The TSM for 1966 says that the idle speed is 550 rpm (in neut ral)for all model 6s in the American, regardless of tranny. Mine idles in neutral at 700 and drops to about 650 in drive. I am going to try the "Carbon breakup" water method first and then a compression check. My car is really rough idling, just not as smooth as I remember my 65 (back in 65) idling wiht the same engine.
Jay
----- Original Message ----- From: "Matt Haas" <mhaas@xxxxxxx>
To: <mail@xxxxxxxxxxxx>
Sent: Tuesday, April 12, 2005 8:28 PM
Subject: Re: cracked exhaust manifold on 232
Jay,
You usually set the curb idle speed on a car with an automatic while it's in drive. Did you have the intake manifold checked to make sure it's flat? Did you follow the torque sequence from the TSB information I posted (http://www.mattsoldcars.com/RestoreAmerican/loose_intake.shtml)? Also, I have a much better idle now with just the intake gasket than I did with using the combination gasket. Finally, did you try adjusting the fuel mixture? A lean or very rich mixture can cause the engine to run rough.
Matt
At 07:46 PM 4/12/2005 -0400, you wrote:Boy, I changed my maniufold yesterday on my American and the darn thing about fell apart when I unbolted it from the block. It had all kinds of cracks, some hair-line and some quite wide and long. Car sounds a lot quieter now but doesn;t idle any smoother.
When I set the idle in Park at a rather fast 700 rpm, when i put it in Drive and the engine slows down, it almost gets loping and rough. I can't seem to get a "compromise" setting that will be fairly smooth in Drive and still not jump into gear when I take it out of Park and put it in Drive. Any ideas what I might try with this situation?
Jay Laek Placid, FL.
mhaas@xxxxxxx Cincinnati, OH http://www.mattsoldcars.com 1967 Rambler American wagon 1968 Rambler American sedan =============================================================== According to a February survey of Internet holdouts released by UCLA's Center for Communication Policy, people cite not having a computer as the No. 1 reason they won't go online.