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Does the M13A engine have an oil temp sensor?
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24 Jul 2022 20:12 #244206
by Vandoni
Does the M13A engine have an oil temp sensor? was created by Vandoni
Hey guys, I want to put an oil temp gauge on my dash and don't know if i already have an oil temp sensor in the engine or if i need to buy one, also what do you think i should buy to complete the install? I'll obviously take the car to a competent mechanic since i've never done anything with electricity and don't want to screw up the electronics in the car.
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25 Jul 2022 01:26 #244209
by fordem
Replied by fordem on topic Does the M13A engine have an oil temp sensor?
No, it doesn't have one, automotive engines are rarely fitted with oil temperature measuring systems.
If you're using an electrical oil temperature gauge, you'll need a sensor to match the gauge, if you're using a mechanical gauge it doesn't need a sensor, it will come with a bulb & capillary tube attached.
Having said that, an oil temperature gauge is likely to be of very little value, it won't tell you anything that the coolant temperature gauge isn't already telling you, and the coolant temperature gauge is a more reliable indicator of engine temperature.
If you're using an electrical oil temperature gauge, you'll need a sensor to match the gauge, if you're using a mechanical gauge it doesn't need a sensor, it will come with a bulb & capillary tube attached.
Having said that, an oil temperature gauge is likely to be of very little value, it won't tell you anything that the coolant temperature gauge isn't already telling you, and the coolant temperature gauge is a more reliable indicator of engine temperature.
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25 Jul 2022 09:52 #244212
by Busta
Replied by Busta on topic Does the M13A engine have an oil temp sensor?
i've got to ask why you want one?
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25 Jul 2022 11:51 - 25 Jul 2022 11:52 #244216
by Vandoni
Replied by Vandoni on topic Does the M13A engine have an oil temp sensor?
Seriously? I thought that the oil temp was a better way to check the engine temp because it warms up later compared to the coolant (correct me if i'm wrong, i may have confused the order)
And i wanted to buy that gauge to be able to know oil temp at all times and also for the aestethic since it fits the car well
And i wanted to buy that gauge to be able to know oil temp at all times and also for the aestethic since it fits the car well
Last edit: 25 Jul 2022 11:52 by Vandoni.
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25 Jul 2022 17:42 #244221
by Busta
Replied by Busta on topic Does the M13A engine have an oil temp sensor?
In theory yes but in reality with a modern engine and modern oils it's irrelevant. You can pretty much drive however you like on a cold engine without issue.
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25 Jul 2022 20:35 #244223
by Vandoni
Replied by Vandoni on topic Does the M13A engine have an oil temp sensor?
I believe you and i know that lubrication technology has come a long way since the old times but i'm still worried about thrashing my engine if my internals are cold or not warm enough to expand to fit the right clearances
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25 Jul 2022 21:58 #244224
by Busta
Replied by Busta on topic Does the M13A engine have an oil temp sensor?
Unless you know what the oil temperature should be and what the safe limits are won't you just be giving yourself another thing to worry about? It's the same reason that modern temperature gauges are calibrated to sit exactly the middle over a wide range of running temperatures.
90% of drivers have no concept of warming up an engine and yet even the most neglected modern cars easily clock up hundreds of thousands of miles without any signs of engine wear. A moderately well maintained Jimny will be a pile of brown rust long before the wearing parts of the engine go out of tolerance.
90% of drivers have no concept of warming up an engine and yet even the most neglected modern cars easily clock up hundreds of thousands of miles without any signs of engine wear. A moderately well maintained Jimny will be a pile of brown rust long before the wearing parts of the engine go out of tolerance.
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25 Jul 2022 22:10 - 25 Jul 2022 22:12 #244225
by lightning
Replied by lightning on topic Does the M13A engine have an oil temp sensor?
Our Gen 4 Jimny has a little blue light on the dash that goes out after a short time when the vehicle is driven from cold.
l assume this is an indication of when it's okay to use all the performance, although we never thrash the Jimny anyway. lt's never been near the red line! Not that l think it will do any harm, which it won't, but there seems little point.
l assume this is an indication of when it's okay to use all the performance, although we never thrash the Jimny anyway. lt's never been near the red line! Not that l think it will do any harm, which it won't, but there seems little point.
Last edit: 25 Jul 2022 22:12 by lightning.
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26 Jul 2022 10:34 #244229
by Busta
Replied by Busta on topic Does the M13A engine have an oil temp sensor?
The blue cold engine light is an evolution of the temperature gauge, because manufacturers have realised most drivers don't understand how to read a temperature gauge.
If you never drive your Jimny hard then it is fairly arbitrary. I don't redline mine until it's warm.
If you never drive your Jimny hard then it is fairly arbitrary. I don't redline mine until it's warm.
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26 Jul 2022 10:44 #244231
by Lambert
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
Replied by Lambert on topic Does the M13A engine have an oil temp sensor?
If you have an automatic transmission I can see some benefits in having a temperature gauge for the transmission oil as it gives you a good indication of how hard you are making it work beyond the little light on the dashboard for over temperature and with a guage you can decide to back off a bit especially if you are towing a trailer. Generally though one for engine oil is a bit unnecessary.
Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!
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16 Jan 2023 09:57 #246942
by minsanity
Replied by minsanity on topic Re:Does the M13A engine have an oil temp sensor?
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- Roger Fairclough
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16 Jan 2023 10:23 #246943
by Roger Fairclough
Replied by Roger Fairclough on topic Re:Does the M13A engine have an oil temp sensor?
Oil and water are likely to warm up at similar rates. Ultimately water will likely top out at 90deg.C with oil being higher. When engine testing at Rover we took water up to 105deg.C and sump oil to 120deg.C. Oil will reach 175deg.C before it begins to break down. Forget the oil temp. gauge for the engine and rely on water temp. Yes, the Gen.4 has a little blue light that goes out after about 1Km but the engine hasn't quite reached operating temp. Remember, the engine should reach operating temp if all is well but the radiator shouldn't! It is there to cool the water. Hot water in, cooler water out.
A temp. gauge on an auto box is usually only necessary if you regularly tow heavy loads in high ambient temperatures up steep hills ie you are using high power in low gear. If this is the case, then consider a transmission oil cooler allied to a thermostat.
Roger
A temp. gauge on an auto box is usually only necessary if you regularly tow heavy loads in high ambient temperatures up steep hills ie you are using high power in low gear. If this is the case, then consider a transmission oil cooler allied to a thermostat.
Roger
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