| Author |
Message |
    
Jack Lee Brown
Member
Username: pilotnomore
Post Number: 5
Registered: 08-2008
| | Posted on Wednesday, September 16, 2009 - 04:56 pm: | 
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Put the boat in the water ran at low speed (less than a 1000rpm)for about 10 min. heard loud squeal and thought it was a belt. Took a look and realized I did not open sea cock. Shut it down and needless to say I think I screwed the pooch. Engine turns over but not fast enough to start. Any really good sugestions other than going to happy hour and staying there? Thanks any input will help! |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 6792
Registered: 09-2003
| | Posted on Wednesday, September 16, 2009 - 05:46 pm: |
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You may have "merely" destroyed the raw water pump, and that it has seized (which accounts for the slow turning over). Wait 'til the motor is cold, remove the belt from the pump, and try again--with your fingers closed!
Jeff
PS: Here's another case where not checking to see if "she's pumping water" would have saved some destruction. Okay, so I started off with outboards, but I still do this every time I fire my inboards. |
jim piersol
Member
Username: sammi
Post Number: 70
Registered: 05-2007
| | Posted on Thursday, September 17, 2009 - 07:54 am: |
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Every boat I ever had I checked if water was coming out. I even cut a hole in a swim platform once so I could check it. My Tiara 31 exhaust is half under water so it is tough to tell. I hate that. |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 6802
Registered: 09-2003
| | Posted on Thursday, September 17, 2009 - 08:59 am: |
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Good for you. My slip neighbor had a swim platform built for his boat with three larges holes cast in, one for each motor and the gen-set.
Jeff |
Jack Lee Brown
Member
Username: pilotnomore
Post Number: 6
Registered: 08-2008
| | Posted on Thursday, September 17, 2009 - 11:41 am: |
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Thanks Guys Tried the raw water pump deal already. Didn't work. I've got a Penn Yan with a PenTone system and ya really can't see if it's pumping or not. LAME EXCUSE but the best I have. Can't tell if it's rings or maybe a spun bearing. Ya can hear a little squaking after a few seconds of cranking. Question if it's rings could ya oil the cylinders with something and crank (within reason) to see if rings will free up hoping they aren't broke. It did not really run long enough to toast an engine I don't think. Less than 10 min and less than a 1000 rpm. But don't know! |
Hy Stat
Senior Member
Username: hystat
Post Number: 1487
Registered: 05-2007
| | Posted on Thursday, September 17, 2009 - 12:25 pm: |
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10 minutes no cooling....
first thing to do is invest $35 in a filter cutter.
Cut the oil filter and look in the pleats for aluminum and steel.
Second step is a compression test.
The concern isn't rings seized or broken.... it's piston skirts adhering to the cylinder walls -the friction welds the aluminum skirt to the cylinder and then breaks it, then welds again , then breaks again....
oil cant reattach the aluminum to the skirts
10 minutes might not have gotten to that stage, but a look in the filter pleats is like an X ray of the engine - it lets you see what happened inside |
Jack Lee Brown
Member
Username: pilotnomore
Post Number: 7
Registered: 08-2008
| | Posted on Thursday, September 17, 2009 - 01:06 pm: |
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Hy Stat Excellent info!. Thought about compression ck. didn 't think about oil filter. I'm in the Pan Handle of FL and we've been in a 3 yr. drought. But now it has't stoped raining since this engine deal started. But I'm gon'na take your advice and have a look see. Thanks again! |
