Oil Pressure Sender failure modes?

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,617
A pressure sender has a strain gauge, piezo sensor, or some other means of measuring strain on a diaphragm to convert into an electrical resistance.
Would require additional circuitry. Most work the same principal as a liquid level sending unit.
Diaphragm driven wiper rubbing a resistance blade.
 
Last edited:

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,206
the free jet ski will cost you plenty of money.

did you get a remote for the lift? we talked about that almost 3 years ago.

however for the easy sensor. I use the oil pressure switch feeding my fuel pump for the oil pressure signal. its a 10 psi on rise and 7psi falling switch IIRC. the NO side for the relay, and the NC side for the alarm. I use a 220F temp switch for the block coolant temp, and I use the switch contacts in my oil temp sender for the oil temp side (250 F) . using one of teh $15 dash mounted light/horn deals

Erin should be far enough off shore not to worry.
 

nola mike

Vice Admiral
Joined
Apr 22, 2009
Messages
5,680
the free jet ski will cost you plenty of money.
I am aware. project with the boy. figured it would be relatively simple, carb'd 2 stroke, right? "all it needs is a battery". and then sea doo entered the chat.

did you get a remote for the lift? we talked about that almost 3 years ago.
still in the planning stages

however for the easy sensor. I use the oil pressure switch feeding my fuel pump for the oil pressure signal. its a 10 psi on rise and 7psi falling switch IIRC. the NO side for the relay, and the NC side for the alarm. I use a 220F temp switch for the block coolant temp, and I use the switch contacts in my oil temp sender for the oil temp side (250 F) . using one of teh $15 dash mounted light/horn deals
interesting. hadn't thought to do that. wondering how annoying that alarm would be in practice.

Erin should be far enough off shore not to worry.
anything off shore the winds get funneled up the river. maybe nothing, but I won't be there to monitor. I won't be upset if I over prepared.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,206
interesting. hadn't thought to do that. wondering how annoying that alarm would be in practice.
you get the alarm at key on until there is oil pressure when cranking. I did install an alarm silence button.

I am aware. project with the boy. figured it would be relatively simple, carb'd 2 stroke, right? "all it needs is a battery". and then sea doo entered the chat.
LOL. if you have good compression, the rest is fairly easy.
 
Top