the crank
pully.... stick a screw driver in plug hole #1 and find TDC that way (ask
if you need more info on that one ;) then make a new mark on your pully....
I had the same problem with the 273 in my valiant...
----- Original Message ----- From: "Pete Engel" <peter.engel@xxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Monday, September 19, 2005 10:41 AM
Subject: RE: IML: engine problems
Jay,
Others have made some very good suggestions about the possible source of
your engine troubles. As someone said, the actual point gap is irrelevant
so long as dwell is correct. But the gap/dwell mismatch may indicate worn
distributor parts. I myself have experienced a stuck centrifugal advance
and it totally took the power away from a brand C engine.
One thing to consider is the camshaft. Do you know exactly what grind was
installed? This can be a big problem if a modern grind "emission" cam is
installed since overlap is usually way too much. A friend experience
"gutless wonder" performance from a purchased long block years ago and went
nuts trying to determine the cause. The problem turned out to be the cam
grind.
HTH,
Pete in PA
From: "JAY D'ANGELO" <cadij@xxxxxxxxxxx>
Subject: IML: Engine problems
Date: Sat, 17 Sep 2005 05:46:04 +0000
Reply-To: mailing-list@xxxxxxxxxxxxxxxx
Just put a brand new long block 413 in my 64 Imp Convt., but it doesn't
idle
properly and is very sluggish off the line. We did a new PS unit, water
pump, radiator, master brake cylinder, coil, points, condenser, cap, wires,
plugs and an Edelbrock 1406.
We set the plug gap at 35, points at 16 and the dwell dropped to 21. I
hooked up the vacuum advance hose to the driver side port on the carb and
wired the electric choke thru the whatumacacallit on the firewall.
we set the timing to 10 and got it to idle smooth, then it would get rough
in gear, like it had a vacuum leak. Then we were able to get it falrly
smooth by readjusting the distributor and it roared in park. In gear, it's
smooth but slow off the line and pings.
My mechanic is tearing his hair out and I'm not too happy, either.
Any suggestions on this one?
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