It might be starting to advance if idle is too high. Which raises idle some more. The springs and weights take off the rest location at certain engineered rpm, so idle must be chrysler spec . And parts not worn . That spec varies with different engine setups / distributors. If you raise idle , it can get into an erratic unstable area ?
Sent from my iPhone
Thanks Gary, as I said in one of my responses, I did have it rebuilt by the Philbin Group and it looked to be a comprehensive job. It makes it hard for me to think it’s a dis problem for that reason, but it is on my list to validate by substituing another distributor. As someone else said, the fact that the RPM “hunts” between 600 and 700 rpm
engine speed makes the distributor suspect.
Thanks, MIke Moore
I highly recommend any old distributor with unknown history, MUST be
rebuilt and setup on a dist. machine. I highly recommend the Philbin Group in
Portland OR, 1-800-869-7301, talk to Mark. If I remember correctly, The charge
for basic rebuild was $75. Also, they can rebuild or replace vacuum
advance. I installed and recommend electronic ignition.
Note: with electronic ignition you must pay special attention to the
voltage out put at the resistor. To high and you will fry the electronic
component. I may mention Philbin is fast and courteous. I am sure there
are many qualified to do rebuilds. Any of them are UPS away.
AKA, The Parts Doc
Sent: Saturday, October 24, 2015 10:10 AM
Subject: Re: [Chrysler300] Chrysler 300H idle
A "hunting" condition at any idle speed can be caused by a defect in the
centrifugal spark advance mechanism in the distributor, usually a weak
(stretched) or broken spring. Don't overlook that as a possibility
after checking more obvious things that are easier to get to.
---------- Original Message ----------
From: "Michael Moore
To: Ron Waters
[Chrysler300] Chrysler 300H idle speed
Date: Sat, 24 Oct 2015 10:04:51
Yes, it idles especially rough the lower it goes. It also seems to â€śhuntâ€ť
between 500 and 600.
I discovered a couple of vacuum leaks yesterday and thought I had fixed
them by removing the base gaskets from the carburetors, cleaning them, and
forming a very small (cross section-like a pencil lid) of form-a -gasket
on all 8 surface and reassembled them. Itâ€™s hard to believe I still have
a vacuum leak but certainly possible. There was also an old smog kit tap into
the intake manifold I resealed.
Thanks, MIke Moore 300H
Not sure what you mean by 'marginal'. Does
the car run rough and act like it's gonna stall ? If so, I would attach a vacuum
gauge to the intake and see what's going on. Problem is either a vacuum leak, or
something is out of whack in your carbs. It's not Ethanol gas.
----- Original Message -----
Sent: Saturday, October 24,
2015 12:30 PM
Subject: [Chrysler300] Chrysler
300H idle speed
What idle speed are the 300H folks setting? Although my manual says 650,
it sure is marginal at that speed. 800 feels better, but I donâ€™t understand
what causes the difference. Ethanol?
Does anyone have tips on replacing a windshield on a 61
Chrysler. Lots of chrome to remove.
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