[Public-List] A-4 White Smoke
John Birch
Sunstone at cogeco.ca
Sun May 9 02:13:08 PDT 2010
Would not running the engine for a bit and then checking the oil (after
turning it off of course) reveal whether water was getting into the cyl. ?
If the oil is foamy, water is present.
40 year old engines would most likely let some water leak past the rings and
into the crank case if the head or head gasket was compromised me thinks.
The exhaust stack somehow leaking is a possibility, however it sounds like
the boat was put to bed fine for the winter and now is doing this smoke
thing. That is different than it developing over the season. I keep
wondering if a water pocket did not get enough AF during layup. That bypass
on the thermostat thing perhaps or perhaps some water stayed in the exhaust
sack - the whole thing is a solder together.
Really hard to diagnose over email.
Gord is pretty good with this stuff, he just would rather do rigging than
turn greasy engine bolts - I can certainly understand that ....
Best of luck anyway
John
----- Original Message -----
From: <crufone at comcast.net>
To: "Alberg, Public List" <public-list at alberg30.org>
Sent: Saturday, May 08, 2010 10:06 PM
Subject: [Public-List] A-4 White Smoke
>
>
> Gord,
>
> I am wondering if there is any other way that excessive water can get into
> the exhaust. What about the exhaust manifold heat exchanger? I wonder if
> it would be worth while to do a differential compression test and see or
> hear if there might be leaks via the water jacket prior to removing the
> head? What about removing the spark plugs to see what they look like? Use
> a flashlight to peer into the cylinders. Water will show up as beads
> separated from the oil. Then pull the HT lead from the coil and turn the
> engine over with the starter and have someone observe what if anything
> comes out of the spark plug holes.
>
> Contact the A-4 guru at Van Ness and ask about the possible causes and
> their probability. Do a bit more head scratching prior to exploratory
> surgery, my two cents.
>
> Michael #133, Whoops............. Gray Marine Power but basically the
> same.
> ----- Original Message -----
> From: "Gordon Laco" < mainstay at csolve.net >
> To: "Alberg 30 Public List -- open to all" <
> public-list at lists.alberg30.org >
> Sent: Saturday, May 8, 2010 9:03:33 AM GMT -05:00 US/Canada Eastern
> Subject: Re: [Public-List] White smoke - valves cyl heads rebuilding and
> what nots
>
> Thanks everybody - I'll let you know how this goes.
>
> Gord
>
>
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