[Mr Bowcat]

Thanks! That's not too far to drive down. Do you know if he uses genuine Ford parts? If he does I'll get in touch.

PM inbound.

 

[_jimmy_]

Just a quick update to my hijack question, we got the 2013 Focus 1.0 Ecoboost done by a specialist in Norfolk, former Ford mechanic gone rogue and now mobile

All genuine Ford parts was around £1,000 for cam belt, oil pump belt, water pump, oil and filter, aux belt and new coolant all done, and so far so good. Definitely shop around and look at independent specialists if you can 👍

 

[Jules59]

The problem is there are several variants of the Dragon engine some with a BIO cambelt, some with camchain, some with a BIO driven oil pump and some with a pump driven off the balancer shaft.
The balancer shafts changed position too.

Maybe the best way is to visit your Ford main dealer and ask what your engine has inside?

 

[Wetherfell]

Maybe the best way is to visit your Ford main dealer and ask what your engine has inside?

Lol, I think in many cases you get better information on forums like this, unless you are fortunate to get hold of the master tech. I've more than once been told in Ford dealerships that the Mk 8 ST is a 4 cylinder!

There are indeed many variations of the Dragon, both n/a and turbo, in different markets, but I think we've pretty much nailed the oil pump belt issue for the Mk 8 ST in this thread.

 

[MarkP80]

There has been an interesting post on a Facebook group. An engine failed due to an issue with the gear driven oil pump, which was a surprise to me. It was hard to make out but it looked like the gear itself had an elastomer insert which had failed

 

[MarkP80]

New part -

Failed part -

 

[MarkP80]

It looks like the oil pump drive gear, located on the crank behind the cam chain gear (I think it drives the balance shaft too)

 

[Jules59]

But why oh why make it like that ?

 

[Jason70]

There has been an interesting post on a Facebook group. An engine failed due to an issue with the gear driven oil pump, which was a surprise to me. It was hard to make out but it looked like the gear itself had an elastomer insert which had failed

I read this post on Facebook and it was on an early car with the chain oil pump. Do you think the later engines with the belt oil pump cars have the same part or is it a totally different design?

 

[MarkP80]

I read this post on Facebook and it was on an early car with the chain oil pump. Do you think the later engines with the belt oil pump cars have the same part or is it a totally different design?

The early engines have -
Chain driven cams
Gear driven oil pump (from the crank) - no chain

Later engines -
Chain driven cams
Belt driven oil pump (from the crank)

So they're totally different parts.
My guess is that the gear has that elastomer for some sort of shock absorber/compliance reason, off the top of my head, unless anyone has any better ideas. Or is it some sort of clutch mechanism (like you get on alternator pulleys?)
As for the alternative belt drive pulley on the crank? I don't know what it looks like so I don't know if it has the same sort of arrangement built in. @Jorg is the guy with access to the parts catalogues!

 

[MarkP80]

But why oh why make it like that ?

No idea. But it would have been better if that was the design for the gear on the pump itself, which at least can be replaced without removing the cam chain, just the sump removal

 

[Wetherfell]

Maybe having the belt driven oil pump is not so bad after all..........

and if they're going to have a gear driven pump, why not stick it on the outside secured by 3 bolts that you could get off in a couple of minutes, like they used to?😀

:

 

[Jason70]

The early engines have -
Chain driven cams
Gear driven oil pump (from the crank) - no chain

Later engines -
Chain driven cams
Belt driven oil pump (from the crank)

So they're totally different parts.
My guess is that the gear has that elastomer for some sort of shock absorber/compliance reason, off the top of my head, unless anyone has any better ideas. Or is it some sort of clutch mechanism (like you get on alternator pulleys?)
As for the alternative belt drive pulley on the crank? I don't know what it looks like so I don't know if it has the same sort of arrangement built in. @Jorg is the guy with access to the parts catalogues!

Thanks for that. It gets even more confusing as the first batch of the new engines which mine is still have a diverter valve (dump valve) according to Mountune. I am just waiting for the day when i get a service and they don't put enough oil in it.

 

[MarkP80]

if they're going to have a gear driven pump, why not stick it on the outside secured by 3 bolts that you could get off in a couple of minutes, like they used to?😀

What a great idea! If only Ford had thought of that.
Oh, hang on...

 

[Wetherfell]

What a great idea! If only Ford had thought of that.
Oh, hang on...

Yep, been there, driven that, changed the oil pump!

Priced it out of curiosity on the Burton Power site, pump £39.90 and gasket £4.25. Plus couple of minutes own time (and optional cuppa and biscuit!).

 

[symonh2000]

I was considering a Mk8 ST as a more sensible but still fun (better handling) alternative to my current M140i, but this thread has put me off.

Our other car is a Mk7 Golf GTI, and that has had a few issues too. Maybe it is just that a lot of modern cars are just rubbish and have idiotic bits of design.

 

[KenL]

@symonh2000 . What will you buy instead?

 

[symonh2000]

I will hang onto the BMW I think and try to sort out the handling as best I can, or I might consider something like the Hyundai I30N performance.

 

[KenL]

A pity as I don't think that this design "issue" has ever been a problem for anyone, or has it?

 

[Keithsson]

A pity as I don't think that this design "issue" has ever been a problem for anyone, or has it?

Yeah, I've been wondering that too. Seems to me to be more of a theoretical issue than a widespread real world issue.