T6 Ford Ranger home servicing

[Don 130]

My daughter has arrived home for Christmas with a request for dad to service the Ranger. I haven't done this one before. Can anyone provide clues as to torque settings for sump plug, oil filter housing, and is the following bulletin accurate?

Technical Bulletin
In case you missed our December Extra Bulletin…

Service warning: Mazda BT-50 / Ford Ranger new generation 5cyl diesel models UP0YF1 – When draining the oil, ensure that the total drain time does not exceed 10 minutes.
bt50.5.png
Field reports indicated that there may be an issue with the variable-flow oil pump fitted to Mazda’s new generation BT-50, 5 cylinder common rail diesel engine.


A new feature in the BT-50’s engine is the variable-flow oil pump that helps maximize fuel efficiency. Rather than the conventional fixed-flow gear drive oil pump, it is accomplished with a chain driven oil pump located in the sump that matches the oil supply to the engine load. The variable-flow pump changes its capacity based on the engine’s demand for oil, by rotating the eccentric outer ring. This prevents wasting energy to pump oil that is not required to maintain engine operation.

These variable-flow pumps are much like power steering pumps, using vane elements in their design with the added ability to control flow rates at varied engine speeds. When the vehicle has the oil drained for an extended amount of time, the oil drains not only from the sump, but internally from the pump assembly. The vane type design appears to be less tolerable to being allowed to drain out and recover from that state thereafter.

Reports to Autodata are that if the engine oil and filter are changed in service and the oil is left to drain longer than 10 minutes, the oil pump may fail to prime and leave the engine in a critical no lubrication situation. Attempts to prime the pump by increasing the rpm fails to solve the problem, and will lead to component failure from lack of lubrication.

Any other tips gratefully accepted.
Don.

[DeanoH]

........................ if the engine oil and filter are changed in service and the oil is left to drain longer than 10 minutes, the oil pump may fail to prime and leave the engine in a critical no lubrication situation. Attempts to prime the pump by increasing the rpm fails to solve the problem, and will lead to component failure from lack of lubrication.
.

What a wonderful design concept. Makes you wonder if intelligence is a pre requisite for automotive engineers these days.

Any other tips gratefully accepted.
Don.

A fire extinguisher would make a good Xmas present.

Deano

[Don 130]

What a wonderful design concept. Makes you wonder if intelligence is a pre requisite for automotive engineers these days.



A fire extinguisher would make a good Xmas present.

Deano

Yes it sounds crazy that this could happen in this day and age, but there are a great many mentions of this sort of advice regarding these engines, so I think it's probably true, but I'd like confirmation from our in house experts if possible.
I think if the engine seizes due to lack of oil, a fire extinguisher wouldn't be much help.
Don.

[bsperka]

True.
I've read about this on quite a few sites, including filter sites - eg Ryco warns about it.
You need to replace the sump plug when the oil starts to drip. About 3 minutes after dropping the plug. And put the new oil in within 10 minutes. The oil pump can't prime itself if the oil drains out. If the light doesn't go out quickly on start, don't rev it. This won't work.
This is why some mechanics refuse to work on the engine.
I've also found out how to prime the pump if you bugger it up.
Disclaimer - I don't have a BT-50 yet. Waiting for the BIL to get another vehicle first, so only online research.
Another thing to check - the water hose on the passenger side of the engine under the fuel filter can rub against a fuel line and the water is lost quickly - one dead engine.

[DeanoH]

........................... a fire extinguisher wouldn't be much help.
Don.

Ford Ranger and Mazda BT 50 utes catch fire in long grass.


But a thoughtful gift none the less

Deano

[Don 130]

Ford Ranger and Mazda BT 50 utes catch fire in long grass.


But a thoughtful gift none the less

Deano

That's the more recent ones. Hers is not affected by the recall
Don.

[AK83]

What a wonderful design concept. Makes you wonder if intelligence is a pre requisite for automotive engineers these days.



...

Irrespective of whether it's a requirement or not, the simple fact is that all humans have some, albeit in varying amounts of capacity.
What I think is the pertinent question tho is do those engineers use it wisely ... or even at all?

Lots of intelligence never used in the field of engineering is just a waste of resources.

What I don't get tho with this oil drain time limit thing is when you refill with oil, doesn't the pump fill itself up and/or hold enough or is submersed in enough oil to not have this issue?

With their description of the problem, the implication will therefore equate to not all of the oil is being renewed .. ever!
That is, the oil pump vane needs to retain some of the old oil so that it doesn't fully drain, so that it doesn't then implode/explode .. or whatever it ends up doing to itself.

[rar110]

Would vacuum oil removal work better?

[bsperka]

Would vacuum oil removal work better?

Most probably not. I believe the issue is that the oil in the pump drains out too much or completely, so the pump can't prime itself, due to it's design.

[shanegtr]

This is why some mechanics refuse to work on the engine.

Any mechanic should be able to work within the 10min time frame (Im sure they would still charge a couple of hours for the same job however)