MD diesel: Dual mass flywheel?

[AlanM]

Originally Posted by AlCan

Hi Alan,

Just watched another Alan Howat video, where he investigates a seized high-milage MD engine. Looks like you can add a few more ticking bombs to your list, including the cam-cam chain tensioner and upper guide (both items, but upper guide seems the worst).

That seems to get seriously chewed away until the ends of it even fall off. Not sure if it's an oil pressure driven tensioner as it has a spring in it, which has also been known to break...Worse perhaps, is that a lot of this wear metal ends up going through the oil pump, which is an unusual vane-style pump, and doesn't seem to handle this at all well.

In this case, it appears that the oil pump itself jammed temporarily, which caused the oil pump drive chain to snap in two places - not sure how that could happen, but it did. And evidently also caused part of one of the lower engine casings to fracture...

Then, the rear (ok, flywheel end) main seized.

I guess the driver didn't take any notice of the low oil pressure warnings - does that include chimes? Alan doesn't seem to go into that directly - or whether or not they actually worked - but maybe there was a loyalty issue.

All this brings me to the question - is this no longer a PSA engine? I see in the video FoMoCo cast into the head or somewhere in that area.

Do you happen to know if the TXBA/B series engines also have chain driven oil pumps?

For sure, I'm going to stick to MC models until that's no longer viable.

It's definitely a PSA/Ford engine. There's Citroen and Peugeot badges cast into it near the FoMoCo logo.

The timing chain time bomb applies to the earlier Mondeos too. It's basically a matter of how well maintained the car is. If oil changes are neglected the timing chain will wear excessively and chew out the tensioner.