Engine Talk
 

I came across a 1995 Evinrude 150 on the auction site which had a failed "fuel pressure switch". What is this and how does it affect the engine? Thanks for the insight.

Re: Engine Talk
 

are you sure it's a 1995? Evinrude has a parts catalog online, but I don't recall any fuel pressure switch on a carb 150 oceanpro.

Re: Engine Talk
 

No such animal. Be wary! A lean condition can be fatal fast.
`89 20sf 96 150 Ocean Pro.

Maybe they were referring to a VRO failure. Lots of failures due to this. Great motors, but the first thing I did to mine was remove the vro and take it to G&S to have George reprogram it. Yeah you burn a little more oil , but it beats hearing BOOOOOM. The oil pump diaphram fails and that`s it.
Get some compression numbers!

Re: Engine Talk
 

Hey Sandy, Theres a fuel "vacuum" switch on our motors. Tan and black wires, switch is right under the plastic fuel inlet/filter. Seloc manual doesn't say what it does though.

Re: Engine Talk
 

Thanks Red,
My manual doesn`t say either....Maybe part of the smartcraft system?

Re: Engine Talk
 

I cant find a pressure switch. See if you can find out the model #.

Re: Engine Talk
 

From what I've read the VRO is vacuum operated. My VRO was completely removed when I had to replace the fuel pump. The new pump was the non-VRO replacement model but it still has that vacuum switch. Wiring diagram shows the tan wire as part of the VRO and temp circut.

Re: Engine Talk
 

If it is what I think it is, there is a sender switch that checks for restriction in the fuel system, and if you have a restriction, like a plugged filter, it will give you a fuel alarm. I know a guy with the identical motor, and he would get alarms all the time. He took it to the best Johnson mechanic I know, and they changed the switch, filters, and most everything else, tested it with a vacuum gauge, and could never get it to stay off. He pulled the wire, and the boat is running fine, and ignored it.

I have heard of a few other similar stories, and they were never able to get it to stay off, and disconnected it.

Re: Engine Talk
 

As I mentioned, the engine is on an auction site. Here's the response from the seller regarding my request for misc. engine info: "It runs but rough as it is not getting the fuel pressure needed , if you are to use us here we will install a new switch and motor will be running to your satifacition . all cyl have good compression .believe it is rh rotation , unknown hours but was on a lawyers boat..." Price is below $500. Whata think?

Re: Engine Talk
 

The lower unit alone is almost worth 500 bucks.

Re: Engine Talk
 

Can't beat the price of the motor but that motor is gonna beat you up at the gas pump. Is the shaft length correct for your transom? Do you need a harness and controls?

Re: Engine Talk
 

Great price! Good compression is subjective.I`d like real numbers. Is it close to you? Let me know if you pass on it I may buy it for future parts. They are thirsty.

Re: Engine Talk
 

The engine is in Bath, NC on eBay. I posted my question becuase it got me thinking as I near completing my 20, repowering is an option I'm looking at. For the ocasional offshore runs and putting around the lakes, rivers & bays, what would be a good engine to look at without digging too deep into the pocket - keeping in mind the present gas prices and limited use. I have a '96 Evinrude 150 OceanPro now.