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Oil pump nightmare 04 LR2 4.6

Old May 11, 2021 | 02:25 PM
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Default Oil pump nightmare 04 LR2 4.6



This is what was left of the oil pump
 

Last edited by Greg Salmon; May 13, 2021 at 10:23 PM.
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Old May 11, 2021 | 02:29 PM
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Originally Posted by Greg Salmon
has anyone ever had, or seen this happen? I've heard of the oil pumps going bad. But not blow out the housing
 
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Old May 11, 2021 | 07:16 PM
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That's not a nightmare, just a failure. Replace it and you're done. Or is there something else you're not telling or showing us? If you scroll down to view related threads there is at least one instance of the same failure on a Discovery.
 
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Old May 12, 2021 | 12:01 AM
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Default Oil pump nightmare

Originally Posted by flybd5
That's not a nightmare, just a failure. Replace it and you're done. Or is there something else you're not telling or showing us? If you scroll down to view related threads there is at least one instance of the same failure on a Discovery.
no that's all of it. Well I'll of course put a timing sett in it, while I'm in there of coarse. But ya I'm hoping it's going to be ok when it's fixed. I saw the oil light light up an killed the motor instantly. Crossing my fingers all the bearings are ok
 
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Old May 12, 2021 | 09:44 AM
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Originally Posted by Greg Salmon
no that's all of it. Well I'll of course put a timing sett in it, while I'm in there of coarse. But ya I'm hoping it's going to be ok when it's fixed. I saw the oil light light up an killed the motor instantly. Crossing my fingers all the bearings are ok
Bummer. But in all honesty, unless the motor was at idle or very close to it you might have scuffed the bearings a bit... it's hard to catch that fast enough. Synthetic oil would certainly have helped there, as would maybe some engine oil wear additives.
 
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Old May 12, 2021 | 11:15 AM
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Default Oil pump

I. Only run full synthetic, as well as a zinc additive. But yes I was on the freeway. An with an idiot light it's usually to late when you see the light. Would it be wise to pull a rod cap an look at a bearing as well as a main cap to look at a main bearing while pan is off
 
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Old May 12, 2021 | 12:28 PM
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Originally Posted by Greg Salmon
I. Only run full synthetic, as well as a zinc additive. But yes I was on the freeway. An with an idiot light it's usually to late when you see the light. Would it be wise to pull a rod cap an look at a bearing as well as a main cap to look at a main bearing while pan is off
Maybe. Need to check out the service manual and look at bolt torque patterns, see if it's just a simple on/off or if you have to re-torque all the other mains. Also see if bolts can be re-used. Modern engines are pretty finely engineered, so those details would matter for bottom-end stuff.

You'd also want to look at how the oil flows in the galleries, hopefully the manual depicts that, would be best to check the rod and main furthest downstream.

Some slight visible wear can be normal on bearings, they may not be mirror-smooth and that might be OK. Any sign of copper showing through is bad. You can google it.

If it were me I'd probably talk to my indie mechanic, see what he thinks. Probably have him do it... if won't touch it, that's a hint.

Synth + zinc sounds promising, that might hold up for a couple seconds.
 

Last edited by merlinj79; May 12, 2021 at 12:33 PM.
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Old May 13, 2021 | 10:20 PM
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Default Oil pump

Originally Posted by merlinj79
Maybe. Need to check out the service manual and look at bolt torque patterns, see if it's just a simple on/off or if you have to re-torque all the other mains. Also see if bolts can be re-used. Modern engines are pretty finely engineered, so those details would matter for bottom-end stuff.

You'd also want to look at how the oil flows in the galleries, hopefully the manual depicts that, would be best to check the rod and main furthest downstream.

Some slight visible wear can be normal on bearings, they may not be mirror-smooth and that might be OK. Any sign of copper showing through is bad. You can google it.

If it were me I'd probably talk to my indie mechanic, see what he thinks. Probably have him do it... if won't touch it, that's a hint.

Synth + zinc sounds promising, that might hold up for a couple seconds.
not a chance, I would never pay anyone to do something I'm well capable of doing myself. Not my first BBQ, an I never run off half cocked. I always research an educate myself if it's something I have never worked with b4

Here is what's left of the oil pump after I took the front cover off
 
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Old May 13, 2021 | 10:23 PM
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Ouch. Drain the oil through a fine mesh and see what's floating in there. With that kind of damage there's bound to me metal in the oil.
 
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Old May 15, 2021 | 12:51 AM
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Default Oil pump

Originally Posted by flybd5
Ouch. Drain the oil through a fine mesh and see what's floating in there. With that kind of damage there's bound to me metal in the oil.
believe it or not, there was not 1 trace of any metal in the motor. I even cut open the filter an checked.
 
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