Winnipesaukee Forum - View Single Post - Gas-Mechanical problem with boat engine

bigdog · 05-28-2008, 08:40 AM

Thanks everyone, learned a few new things here I wasn't aware of.....

Didn't know that the fuel lines were rubber coated on the inside, thought these were strickley metal line feeds ? I can definitely see a problem
with any rubber lining breaking down with ethanol base gas.
Will look for pieces of rubber in with your filters as suggested.
.
Also, plugs were not changed last year, on the radar for this season.
I don't change out every year, because really don't see the need, as I probably only put 50+ hrs on engine in any given season. Plugs should last
double that age. With the gas additives and stabilizers, used for winterization
I can see a potential problem with plugs building up with gunk !
Plan to change out plugs this week.

Also going to replace ignition wires and distributor cap. Does 'rotor', usually need to be replaced ? And is this difficult to remove this off the top of distributor ? On rotors at least on cars, you just pulled up and off.
My understanding is that on Mercruisers (at least mine), you must position two screwdrivers on either underside of rotor/sensor wheel and pop-up as one unit ? Also, I guess you must adjust the carbon tang on rotor, between rotor and tang ?

Last, I know in Mass. you cannot purchase gasoline, whether on land or at a marina, without the ethanol additive, it's the law. Is this true in N.H. ?

Comments and suggestions are always appreciated !
Thanks everyone !

05-28-2008, 08:40 AM	#7
bigdog Senior Member Join Date: Apr 2006 Location: Central MA-Gilford Posts: 1,459 Thanks: 357 Thanked 126 Times in 100 Posts	Gas-Mechanical problem with boat engine Thanks everyone, learned a few new things here I wasn't aware of..... Didn't know that the fuel lines were rubber coated on the inside, thought these were strickley metal line feeds ? I can definitely see a problem with any rubber lining breaking down with ethanol base gas. Will look for pieces of rubber in with your filters as suggested. . Also, plugs were not changed last year, on the radar for this season. I don't change out every year, because really don't see the need, as I probably only put 50+ hrs on engine in any given season. Plugs should last double that age. With the gas additives and stabilizers, used for winterization I can see a potential problem with plugs building up with gunk ! Plan to change out plugs this week. Also going to replace ignition wires and distributor cap. Does 'rotor', usually need to be replaced ? And is this difficult to remove this off the top of distributor ? On rotors at least on cars, you just pulled up and off. My understanding is that on Mercruisers (at least mine), you must position two screwdrivers on either underside of rotor/sensor wheel and pop-up as one unit ? Also, I guess you must adjust the carbon tang on rotor, between rotor and tang ? Last, I know in Mass. you cannot purchase gasoline, whether on land or at a marina, without the ethanol additive, it's the law. Is this true in N.H. ? Comments and suggestions are always appreciated ! Thanks everyone !