I am taking the DT140 Suzuki off my bass boat, tired of working on it all the time and having a parts nightmare, Looking at an older Mariner 150 V6 carberated 2 stoke. It has been resting about 4 or 5 years they say, Went out to it today, removed the plugs and sprayed some deep creep in the cylinders, Turned the engine over by hand a few times and let it sit a bit. Hooked up a battery and spun it with the starter, Blew all the excess out of it and ran a compression check on all cylinders, came out as follows, #1-100, #3-102, #5-100, #2-100, #4-101, #6-100, Id like to think this is good. Reinstalled the plugs, pumped some premix deep into the carbs and spun it over with the starter, It actually fired for an instant and got blue smoke out the exhaust around the prop shaft.
Now here is what's bothering me, I think I hear a slight knock in this when spinning it with the starter, Hard to tell with everything going on and the engine not starting. I may be a litte too jumpy about this but don't want to pay the price if I have to rebuld the powerhead.
I couldnt "feel" anything with my hand on the block with it turning over, doesnt get any louder or anything, Im not used to a V type motor and wonder if they all sound like that when cranking.
Any thoughts, ideas, suggestions would be greatly appreciated.
I looked on the one Mariner serial number chart i could find and didnt find this number range under the 150hp's The covers clearly say 150 on them even though the paint is rather faded.
Serial number is 5316614
The only 531's i found showed a 175hp, Please help
Old men just want to go fishing
Retired widower seeks retired widow with boat and motor, Please send pictures of boat and motor
Now here is what's bothering me, I think I hear a slight knock in this when spinning it with the starter, Hard to tell with everything going on and the engine not starting. I may be a litte too jumpy about this but don't want to pay the price if I have to rebuld the powerhead.
I couldnt "feel" anything with my hand on the block with it turning over, doesnt get any louder or anything, Im not used to a V type motor and wonder if they all sound like that when cranking.
Any thoughts, ideas, suggestions would be greatly appreciated.
I looked on the one Mariner serial number chart i could find and didnt find this number range under the 150hp's The covers clearly say 150 on them even though the paint is rather faded.
Serial number is 5316614
The only 531's i found showed a 175hp, Please help
Old men just want to go fishing
Retired widower seeks retired widow with boat and motor, Please send pictures of boat and motor