Well that oil should be good enough to protect the engine, but I guess the combination of the sodium from salt water and fuel dilution of the oil is what's showing in the oil analysis.
I'd do the clear hose test with the boat in the water next.
Wow so your problem was actually excess oil causing the crankshaft to run in the oil kicking up a froth that lowered the oil pressure. Easy solution, do your own oil changes!
There is a quirk to checking oil on some of these engines that I've observed over time....it is due to the use of the oil...
Sounds good
this is a funny problem because you have a fuse not blown, has continuity, but not enough amps flow to make things work.
one year it was the ignition circuit
this year is was the accessory 12V plug
it is 35 years old though!
A '96 should be a Vortec engine with an electric fuel pump.
Holley 2 or 4bbl carb?
When you went through the carb did you replace the needle valve and check the float height?
Also, sometimes rich running is due to clogged air bleeds, make sure to blow them all out.
Lastly, are the idle...
I’ve had this happen a few times with the old fuse box under the dash of my ‘88 Four Winns; something will quit working & I remove the old glass style fuse clean off the terminals & it works again. Should I use dielectric grease, conductive grease or NoAlox to prevent the oxidation?
Eventually...
Did that 15 years ago when I replaced the deck. Pontoon seats fit perfect & aren’t all that heavy. Still going to do the remote filter mount & extend my block drains. Then no seat removal necessary unless I have to do something more involved like a starter.
What I did to make mine easier to get at....rear seat is in 2 halves (pontoon seats) and rear wood bulkheads come out easily with machine screws and wing nuts. One side opens like a door on hinges. So I lift out the seat back, lift out the bottom, slide it forward, then remove 6 screws and one...
Our local dock in Long Island NY
winter view from our house, some years it does freeze enough to walk on it
Eaton's Neck, Northport Long Island with Connecticut in the far distance, here it's only about 10 miles across
That’s the problem with predicting outcomes with blown HGs; it all depends on where they blow. Mine didn’t blow between cyls it leaked from a water passage.
got it now?
or else get one of these
Michigan Motorz sells em, this one has a bracket for the Volvo style exhaust you'd need a Merc one. Not cheap though.
I'd make that seat mount removable, and you might do the same thing on the other side, in case you have to replace a starter or even worse...
oh oh morphing into an oil thread!
I think it's easier to say what NOT to use, than what to use...so...
don't use an automotive grade 5/30 or 10/30 in that old inboard, it is likely to thin out at sustained high revs.....
I have used:
straight 30
straight 40
Merc 25/40 conventional
Merc 25/50...
Ahhh ever work on a small block Chevrolet before?
Those of us of a certain age, all have and are used to feeling around for that well hidden filter.
I'd make that wood work removeable like it is on my boat, cheaper 'n a remote filter, although, I just bought one and will install it in the fall...
