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E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999


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Old Wed, Aug-17-2011, 02:23:25 AM   #1
Quail328
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Default water in spark plug tube

Was replacing my valve cover gasket over the course of a few nights along with new vanos line and new drive belts.

Today I opened the hood, rained pretty hard during the day, and though I had the ignition coils and plug boots down on the plugs, I could see the top of the engine was wet. I had never put the plastic covers on the night before. I took the ignition coils out and the two closest to the firewall were filled with water.

I mopped it out with paper towels, and then blew them dry with an air compressor.

When I started the car, it fired right up but had a terrible tapping sound. Sounded more like it was coming from the front, near the vanos unit.

Could I have done something to the vanos solenoid? All I did was replace the hose

Also, could I have affected the timing fighting with the water pump pulley trying to get the fan off to do the belts?

Or is the tapping a symptom of the water from the rain? Will this go away once it dries?
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Old Wed, Aug-17-2011, 02:45:06 AM   #2
hencini
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Default Re: water in spark plug tube

If your hood was closed the entire time, no water should have entered your engine bay. Or were you driving it around with the covers off?
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Old Wed, Aug-17-2011, 03:03:23 AM   #3
Quail328
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Default Re: water in spark plug tube

The engine was closed and it was sitting. I had no belt on the car so I couldn't drive it. I will trouble shoot the water leak after I trouble shoot the tapping sound..
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Old Wed, Aug-17-2011, 05:24:30 AM   #4
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Default Re: water in spark plug tube

Just remembered-- you probably have a coupe, don't you? I guess it's possible that the hood vents let water in...

Once again, advantage sedan...

As for the ticking, did you double check that everything was back together correctly? All hoses, electrical connections, etc.?
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Old Wed, Aug-17-2011, 01:15:41 PM   #5
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Default Re: water in spark plug tube

Was your valve cover off or even not fully sealed when everything got wet? I'd guess water in the oil.

Messing with the water pump pulley can't change the timing, that's not the issue.
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Old Wed, Aug-17-2011, 02:35:08 PM   #6
camdinans3
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Default Re: water in spark plug tube

if there is ticking, its probably a low oil situation. are you positive you repalced the vanos line correctly?
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Discussing water in spark plug tube in the E36 M3 (1992-1999) Forum - {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm}
Total Produced: 71,212 - Years Produced: 1992 to 1999 at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)