blackmax xr2 not peeing at idle normal?

[msn26753]

Re: blackmax xr2 not peeing at idle normal?

Ok.. ive got a dummy idea.. can I just boil some water and stick sensor end into water and see if alarm sounds?

 

[sam am I]

Re: blackmax xr2 not peeing at idle normal?

Ok.. ive got a dummy idea.. can I just boil some water and stick sensor end into water and see if alarm sounds?

GL w boiling water.........tested mine(starboard sensor) and got it to snap(you'll feel/hear it click when it closes) closed with soldering iron.

"Temperature sensor in starboard cylinder head activates a warning horn when engine temperature exceeds 240? F ? 8? F (115.6?C ? ?13.3?C). Warning horn will deactivate when engine temperature drops below 210? F ? 15? F (98.9?C ? ?9.4?C)."

And no, it won't work, it MIGHT close in boiling water but unless the water is well grounded to the motor, how is the alarm going to get/see the ground it needs to sound?

Void begin_Rant(char functionality, int lowCost_fix);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
That sensor when closed/over heated "completes" a ground (its body being pushed down in the hole by the spring and touching the block.....yes, ****y/poor design to just push it(anything) on/to a surface for an electrical "ground"!! And a protection sensor even eh? Geeeesh) to the alarm.

ANY corrosion, dirt, oil whatever that gets/grows between that "pushed on ground sensor" and ground(the block) can/will prevent it from switching a ground to the alarm......JUNK IMO!! I switched mine out with a two wire thermal switch.......yes, it's true, I re-spec'd/replaced a $40 to $60 POS OEM spec'd part with a $2 Chinese part that has most likely higher MTBF, higher op temps, higher amp rating and is hermetically sealed as well AND has an actual ground wire, Gassssp!!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
return zero;


Make sure the seating surface("the hole"/ground) is clean clean clean and stays clean with the bung/plug in place

 

[Dukedog]

Re: blackmax xr2 not peeing at idle normal?

His isn't like that Sam. Which sensor do you have. It will depend on tha heads on your motor. Are your heads one or two piece?

You should be able ta leave tha lead on tha sensor hooked up to tha wire from tha harness. Take tha sensor out and ground tha body of tha sensor against tha block (edge of tha hole it came out of will work)and you should get a buzzer........If you don't its a bad sensor.

 

[sam am I]

Re: blackmax xr2 not peeing at idle normal?

Oh.......nevermind then, LMAO!!. One piece heads. I have both sensors, one on each head. The bi-metal on star for alarm(shown above) and linear on port for gauge.

I still feel better ranting though..........

For the one wire/bi-metal....Key "On"

Yes, can just leave all alone(wires on stud still) and just ground the stud as shown above to just test the alarm. But, to test the thermal response of the sensor, ya have to heat it and see if it closes though eh?.

Once closed, the body has to be ground(edge of hole, sure, any ground will work) to complete ground to the alarm if ya want to test both at once I suppose.

 

[msn26753]

Re: blackmax xr2 not peeing at idle normal?

Ok.. I took sensor out.. the actual round sensor doesnt do anything if I ground it. But the wire that connects to the sensor set off buzzer when it touches edge of block... also, the tan wire thats dangling, one tan wire connects to screw with tan and blue wire. The other tan wire goes to temp gauge. If I ground it then the gauge tachs out.. so where does this wire go? If I hook it up correctly then I will have temp gauge, which would be awesome...

 

[sam am I]

Re: blackmax xr2 not peeing at idle normal?

Ok.. I took sensor out.. the actual round sensor doesnt do anything if I ground it. But the wire that connects to the sensor set off buzzer when it touches edge of block

Heat it up to 250 F, it'll click there abouts, then ground it(the body to the edge of the hole for example).....it'll set off the alarm off if in fact when it clicked, it closed the bi-metal switch inside.

... also, the tan wire thats dangling, one tan wire connects to screw with tan and blue wire.

You lost me

The other tan wire goes to temp gauge.

Yes

If I ground it then the gauge tachs out..so where does this wire go?

You lost me again

If I hook it up correctly then I will have temp gauge, which would be awesome...

Yes and yes

 

[msn26753]

Re: blackmax xr2 not peeing at idle normal?

 

[msn26753]

Re: blackmax xr2 not peeing at idle normal?

Where does that tan wire go?

 

[sam am I]

Re: blackmax xr2 not peeing at idle normal?

Where does that tan wire go?

If that wire is just tan AND goes to a sensor in the head that ALSO has a black wire coming out of it to ground, it goes to a temp gauge and....

Test port side by heating it up one way or the other and either watch your gauge with the key "ON" or, use a ohm meter and measure across it as you heat it up. It should be around 700 Ω's @ 70 or 80 degrees F and go down in resistance as it is heated up.

philanthropist!!, I tip my hat.

 

[msn26753]

Re: blackmax xr2 not peeing at idle normal?

I think im missing something.. this maybe why its not hooked up. On the port side on the top is a hole with bracket over top of it ... I bet that is where a sensor or sender should be.. its an empty hole about 1 inch deep... is that where tan wire suppose to connect to? This sucks because marine shop says its $80 for a sendor unit

 

[msn26753]

Re: blackmax xr2 not peeing at idle normal?

Also.. my whole point of thread was that I was worried because my motor is not peeing at idle. I cranked it up and idled for 20 minutes on muffs.. the water here is still cold. But the engine never started peeing. I kept my touch block/heads and i could feel them getting hot then cooling back down. But never any wayer out pee hole. Except when I rev it up, I get some really warm water that turns just warm after a half a minute..

 

[wired247]

Re: blackmax xr2 not peeing at idle normal?

I think im missing something.. this maybe why its not hooked up. On the port side on the top is a hole with bracket over top of it ... I bet that is where a sensor or sender should be.. its an empty hole about 1 inch deep... is that where tan wire suppose to connect to? This sucks because marine shop says its $80 for a sendor unit

That hole on the port side is for a 3 wire temp sensor for EFI motors. The starboard sensor is the one for the temp alarm. Its not $80.

 

[msn26753]

Re: blackmax xr2 not peeing at idle normal?

I think thats what im missing is the one on port side..

 

[wired247]

Re: blackmax xr2 not peeing at idle normal?

Carb motors dont use a port side sensor. Port or starboard . It doesnt matter. You just need one sensor to trigger the overtemp alarm.

 

[sam am I]

Re: blackmax xr2 not peeing at idle normal?

My port sensor...Goes to Temp Gauge

13536A Mercury Mariner Quicksilver Temp Sensor | eBay

My Starboard......Goes to alarm via terminal block......see photo above. POS design I was referring to btw.

New Mercury Engine Block Temperature Temp Sending Sensor Unit 974651 Sender | eBay

Need your water flowing though before I'd sweat any of this sounds..........was just following up on alarm and sensor testing for ya, least you'll have a good idea when ya get there eh?

You can run two sensors btw, alarm of course and just install a temp gauge sensor in the hole and get a Faria temp gauge for example.....piece of cake

 

[msn26753]

Re: blackmax xr2 not peeing at idle normal?

Sam am I.. what do you think about me running this engine at idle on muffs for 20 minutes and still no pee? It been about 50-60 degrees here outside. So I dont know water temp going into it.. when I rev it, water is really warm coming out peehole but thats it..

 

[sam am I]

Re: blackmax xr2 not peeing at idle normal?

So low pee pressure? Hard say'n for sure cause as duke said, they vary some and best way to know is instrumentation but, My 175 would have pee'd idling by then even at 20 degrees F and 32.1 degree water on muffs. Ummmm maybe need new impeller, when was last time replaced? Got water pressure gauge? If ya don't know for sure......replace the impeller, it's easy. And install a water pressure gauge too if you don't have one.

 

[wired247]

Re: blackmax xr2 not peeing at idle normal?

My port sensor...Goes to Temp Gauge

13536A Mercury Mariner Quicksilver Temp Sensor | eBay

My Starboard......Goes to alarm via terminal block......see photo above. POS design I was referring to btw.

New Mercury Engine Block Temperature Temp Sending Sensor Unit 974651 Sender | eBay

Need your water flowing though before I'd sweat any of this sounds..........was just following up on alarm and sensor testing for ya, least you'll have a good idea when ya get there eh?

You can run two sensors btw, alarm of course and just install a temp gauge sensor in the hole and get a Faria temp gauge for example.....piece of cake

The port sensor in your case is an option put there by the boat manufacturer. Most V6's dont use a variable output sensor for a gauge and it is not required for the engine to function. The port side is typically used for one of the EFI's temperature compensation sensors. The other one is in the fuel management box.

 

[sam am I]

Re: blackmax xr2 not peeing at idle normal?

The port sensor in your case is an option put there by the boat manufacturer. Most V6's dont use a variable output sensor for a gauge and it is not required for the engine to function. The port side is typically used for one of the EFI's temperature compensation sensors. The other one is in the fuel management box.

Nah, just ordered the engine like that. Suppose it was just an "option" I reckon. Don't really need the alarm per-se for the engine to function either. Mine anyway, was just a good idea IMO

 

[Dukedog]

Re: blackmax xr2 not peeing at idle normal?

1st. Don't worry about tha idle stream ON THA HOSE. like Fb said a long time ago. If you get it in tha water and it continues ta be that way that MAY be another problem. Hard ta say on a computer...........

2nd. Make sure tha wire from tha overheat sensor (which sounds like its tha only one you have) is made up on tha tan that comes from tha FEMALE (motor ) side of tha harness plug.

3rd. Tha tan with bullet (female I think) connector comin' out of tha MALE (boat) side of tha harness plug is for tha TEMP gauge. Looks like tha one dangling in your picture. You gotta have that sensor (two wire that you don't have) for tha port head for it to work. This is an OPTION from dealers and can be added later. That wire is in most ALL harnesses whether its used or not.

If your unsure about tha overheat sensor, replace it and go on......

Things ya NEED tha most.

Water pressure gauge (Very important)
Heat reading gun (removes all doubt)

Something for your book Wired..... Tha 3 wire sensor for tha efi was an "option" on tha original efi's. Cost ya an extra hundred ta have a temp gauge sender wire.