Is there any place to install a Sierra MP41400 Pressure/Temp Audible Warning Kit on a 5411 international diesel?
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Pressure/Temp Audible Warning Kit
- Thread starter Woodworks1
- Start date
Check the Kubota engine equivalent on-line manual. I don’t have a link but should be easy to find. Therein lies your answer.
Don,
Thank,
Not much help there,
I am assuming I just put a barb tee for the temp and a threaded tee for the oil pressure sensor and run wire for the electrical.
I guess I was just looking for a cheap magical solution.
And here is what Catalina Direct says.
2) Universal never provided an upgrade to add a temperature switch to the early 5411 engines, so we do not have a ready-made solution for that engine.
Tech Support
The simplest ready made solution would be to screw the temp. sensor into an avilable hot AF hose such as this one that goes to the hot water heater :
If you're not feeding AF to a heater, look for any other small AF hose on the engine and see if you can insert a threaded Tee.
Cost is minimal and takes just a small amouny of futzing around to find a suitable AF hose.
Hope this helps.
Modifications interest me. In other words short cuts to time consuming projects. Why not a Aqualarm Wet Exhaust Overheat Alarm Kit. It monitors the exhaust hose temp like you would in a fighter jet and if it goes above 200'F it gives an audible alarm. Google it.
Because all sorts of nasty things can happen when you're not directly measuring the flowing AF temp.
If the AF pump were to give up the ghost, no hot AF would reach the heat exchanger and the wet exhaust would actually cool down. You wouldn't have a high temp. alarm from the Wet Exhaust Overheat Alarm but the internals of the engine would be seriously overheating.
Something which beats an Aqualarm Wet Exhaust Overheat Alarm Kit is the Aqualarm Water Flow Switch which informs you immediately when sea water stops flowing :
I did not understand what you meant by ghost. But I understood the rest of it. The water if that's the coolant doesn't get warmed up so it goes in cold with the exhaust and it appears the exhaust is colder then it is. Impressive, R Johnston.
I have this female 3/8” mpt threaded port before the thermostat on the housing that I was thinking a that’s about using for the cooling water sensor. I am not at the boat so I don’t know where the existing sensor is located but I am assuming it is on the side of the engine block and might be a better place but worry about getting a air bubble in it at the tee if I would to add another sensor.
I did a similar modification on my Yanmar diesel, adding a analog oil pressure and water temp sensor that goes to a digital gauge,. Look at the water pump and the oil filter area for aux plugs. They typically have a square or allen key head. Then you will probably need male to female adaptors to make it fit.
Oh stop it, you're making me blush now.
I don't understand what you meant that I meant with the word "ghost". Didn't see the word "ghost" anywhere in my post #6 but then again, I've often been told I'm blind in one eye and can't see out of the other. If you could explain ?
Hopefully you're on to something.
First question is "Where does that hose go to" and does it see a constant flow ? If it does, you're in luck.
The next question is the thread size of your temp. sensor ?
If this is worth pursuing, insert a close 3/8" nipple into the fitting :
Using an appropriately sized tee (to match the temp. sensor) and reducer bushing, the whole mess of fittings could be made quite compact for the location.
Still a number of "ifs" to be answered if this is to work. Good luck.
One of the most tedious parts of adding the oil and water temp sensors was figuring out the thread pipe size. Although the OP's International engine is most likely NPT taper thread, even then, determining the thread size and diameter are not obvious. In other words, if you measure the male threads on a sensor and its about 1/4" that doesnt mean its 1/4" NPT. There are some handy charts you can download that will give a good clue of the NPT size based on inside or outside diameter. As far as pitch, get a cheap thread gauge. My Yanmar had one NPT and one BSP thread that I used for the sensors. That was its own little puzzle.
Maybe off topic here but I think some of the 5411's are raw water cooled. If so, does that mean it would need a different temperature sensor that would signal the audible alarm more in line with the lower temperature a salt water cooled engine would run at?
I know the fitting you mean. Oil ?
I had a 1/8" NPT tap in my toolbox and threaded the BSP fitting to 1/8" NPT and called it a day. Nice snug fit.
I think it was for the oil pressure. With enough tape or dope NPT to BSP will work. Or so Im told.
Oh, I was wondering about 4511 runs 135°F and 150°F and the sensor is set at 200° F I am in fresh water.
Page 12 of owners manual
An alarm switch shouldn't activate at normal operating temps (135°F–150°F). It is there to warn you if the engine is actively overheating, so a trigger point around 200°F provides a safety margin before catastrophic engine damage occurs.
An alarm switch shouldn't activate at normal operating temps (135°F–150°F). It is there to warn you if the engine is actively overheating, so a trigger point around 200°F provides a safety margin before catastrophic engine damage occurs.
I've got this nagging feeling that it would always leak over time because of the imperfect mating between the threads. Also, with all that tape in there you're not going to get a good ground. You'd have to run a bit of a detour to a good ground. Seeing as how my sensor is completely insulated from a ground by the hoses, I cheated and ran a soldered ground off of the brass tee and back to the block :