Let me try a better description of the sound the motor is making. I have been thinking about this for 3 days and to me as you get up close to the powerhead it sounds like a valve or lifter tapping on a four stroke. But of course it isn't. The noise is very noticeable even 10 feet away, I am just not sure of the reason or the exact location. The motors were run in the Gulf for there entire life but were flushed and then kept in a warehouse after each trip. They have none or very, very little corrosion showing on the outside. The gear lube in the lowers was old and not real dark with absolutely no evidence of water.
Lew,I really can't hear the engine noise as you describe; not to say it's not there, I just can't hear it with distinction. Now the quick way to check for wrist pin or rod bearing issues is to remove all the spark plugs and preferably the lower unit to eliminate water pump drag and roll the engine over by hand and feel for the clearance by getting the each piston to TDC and just roll it just an RCH (or the color of your choice) past TDC and take a Phillips screwdriver and push on the piston through the spark plug hole and try to feel the clunk when you re-load the bearing against the internal clearance. It's redneck but it works. Looking at the headgasket joints, these engines are really clean or the heads have been off, or they've never seen salt. If I was within reasonable traveling distance,I would go listen to them but its not practical for me plus I don't like making used engine acquisition decisions for someone 3000 miles away. So my decision would be to add $3000 to whatever the negotiated purchase price is and calculate if its still a good deal considering the price of new engines minus what Bryan could sell his 250 Yami for. The time to go inside the engine and look around before it blows up is now, before it damages other components. I would negotiate the engine noise if its real and allow for it.My $1.385
Hi Bryan,I would absolutely rebuild what you have over finding another "rebuilt" powerhead. The damage at this point sounds minimal. Might be just a bearing and someone competent can disassemble it, assess the damage and make repairs. There is much risk trying to find an honest reman engine that's not built from multiple engine engine donors with used parts. I'm getting ready to do surgery on one of my 115's that's had a rattle for 3 years and I can't stand it anymore. The engine runs perfect but has a rattle that needs to be addressed. I've spent hours listening to it and I believe it is either a top bearing or#1 rod bearing so I'm going to tear her down for exploratory surgery. The compression is perfect. So to completely re- bearing and re seal the engine with the special tools I need is about a $1K, and when it's done I have no worries that it was assembled correctly and should have no surprises.
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Topic: Possible outboards for my Osprey VIDEO IS UPLOADED!!!!! (Read 1223 times)
