225 Optimax opinions

[captpete13]

Originally Posted by jasoncooperpcola

It would be nice not to have to premix, but if oil is in the fuel tank then i know its there. I think i found the oil pump gear, its called a "gear kit" on the crankshaft and is $40 but dam Phat was right you have to disassemble the entire powerhead. You would think there would be some way to retrofit a new oil pump onto the flywheel or something. I dont even know if the oil pump is hooked up or not. But i plan to have a premixed 6 gallons of fuel.

I learned from the Johnson to check the steering shaft etc.

a couple months ago I installed an electric oil pump conversion for a 2.5 merc. It uses an electric motor to run the merc mechanical pump. It all fit under the cowl with no real modification to the engine. When I go to work on Monday will try to find the papers for it.

[THEFERMANATOR]

Originally Posted by captpete13

a couple months ago I installed an electric oil pump conversion for a 2.5 merc. It uses an electric motor to run the merc mechanical pump. It all fit under the cowl with no real modification to the engine. When I go to work on Monday will try to find the papers for it.

Here you go. I honestly don't know why Mercury never made a replacement bronze gear for the crank.

[jasoncooperpcola]

But what if you lose battery power or somebody turns the battery switch off while running? I assume the 2.5L will run without a battery after its started. Do the 2.5L have an alternator?

Also what should i read on a multimeter on the plug leads? On my 1985 Johnson 150 it had low voltage on two plug leads. May be contributing to why it was so thirsty and had no power.

Priced out a Mercury binnacle control $334. May find an aftermarket cheaper but i would like to stay with all Merc controls and gauges. What about a prop, whats a good starting point?

Is this the electric oil pump?? www.marinesolutionswi.com/index.htm

[captpete13]

That's it. Ironicly enough my Yamaha rep helped develop this product. It uses the merc oil pump and keeps all the merc alarm sensors. If I had a 2.5 Merc that's what I would use. Sure beats wasting expensive oil on premix.

[phatdaddy]

http://www.propelledmarine.com/oil_injection.htm

$400, pricey, but a lot better than tearing down the engine & putting it back together.
with another plastic gear.

nice info , capt pete

[jasoncooperpcola]

Stuck in the house today. As if the pouring rain wasn't enough i have a killer toothache now. I hope to look at the outboard tomorrow weather permitting.

I like the EOI. But my only concern is if it loses power. The power wire is connected to the starter solenoid. Like i stated earlier what if the battery gets disconnected? $400 is a bit pricey but, when compared to carb cleaning and plugs changes associated with premix, i think it might pay for itself. Even just in the oil cost.

[spareparts]

they've been running electric oil pumps on optis for quite some time now. If you disconnect your engine while running, you're going to burn up some electronics as well. Just don't disconnect it

[Destroyer]

Originally Posted by phatdaddy

http://www.propelledmarine.com/oil_injection.htm

$400, pricey, but a lot better than tearing down the engine & putting it back together.
with another plastic gear.

nice info , capt pete

Bad link? IE keeps shutting down the site, saying it has a problem?

[phatdaddy]

d, i just tried it & it connected. it's basically the same info jason posted with prices.

jason, i just looked at the radar, you guys are getting hammered. we are still between bands, so we're gonna run out and get the crab traps in and try to be back before the bottom falls out. good luck with the tooth