Need help with a Part #

[RetiredGuy]

2010 F90TLR engine

Got my engine connected & operational to a NMEA2K backbone and on to an Ethernet adapter needed for the Humminbird Helix 7 MFD. Temperature, RPM, Fuel consumption function as needed however OIL PRESSURE does not function. Looks as if I need yet another part for the engine which from what I can determine is an option.

Asking for help obtaining the part number of the oil pressure sensor

[boscoe99]

The F90TLR does not have an oil pressure sensor. It uses an oil pressure switch only. Thus, no oil pressure data is available to an NMEA 2000 network for this model.

[RetiredGuy]

Thanks for the bad news

I was lead to believe that I could get an optional sensor as compared to the stock switch thus get the data on the network. Was looking for oil temperature as well guess it's the same situation.

[boscoe99]

The engine does not have an oil temperature sensor. It does have an engine temperature sensor however.

I would suspect that there is an aftermarket oil pressure sensor that is NMEA 2000 compatible and which could be connected to the motor. Others have been known to T into the oil pressure system so as to obtain oil pressure data for a mechanical gauge. Same methodology could be used to T an NMEA 2000 pressure sensor into the oil system.

[RetiredGuy]

Again thanks for the help
I found an aftermarket sensor from Lowrance
Guess I will give it a try

[fairdeal]

regarding that Lowrance device, just be aware:

1.Pressure Sensor – pressure data: Engine Boost Pressure, Engine Oil Pressure, Engine Water Pressure*, Transmission Oil Pressure and Pitot Speed

* Sensor is pre-configured to display this information.

2. "Can only be configured by compatible Lowrance, Simrad and B&G displays and gauges "

So when you plumb it into the engine oil port, and connect it to your Humminbird, it will broadcast pressure -
but the Humminbird will display it as "Engine Coolant Pressure"

That ID can be changed - but only via being connected to a Navico product

[RetiredGuy]

Hey - Thanks for the heads up

Said to see Yamaha does not offer the Oil pressure and oil temperature sensors for my engine.

Ran the Yamaha Engine today for about 4 hours (catching not just fishing) the "limited" readouts in the Humminbird display worked great. Not sure why the engine runs so cold at 150F degrees - only thing I have to compare to are the several road legal vehicles we have all run 190 to 220

[boscoe99]

Outboard motors, being made of aluminium and designed to be cooled with saltwater, run much much cooler than automotive engines using a closed coolant system. The over temperature sensor on your model for instance is designed to set the alarm if and when it gets to 194 degrees F.

[RetiredGuy]

Hey - Boscoe

Several of my road legal engines are Al blocks as well but NONE of them are designed to be cooled by saltwater (might be the issue) - I for one will never put my several Yamaha outboards in saltwater - Rental boats work great for that application - My boats live a nice life in the cold clear fresh waters of Montana. My reference is an older 1996 4.3L I/O we had with a stock thermostat set to 195F yes it was an iron block.

Will keep you updated with the oil pressure display as time goes by

BTW - picked up several 26" to 30" northern pike this morning

[rodbolt17]

why waste the money????
I have been doing this type of work since I was 15, I am now 55.
in all the years I have never seen an oil pump fail.
make sure the audible works.
waste the coin on cool refreshing beverages.
most all catastrophic failures are cooling system related.

[RetiredGuy]

Thanks for the info regarding cooling related failures
Like the vehicles of the past with idiot lights when it lights it's too damn late

I hooked up the system to play with techno toys plus to be able to view the engine temperature along with other data on the Helix while making Auto Chart Maps of my local lakes

Regarding wasting the coin ... Guess my situation is a bit different ..I do it "Because I Can" coin is not much of a concern. I just like playing with techno toys. Picked up a DRBIII for my Jeeps and RAM, a Tech2 for my RV/Chevys, the YDIS and several other tools aka toys. The older the boy get the more expensive the toy get.

Retired and loving life

[rodbolt17]

idiot lights work better than gauges. they tend to draw attention.
audible alarms work even better.
cant tell you how many times over the years I have looked at a gauge and wondered how long has it been pegged.
keep the cooling system maintained and keep the fuel system maintained and you wont see many issues.

as far as toys, I collect and shoot antique military, I shoot cowboy action and occasional the pistol action.

yep toys get spensive .

[99yam40]

Way back I had a 64 galexie 500 XL.
it had gauges

headed down to the beach one day it started missing real bad, looked at the temp gauge and it was pegged.
popped a bottom radiator hose.
352 motor got so hot the plug wire boots melted. let it cool off put a hose on it and filled back up with water to see how bad it was damaged. motor never missed a lick. drove it for many years after that.

no modern motor could do that now a days

[rodbolt17]

years ago we ran them at below 143 due to the mineral content in the water tends to form scale at about 150*F.
EPA emissions and modern EFI means hotter operating temps but we still try to keep them as low as possible due to scale.
most modern autos run temps in the 195-205*F range.
the hotter you can run it the better the engine efficiency.
all the way up to the point of failure.