Thread: New Oil Pump

Originally Posted by 101RRS

Why? If the current pump does the job with no reported failures why do you need to change it and possibly bringing in issues elsewhere in the system.

A solution looking for a problem that is not there.

I can’t believe you are unaware of all the spun main bearings and snapping cranks happening to the V6 Diesel engines worldwide.

While a 100% known reason for the failures has not been established, at least not been made public, low oil pressure is not going to be a good thing for any engine.

If the information on the uprated pump website is correct, should you rather have the engine oil pressure at 1.8 bar or 4.0 bar?

I know I’d want 4.0 bar.

Originally Posted by loanrangie

I think there are enough reports of them failing shortly are belt change even from LR workshops so for the $182 for the upgraded pump its not worth the risk.

I agree - my indies will not change cam belts on engines with the old oil pumps unless they upgraded to the new version. I think most of the Indies that post on this forum are the same. People can put their head in the sand if they want.

Also why did Ford not continue with the older pumps if they were OK? They brought in the new reinforced oil pumps but allocated the same part number as the old unreinforced pump so when the older ones were being replaced the new style pump would always be provided.

Garry

Originally Posted by kelvo

I can’t believe you are unaware of all the spun main bearings and snapping cranks happening to the V6 Diesel engines worldwide.

While a 100% known reason for the failures has not been established, at least not been made public, low oil pressure is not going to be a good thing for any engine.

If the information on the uprated pump website is correct, should you rather have the engine oil pressure at 1.8 bar or 4.0 bar?

I know I’d want 4.0 bar.

But how reliable is the uprated pump?
0 bar from a failed pump.

From the land of Lada's, i dont think so.

Originally Posted by SeanC

But how reliable is the uprated pump?
0 bar from a failed pump.

I wouldn't even dream of not putting in the genuine part,to much risk.

Would it actually reduce bearing failures?

No one would know,and it could cause other issues.

Originally Posted by kelvo

I can’t believe you are unaware of all the spun main bearings and snapping cranks happening to the V6 Diesel engines worldwide.

Totally aware of these issues but they have nothing to do with low oil pressure - design combined with poor maintenance in most cases.

Can you show me where this is caused by low oil pressure? Links? In fact can you show me where there is a systemic issue with low oil pressure in these issue.

Following your logic, 8 bar would be better, what about 10 or 20 bar - after all more is better rather than what level is appropriate.

Originally Posted by 101RRS

Totally aware of these issues but they have nothing to do with low oil pressure - design combined with poor maintenance in most cases.

Can you show me where this is caused by low oil pressure?

Anecdotal evidence is the crank bearing failure in my 2016 SDV6 last week. The car had 72k kms, and had received oil and filter every 12k kms from new at LR dealer.
About 15 minutes after the engine failed, beside the road, I removed the oil filler cap and used a torch to look inside. It was dry. No sign of oil. I don't expect it to drain that fast.
The car been serviced by LR one week prior, and the dash menu indicated the correct oil level.
I suspect but can't prove an oil pump problem as the root cause.
Replacing the oil pump at same time as timing belt is relatively cheap insurance.

Originally Posted by 101RRS

Totally aware of these issues but they have nothing to do with low oil pressure - design combined with poor maintenance in most cases.

Can you show me where design combined with poor maintenance in most cases is the cause? Links? There are at least three failures that I know of on vehicles with full dealer service records, with one of those having oil and filter changes in between scheduled services. So while poor maintenance is not good these failures are happening to well maintained vehicles.

Originally Posted by 101RRS

Can you show me where this is caused by low oil pressure? Links? In fact can you show me where there is a systemic issue with low oil pressure in these issue

I have no proof that low oil pressure is the cause. But failures of components (Crank main bearings and crankshafts) that rely on good lubrication could point to poor or low oil pressure. If the oil pump pressure relief is set for 4.5 bar, as it is with these engines, and the pump is only producing 1.5 bar (Information quoted by the uprated pump supplier) that is only 33% of maximum pressure.

Originally Posted by 101RRS

Following your logic, 8 bar would be better, what about 10 or 20 bar - after all more is better rather than what level is appropriate.

Given the oil pump pressure relief is set for 4.5 bar running above this is going to impact oil seals, so running 8, 10 or 20 bar is just a silly comment.