|
As Danny said, it sounds like a vacuum leak. But I
would also recommend attaching a vacuum gauge to the intake and starting the
car. The vacuum gauge is a great tool for diagnosing engine problems. It's like
giving your engine a 'check up'. I also use one to time my engine.
There is lots of great information about this on
YouTube, or just by doing a google search.
Ron From: chrysler-300-club-international@xxxxxxxxxxxxxxxx [mailto:chrysler-300-club-international@xxxxxxxxxxxxxxxx] On Behalf Of Dan Plotkin Sent: Tuesday, February 21, 2023 11:56 AM To: 'James Douglas' Cc: chrysler-300-club-international@xxxxxxxxxxxxxxxx Subject: RE: {Chrysler 300} A Thanks to everyone. James- Avoid firing a parts cannon at the car. Otherwise you may
never know what was wrong or what fixed it. If you know all 8 plugs are firing
use an IR temperature gun on the exhaust at each cylinder, see if you can find
the cool one. Most rough idle are vacuum leak or leaks. You might go around the
carb base and intake with an unlit but open bottle of propane or brake cleaner
listening for a change. Vacuum leaks. I hate ‘em. Danny Plotkin From: 'James Douglas' via Chrysler 300 Club
International [mailto:chrysler-300-club-international@xxxxxxxxxxxxxxxx]
Hi All, I wanted to take a moment and thank everyone for all the help
over the last few months. We drive the 1964 300K down from our little house in
Winters, CA (which has the garage with a lift) down to our San Francisco
residence. The car ran fine. The only real issue is the PO put on an exhaust
system that is so loud it is annoying. I need to either order a new system or
find a good shop in Northern California that can-do first-class
work. The one important outstanding problem is that at idle the
engine is rough. At first, I thought it was the carburetor. I swapped that out
for newish Edelbrock and it did not change. I swapped out the Prestolite for a
later orange box dizzy and it did not change. I put new wires on it and it did
not change. Running out of ideas. One thought I have is that I am using NGK plugs that are on
the cold side (#7). I am going to swap in some #5 plugs which are hotter and see
what I get. Again, thanks all and over the next week we shall see if I
can get it to settle down for city driving. On the freeway it hummed along. This
will be the first week in 22 years that we have not relied on the 1947 Desoto.
Best, James -- For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang --- You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/000201d94615%246f8ab880%244ea02980%24%40northeastretail.com. -- For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang --- You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/D7F14F008DE7434E9B1004075D33D1D9%40ThinkPadL520. |
Back to the Home of the Forward Look Network
Archive Sitemap