Diff oil level measuring tool?

[shiv.nandak]

Is this the washer you are looking for ?

Are you supposed to replace that gasket? I was told to reuse it and have not had any issues in 6k miles.

 

[Greasemonkey]

I'm pretty sure an O-ring like that will last until the next oil change at 50,000 miles, and probably even another oil change at another 50,000 miles. On the other hand, an O-ring like that only costs a few cents, which is why many dealers always replace them to avoid warranty claims on their work. As long as there isn't a large puddle of oil under the differential, I wouldn't worry.

 

[Logsplitter]

I have 2. One for each diff, so I can’t spare one.
View attachment 7888693

. That’s exactly the tool that the technician used when checking my diff oil levels in South Africa

 

[Greasemonkey]

. That’s exactly the tool that the technician used when checking my diff oil levels in South Africa

If we get the manuals, we will know exactly why we can no longer use these tools.

 

[ECrider]

I have 2. One for each diff, so I can’t spare one.
View attachment 7888693

.308?

 

[Gxgn]

Has anyone found a source for this O ring here in the States? Thanks

 

[Lars]

Has anyone found a source for this O ring here in the States? Thanks

Have you considered your local auto parts store or Amazon if the dealer is out? You may have to bring the old one with you to cross-reference.

 

[etbandit]

When i did my diff fluid change, i assumed i could just fill until it dripped from the fill hole. But that is not the case!! I carefully measured the fluid and it was nowhere near the fill hole. I even added an extra 100-200ml and it was still no where near the fill hole. I didn’t want to add more for the fear of breaking something due to overfilling.

What was amount of oil that was drained and the amount of oil you added back.

We're the amounts drained and refilled the same for the front and rear diffs?

If the diffs were under filled from factory, that may explain why the oil was not at level of the fill hole.

 

[INEOS OG]

Id say this is a minimum not a maximum. I'd fill until it drips from fill hole like every other diff out there. Otherwise if I can squeeze my pinky in the hole and get a drip of 90w on it then it's also good.

Keep in mind this oil is splashing everywhere even at 5mph. So slight variations in oil level will not make a hill of beans difference up or down. Just changing caster from min to max will change how the tool reads.

Fill it till it drips and run with it.

Please do not do this. It is old school thinking (nothing wrong with that usually) but overfilling the diffs in the IG will result in over pressuring the cases unless you opt for old school vented housings which will cause them to leak.

 

[Dokatd]

Please do not do this. It is old school thinking (nothing wrong with that usually) but overfilling the diffs in the IG will result in over pressuring the cases unless you opt for old school vented housings which will cause them to leak.

I'd love to hear your explanation of this. Please site information if you could please.

 

[INEOS OG]

I'd love to hear your explanation of this.

Heat equals friction, friction causes pressure, pressure causes leaks. Your 1990 F250 has an open vent. Your 2024 Grenadier has a slintered vent that is not open and prone to over pressurization when overfilled and when overfilled causes leaks, it is a known issue.

Do a DIY vent or something like this if you choose to be old school. Oh, and don’t a such a millennial unless you know of what you speak.

ARB Differential Breather Kit for INEOS Grenadier by Agile Offroad » Agile Offroad

ARB Differential Breather Kit for INEOS Grenadier by Agile Offroad. Upgrade for malfunctioning factory one-way breather valve known to cause leaks.

agileoffroad.com

 

[Dokatd]

Heat equals friction, friction causes pressure, pressure causes leaks. Your 1990 F250 has an open vent. Your 2024 Grenadier has a slintered vent that is not open and prone to over pressurization when overfilled and when overfilled causes leaks, it is a known issue.

Do a DIY vent or something like this if you choose to be old school. Oh, and don’t a such a millennial unless you know of what you speak.

ARB Differential Breather Kit for INEOS Grenadier by Agile Offroad » Agile Offroad

ARB Differential Breather Kit for INEOS Grenadier by Agile Offroad. Upgrade for malfunctioning factory one-way breather valve known to cause leaks.

agileoffroad.com

I assume you mean sintered vent? Are you familiar with what those are? I assume you're suggesting that the sintered vents get clogged over time since it's allowing air in and out? Sintered vents used as bi directional vents can easily clog to be sure. They are typically best when used as exhaust only. So, yeah if your vent gets clogged you will have issues. Won't matter how much oil you have in your diff. A clogged vent has nothing to do with proper oil level. Unclog your vent as part of regular preventative maintenance and all is fine. Or feel free to add some extensions with or without goofy K&N filters from Pep Boys. Your call, but doesn't change a thing in regards to oil level.

And trust me, I very very much know what I am talking about. You my friend, I'm not so sure about. I'm certainly not sure why you think I am a millennial. I was already a Land Rover tech when many millennials were born.

 

[INEOS OG]

I assume you mean sintered vent? Are you familiar with what those are? I assume you're suggesting that the sintered vents get clogged over time since it's allowing air in and out? Sintered vents used as bi directional vents can easily clog to be sure. They are typically best when used as exhaust only. So, yeah if your vent gets clogged you will have issues. Won't matter how much oil you have in your diff. A clogged vent has nothing to do with proper oil level. Unclog your vent as part of regular preventative maintenance and all is fine. Or feel free to add some extensions with or without goofy K&N filters. Your call, but doesn't change a thing in regards to oil level.

And trust me, I very very much know what I am talking about. You my friend, I'm not so sure about. I'm certainly not sure why you think I am a millennial. I was already a Land Rover tech when many millennials were born.

Best of luck to you.

 

[Dokatd]

Best of luck to you.

No luck needed buddy. No leaks on my diffs either

 

[INEOS OG]

No luck needed buddy. No leaks on my diffs either

There is a flaw in early breathers. I am happy yours is not among them, nonetheless it is a problem.

 

[AWo]

Apparently there is a tool shaped somewhat like an Allen wrench which functions like a dipstick to measure differential oil levels when replacing diff oil. Should be very simple to duplicate. Can the tool be purchased from Ineos? Alternatively, Is there a photograph of the tool floating around showing shape and dimensions so I can fabricate one?

I used a 90 degree bend nail for gearboxes and other stuff, where the full level is not the fill in hole. I just bend it, fill the box accordingly, put the nail parallel on the threads, with the bend part in the oil, check where the oil is, hammer a mark in and store it with a note of what it is used for.

AWo

 

[Logsplitter]

I’ve already posted this but for what it’s worth the Ineos tech in South Africa used the short side of an Allen key to measure proper oil level when I had to have my diff re-filled as I knocked the diff housing causing a slight leak. The diff housing/cover was taken off and re-seated with a gasket then re filled with gear oil. The Tech was a senior guy not the apprentice.

 

[Tom109]

Your 2024 Grenadier has a slintered vent that is not open and prone to over pressurization when overfilled and when overfilled causes leaks, it is a known issue.

I assume you mean sintered vent? Are you familiar with what those are?

Not sure if you have actually checked, but my Grenadier had what looks like poppet valve breathers (spring loaded plunger with seal). I've since replaced them with remote breathers and zero leaks.

 

[Zimm]

Please do not do this. It is old school thinking (nothing wrong with that usually) but overfilling the diffs in the IG will result in over pressuring the cases unless you opt for old school vented housings which will cause them to leak.

eh?

 

[Zimm]

Heat equals friction, friction causes pressure, pressure causes leaks. Your 1990 F250 has an open vent. Your 2024 Grenadier has a slintered vent that is not open and prone to over pressurization when overfilled and when overfilled causes leaks, it is a known issue.

Do a DIY vent or something like this if you choose to be old school. Oh, and don’t a such a millennial unless you know of what you speak.

ARB Differential Breather Kit for INEOS Grenadier by Agile Offroad » Agile Offroad

ARB Differential Breather Kit for INEOS Grenadier by Agile Offroad. Upgrade for malfunctioning factory one-way breather valve known to cause leaks.

agileoffroad.com

i'm corn fused. ....

heat (T) is caused by friction (u) . i can't take an equation and directly substitute friction for heat. and how does friction "cause" pressure, that's heats job? ln(P2/P1) = (ΔHvap/R) * (1/T1 - 1/T2). I'm not seeing friction in here. ironically, diff fluid mitigates friction, as that's why its there in the first place. I'm not certain how 4 more oz of fluid is going to cause friction and therefore heat. The only way more oil could be a functional part of your theory, would be the ΔHvap, but if it really was that much pressure (which its not, btw as more oil would be a heat sink as it touched the casing) that's what the valve is for. so, if your seal is leaking from pressure, its not the fluid, its the breather not working, and more fluid will not cause a breather not to work as it cannot be filled to full or close to it. the location of the fill hole is deliberate. notice its not on the top? its where it is so it cannot be overfilled and prevent any sort of drag or foaming. the gear needs to slosh thru it and spray it, not be submersed in it. plenty of space is maintained.

If they want you to fill below the hole, it's because the oil will expand a little with the temperature, and leak out if opened when warm, if filled to the edge when cold. If you feel a few drips leaking out of the diff hole on the off chance you open the plug when hot, is going to change the crash course the planet is headed on, by all means, buy a special tool to measure. I've given up on saving the planet. I'm sticking with my pinky.