Black soot in my exhaust |
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Black soot in my exhaust |
terrymason |
Feb 6 2007, 04:20 PM
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#1
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Member Group: Members Posts: 346 Joined: 23-November 05 From: Virginia Beach Member No.: 5,174 |
I fired up my 914, and let it idle in the drive way for a while, and noticed that small dots of black stuff (looks like oil splatter) seem to come out and stain the concrete. These aren't liquid at all, but are a black powdery soot.
Is it normal to have these black soot marks? Do you think this is because my car has sat for some time? |
rhodyguy |
May 11 2007, 08:24 AM
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#2
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,188 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
after the baseline setting are made, and you ensure that both carbs are flowing the same (droplink adj), the 4 idle/air mixture needle screws are not ness going to be set at the exactly the same # of turns in or out after that stage of the tuning. each one will be set for the best running of the engine. as you turn each one in to fully seated you'll hear an idle stumble and perhaps a slight black fire. you'll know when you hear it. slowly turn the i/a screws out, one at a time, for a smooth idle. the 50s are a better starting point for your engine. there should be little o-rings under the caps on the i/a screws. check their condition for cracks and deterioration if you sem to have one cyl that is unresponsive.
k |
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