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Water in 1 cylinder |
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redtoybox 
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Joined: August-23-2016 Location: Knoxville, TN Status: Offline Points: 26 |
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 Topic: Water in 1 cylinderPosted: August-23-2016 at 6:01pm |
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I have a 1974 Nautique with a 351W Palmer Ford V8. The boat had a slight miss so I changed the spark plugs. When doing so there was water in the third cylinder (right side looking forward). NOT GOOD, but hoping it was just a blown head casket. ! Had a friend remove both cylinder heads, took them to a machine shop for an inspection, ground both heads, replaced one exhaust valve, reassembled with all new gaskets. Ran boat in water and engine was missing. Took spark plug out same third cylinder, and same thing, water in cylinder. Again removed this cylinder head, took to another machine shop, ground again, reassembled and same problem, water in this third cylinder. The obvious answer is a cracked block, but this engine has never been in a freezing condition (always stored inside a heated garage. Other than a cracked block, is there any other possibly problem area?
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Posted: August-23-2016 at 6:45pm |
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d*ck,
Pressure test your exhaust manifolds. I'm surprised nether of the machine shops suggested it. Welcome to CCfan. How about some pictures? We'd love to see the 74. |
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JoeinNY
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Joined: October-19-2005 Location: United States Status: Offline Points: 5693 |
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Posted: August-23-2016 at 7:01pm |
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What about sticking a 20 dollar compression tester in that number three hole there...
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redtoybox
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Joined: August-23-2016 Location: Knoxville, TN Status: Offline Points: 26 |
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Posted: August-23-2016 at 7:24pm |
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The first machine shop did replaced one exhaust valve, but I do not know if a pressure test was done. Excuse me for a stupid question, but is there cooling water in the heads?
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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Online Points: 21107 |
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Posted: August-23-2016 at 7:45pm |
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I would rebuild that cylinder head one more time just to be sure.
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redtoybox
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Joined: August-23-2016 Location: Knoxville, TN Status: Offline Points: 26 |
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Posted: August-23-2016 at 8:29pm |
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Again, my stupid question, is there cooling water in the cylinder head??
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SNobsessed
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Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Posted: August-23-2016 at 8:37pm |
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yes.
You might want to pressure test the cooling system, will take some plugs, etc. I would test it at 15 PSI. |
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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Dreaming
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Joined: May-21-2010 Location: Tacoma, WA Status: Offline Points: 1870 |
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Posted: August-23-2016 at 8:39pm |
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yes, cooling water passes through the head, but this does not sound like your problem.... you need to check the exhaust manifolds as the water chamber in those should be separate from the exhaust chamber. if the exhaust gas chamber gets water in it, it flows into the cylinder when the exhaust valve opens. this is a common failure point on older exhaust (worn through), or in cases where the boat was not properly winterized (frozen and cracked) Welcome aboard, I am sorry you didn't find us earlier
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Posted: August-23-2016 at 11:04pm |
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d*ck,
Did ether of the machine shops that worked on the head know it's a marine engine with water cooled exhaust manifolds? |
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jbear
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Joined: January-21-2005 Location: Lake Wales FL. Status: Offline Points: 8193 |
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Posted: August-24-2016 at 12:41am |
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Allow me to introduce you guys to one of my skiing 'heros' when I first joined the West Shore Water Ski Club; d*ck Waldbauer...
Great to see you on here d*ck. Sorry that I missed you at Norris this year...if you visited. Not sure. You will like the crew on here. Have had some fun times....kinda like ski club in the 70's. john stupid autocorrect......Richard Waldbauer |
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"Loud pipes save lives"
AdamT sez "I'm Canadian and a beaver lover myself"... |
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Gary S
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Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Posted: August-24-2016 at 12:46am |
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Looks like he needs a Eddie
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AirTique98
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Joined: January-13-2011 Location: avon lake, ohio Status: Offline Points: 321 |
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Posted: August-24-2016 at 2:03am |
Waaaaaaaaaaaaaaay more mechanical than my brother...but everyone could use an "Eddie"! Welcome d*ck....these guys will get you fixed!! |
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Bill
98Air Nautique Former Owner: 1990 Ski Nautique 1981 Ski Nautique 1976 Ski Nautique 1971 Ski Nautique |
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AirTique98
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Joined: January-13-2011 Location: avon lake, ohio Status: Offline Points: 321 |
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Posted: August-24-2016 at 2:08am |
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[QUOTE=jbear] Allow me to introduce you guys to one of my skiing 'heros' when I first joined the West Shore Water Ski Club; d*ck Waldbauer...
Likewise....one of our first barefooters and flier of the tandem kite/trapeze act in our ski shows. |
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Bill
98Air Nautique Former Owner: 1990 Ski Nautique 1981 Ski Nautique 1976 Ski Nautique 1971 Ski Nautique |
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Hollywood
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Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13510 |
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Posted: August-24-2016 at 11:18am |
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What exhaust valve was replaced? The rusty one from the leaky cylinder? Your problem is most likely a bad exhaust manifold but a compression test would certainly be a wise first move.
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redtoybox
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Joined: August-23-2016 Location: Knoxville, TN Status: Offline Points: 26 |
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Posted: August-28-2016 at 5:53pm |
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Thank you very much for your reply. I did not know about the exhaust manifold configuration. Wish I knew that before rebuilding the heads 2 times. I'm guessing the machine shop was never told the engine was a marine engine.
I'm having the manifold checked out. Thanks again d*ck Waldbauer |
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dockedwages1
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Joined: July-11-2016 Location: St . Louis Status: Offline Points: 50 |
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Posted: October-28-2016 at 5:55pm |
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Just wondering if the exhaust manifolds were your problem from the beginning? Do tell
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Gary S wrote: