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Hello everyone,
I'm looking for help on my suzuki 4 stroke 140DF. I own 24ft OS Cape Horn with twin 140 suzuki (owned for one year). I recently launched my boat in a hurry and this may sound weird to most captains, but I leave my boat hooked to the winch until the boat stern is floating. Anyways this one time I do it in a hurry I trimmed the motors down while the boat was entering the water which submerged the engines past the pee hole and small exhaust port next to it. I crank up the engines and they both start but sound terrible and muffled, seconds later they both stall. I've had the boat for just over a year and I've never had them stall like that. So I cranked them up again used a little throttle and the both started running fine. I ran them up to 4400 rpm planed off to make sure they were fine and to burn off any water that may have been in the exhaust port. So the next trip out engines run fine for most of the trip. On they way back I get the oil alarm sequence and I headed straight in to the dock. Heading in the starboard engine started vibrating terribly at 3000rpm and would not go over 3000rpm. I check the starboard motor and behold its milk chocolate. The portside motor has black oil still but now Im starting to think it may have some brown chocolate tint to it also. So I get back changed the oil, changed the oil filter and did a whole inspection of the engine. Sure enough the stupid steel plug that I've read on the hulltruth.com has obviously busted some small pin holes through the side on both motors. I caught it early and have been watching it,
so it didnt burn up the wire harness like everyone else. So im calling in a welder to patch those holes. (so I got that to deal with) So I run the motors with the earmuffs they start up fine, sound fine, no crazy vibrations. I looked at the steel plug wholes on the side just by the flush port and just hot exhaust and little water comes out, no oil. (same for both).
My question is: Is there any possible chance that when I launched the boat the water got into the exhaust port and some how traveled down into the oil?
And if so why is just the one starboard motor run like crap.
After the oil change I ran the motor again with earmuffs and looks like it still has a small tint of milk chocolate with the new oil. I also did notice when I took the bad oil out there was small tiny clumps of corrosion or sediments, and the oil filter had some sludge in it.
I did compression test the third day and inspected spark plugs. compression test was complete fail on number 3 cyclinder. Spark plug of #3 shows signs of water in the cylinder.
Did i the engine block just blow? or am I dealing with a blown head gasket?
I have some people telling me its a crack in the block. And that a head gasket you'll get water in all the cylinders.
Saturday I'm planning on taking the head off to see if its the gasket that blew. I really hope thats the case.
Any advice would be appreciated. The motors are 15 years old and have about 800-900 hrs. So it may be time to repower.... I hope this isnt the case.
-Radraft
I'm looking for help on my suzuki 4 stroke 140DF. I own 24ft OS Cape Horn with twin 140 suzuki (owned for one year). I recently launched my boat in a hurry and this may sound weird to most captains, but I leave my boat hooked to the winch until the boat stern is floating. Anyways this one time I do it in a hurry I trimmed the motors down while the boat was entering the water which submerged the engines past the pee hole and small exhaust port next to it. I crank up the engines and they both start but sound terrible and muffled, seconds later they both stall. I've had the boat for just over a year and I've never had them stall like that. So I cranked them up again used a little throttle and the both started running fine. I ran them up to 4400 rpm planed off to make sure they were fine and to burn off any water that may have been in the exhaust port. So the next trip out engines run fine for most of the trip. On they way back I get the oil alarm sequence and I headed straight in to the dock. Heading in the starboard engine started vibrating terribly at 3000rpm and would not go over 3000rpm. I check the starboard motor and behold its milk chocolate. The portside motor has black oil still but now Im starting to think it may have some brown chocolate tint to it also. So I get back changed the oil, changed the oil filter and did a whole inspection of the engine. Sure enough the stupid steel plug that I've read on the hulltruth.com has obviously busted some small pin holes through the side on both motors. I caught it early and have been watching it,
so it didnt burn up the wire harness like everyone else. So im calling in a welder to patch those holes. (so I got that to deal with) So I run the motors with the earmuffs they start up fine, sound fine, no crazy vibrations. I looked at the steel plug wholes on the side just by the flush port and just hot exhaust and little water comes out, no oil. (same for both).
My question is: Is there any possible chance that when I launched the boat the water got into the exhaust port and some how traveled down into the oil?
And if so why is just the one starboard motor run like crap.
After the oil change I ran the motor again with earmuffs and looks like it still has a small tint of milk chocolate with the new oil. I also did notice when I took the bad oil out there was small tiny clumps of corrosion or sediments, and the oil filter had some sludge in it.
I did compression test the third day and inspected spark plugs. compression test was complete fail on number 3 cyclinder. Spark plug of #3 shows signs of water in the cylinder.
Did i the engine block just blow? or am I dealing with a blown head gasket?
I have some people telling me its a crack in the block. And that a head gasket you'll get water in all the cylinders.
Saturday I'm planning on taking the head off to see if its the gasket that blew. I really hope thats the case.
Any advice would be appreciated. The motors are 15 years old and have about 800-900 hrs. So it may be time to repower.... I hope this isnt the case.
-Radraft
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