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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 👍
 
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?
 
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.
 
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
 
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?
 
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!
 
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.
 
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