#1
IP: 174.216.24.117
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Did you know these old A4s run fine on 2 cylinders?
Well ... not quite "fine", a little rough, but still ...
I just finished the rebuild of my A4, and I've been running it up to temp a few times for the break in oil. Sounded slightly rough to me, but hard to tell unmuffled and with no load, so I assumed it was running fine. Then last night, just for kicks, I pulled one plug wire at a time. Pulled #1 wire, no change! I thought "that's odd! You'd think it would run rougher on 3 cylinders. Plugged # 1 back in and repeated with plugs 2, 3 & 4. Each of those resulted in pronounced running roughness. Went back to #1, no change again! After bit of troubleshooting I found out the #1 plug was bad. Replaced it and now it's running quite smoothly. Anyway, I just found it interesting that these old beasts run rough but fine on 2 cylinders. Good to know if I'm ever out "there" and lose a cylinder or 2 for any reason.
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#2
IP: 72.194.220.204
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An A4 will also start on two cylinders. Try putting the spark plug wires on the spark plugs in an incorrect firing order then try starting the engine............
TRUE GRIT |
#3
IP: 137.200.32.6
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Well known low power issue. Swap the "right" two plug wires and you get a relatively smooth 50% power engine.
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#4
IP: 72.69.36.126
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No, don't do that. A backfire in a sailboat engine space is an entirely scary event. DAMHIKT.
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#5
IP: 24.18.220.104
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Accidentally left the #3 & 4 plug wires off and started. It started but I knew immediately what I had done with it running rough and immediately shut it down. Quite amazing actually!
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Scott |
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