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BMW E23 7 Series 1978-1987 (730i, 733i, 735i, 745i, L7) 86 BMW 735I- Help


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Last Post: Aug 31, 2010 2:31 AM Last Post By: FKH161
JR7464

Posts: 3
Registered: 07/20/10
86 BMW 735I- Help
Posted: Aug 28, 2010 3:36 PM
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I have posted several messages but no replies. I am asking the group for help. I just did a tune up replacing plugs, wires, caps and rotors. While it is running a little better, one problem I still have is that when I started the the car it idles rough until it is completely warmed up. Also, shouldn't the RPM be a bit higher when it is cold. It idles low and runs rough when it is cold.
FKH161

Posts: 7,610
Registered: 12/29/05
Re: 86 BMW 735I- Help
Posted: Aug 31, 2010 2:31 AM   in response to: JR7464 in response to: JR7464
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Have you checked for vacuum leaks?

Spraying carb clean around the engine while it is running can show leaks by way of idle increase (the carb clean is sucked-in where the leak is and the engine rpm's increase).

I don't like using carb clean as it is flammable.

I prefer a smoke machine:

http://www.youtube.com/watch?v=-V_W_SFxYoI

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