I have to imagine that an idle above 1000rpm generates to much friction
based on too little air flow (lack of movement at idle) and not enough crank
movement to stir the oil. I think Bob's point was that too many people try
to get a 650-750 idle (which could cause additional wear) vs. a better
balanced 850-900.
-----Original Message-----
From: Peter Macholdt [mailto:vze2846b@verizon.net]
Sent: Thursday, May 29, 2003 2:03 PM
To: 6pack list
Subject: Idle speed
Just got back from a cruise in the 250. While sitting at a red light, I got
to thinking about something that Bob Lang wrote the other day. It concerned
a low idle speed (don't remember the exact words).
Anyway, I'm sitting at the light and my car is idling smoothly at about
700RPM. Now, I'm thinking about the cam being starved for oil and about all
the damage that can ensue. I still enjoyed the ride, but for peace of mind
I'd like to know the consensus concerning proper idle speed.
Is 700 OK, how about 1000, or 1200? Is it ridiculous to go up to 1500?
I've got all of the manuals and know that I should be at 800-850. I just
wonder about premature cam wear and the positive effect of increased RPMs.
Peter
'68 TR250
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