Hi

 

My son has a 2020 fiesta 1.0l st line 22k miles serviced etc. Got it last year got the sump off to check the oil pick all clear. I now want to put it in to get the timing chain and oil pump wet belt replaced which should hopefully mean small likelihood of any problems from there in the next 3 years or so.

 

was wondering what else should I get done when all that is going on and access is easier such as water pump replacement which I think is different to the non MHEV engines?

 

just want to do anything else while the engines been stripped down.

 

cheers

The mileage is a bit low to worry about the chain driven engines to be fair

True but they’re have been cases of the oil pump belts going around the 30k mark so view is why take the risk. The current Ford directive seems to exclude these types of engines from any support re replacing engines if the oil pump wet belt goes as long as service history is maintained.

my view is why take the risk of a scrapped car for the sake of £900 to get them replaced.

The oil pump belt issue is related to the older (cam belt) engine, not chain cam driven, that had automatic transmission.

The auto engine had a balancer shaft instead of an unbalanced flywheel.

The balancer shaft was ran from the oil pump belt and had a tendency to wreck the belt

29 minutes ago, smithgz said:

my view is why take the risk of a scrapped car for the sake of £900 to get them replaced

Change the oil and filter every 12 months minimum, instead of the recommended 24months, and you won't need to worry until about 10 years old or 100,000 miles

The oil pump wet belts on the chain engines do fail if you look at the Facebook groups.  All the teeth strip off them for some reason.

I wouldn't say it's 'common' yet but it's happening more often than I'd feel comfortable with.

Don't think we've had any members on here replace the oil pump belt on a chain engine as a service action so not sure on costs or whether any other parts should be changed.  Aux belt should have been changed at 4 years old.

Must admit I'd be expecting closer to £1500 including service and MOT.  Think I'd rather put that towards a different car without any wetbelts if I was in the same situation.  Each to their own though.

I wouldn't believe everything you read in Facebook.

I wouldn't believe half of what's written on Facebook.  I did give up 'using' car groups years ago but still browse now and then. 

In this case, there is plenty of photographic evidence to back it up.  And owners that don't really understand what's happened, so I doubt they'd be making it up just for likes.

1 hour ago, TomsFocus said:

The oil pump wet belts on the chain engines do fail if you look at the Facebook groups.  All the teeth strip off them for some reason.

I wouldn't say it's 'common' yet but it's happening more often than I'd feel comfortable with.

Don't think we've had any members on here replace the oil pump belt on a chain engine as a service action so not sure on costs or whether any other parts should be changed.  Aux belt should have been changed at 4 years old.

Must admit I'd be expecting closer to £1500 including service and MOT.  Think I'd rather put that towards a different car without any wetbelts if I was in the same situation.  Each to their own though.

Ok so no need to change water pump at the same time. Cost to change is the driver here to get a similar car with specs would costs nearly 14k. Trade in has dropped probs a reflection of the issues. So 900/1000 to change a potential problem is good value for me for a few years use.

costs covers timing chain and wet belt change, oil filter and new oil.

I know there was a problem with Tensioners failing and causing the Oil Pump Belts to fail but I don't know if the Chain Driven MHEV Engines have that set up or not.

My Chain Driven 1.5 with a Balancer Shaft driven from the Crankshaft doesn't.

1 hour ago, smithgz said:

Ok so no need to change water pump at the same time.

I'm not sure where the water pump is on the MHEV.  It's no longer aux driven like it was on the earlier engine.  I'll do some research and get back to you on that one.

So, it looks like the waterpump is at the opposite end of the engine to the timing chain.

It must be run by a belt from the cam but I haven't been able to find a picture showing it.  The aluminum part is the waterpump.  Green is my assumed cam pulley and yellow is my assumed belt run.

Interestingly, the waterpump belt is recommended at 10 years/144k on the Focus MHEV.  But isn't listed on the Fiesta MHEV schedule.

Water pump is driven by the exhaust cam

Thanks Ian.  If only you'd posted that an hour ago.

So presumably there's no need to replace the waterpump at the same time as the timing chain etc?  I'm a bit confused why it says to align the FEAD belt with the waterpump belt on service procedures?

16 hours ago, TomsFocus said:

Thanks Ian.  If only you'd posted that an hour ago.

So presumably there's no need to replace the waterpump at the same time as the timing chain etc?  I'm a bit confused why it says to align the FEAD belt with the waterpump belt on service procedures?

Where did you get that info, I can't see it on PTS. 

3 minutes ago, iantt said:

Where did you get that info, I can't see it on PTS. 

ServiceInfo Checksheets

Bizzare, no idea why it says that. 

I can understand the reaction re the wet belt issue although I have just had mine replaced after 100,000 km and there was no hint of deteriation . But with the later chain after 22000 miles to think of replacing it seems ridiculous. They are meant to last the life of the engine! 

20 minutes ago, Jonathon1 said:

They are meant to last the life of the engine! 

🤣🤣🤣🤣.............. and indeed they do. When the timing chain fails the life of the engine has expired !!

1 hour ago, Jonathon1 said:

I can understand the reaction re the wet belt issue although I have just had mine replaced after 100,000 km and there was no hint of deteriation . But with the later chain after 22000 miles to think of replacing it seems ridiculous. They are meant to last the life of the engine! 

You do realise 100K km's is only 62K miles, don't you?

On 11/12/2024 at 3:57 PM, TomsFocus said:

I wouldn't believe half of what's written on Facebook.  I did give up 'using' car groups years ago but still browse now and then.

Most of the folk on FB spouting supposed knowledge are currently listed as missing from their villages. 😉 

7 minutes ago, mickywrx said:

You do realise 100K km's is only 62K miles, don't you?

 

3 minutes ago, mickywrx said:

Most of the folk on FB spouting supposed knowledge are currently listed as missing from their villages. 😉 

Of course. There have been numerous cases of wet belt failures around this kilométrage, but I thought Ford  had solved this problem by changing to chain  driven, 

12 hours ago, Jonathon1 said:

Of course. There have been numerous cases of wet belt failures around this kilométrage, but I thought Ford  had solved this problem by changing to chain  driven, 

Only the timing belt changed to chain.  They still kept the oil pump belt as a wet belt on the revised engine.

Thanks for info guys so looks like I can leave the water pump just now.

 

"2020 fiesta 1.0l st line 22k miles" 

The panic re oil pump wetbelts is reaching panic point. So much BS regarding this issue.