razor1115

Guys,

Where are the water pressure sensors located on a 500hp? Are they sensors or just ports that use pressure to drive the gauge (like a boudon tube)? My port water pressure gauge quit registering after we got stuck in mud Saturday. I assume its just plugged but need to know where to start backflushing.

Thanks
Zack

Cam-shaft

Usually, water psi gauges are manual and should be tied into one of the engine block drain plugs.. That way you are getting exact block psi. I am going to say you have a hose coming off the stbd side of the block in front of the starter just above where the oil pans starts. Thank you, Cam-shaft.

Griff

The guages are fed by a small tube. Chances are the tube is plugged. You may be able able to unclog it with a very thin wire. The tube is most likely fed from the block drain.

razor1115

Thanks for the help, guys...