Just seen your note as I am new to the site. The drive belts on mk 6 Fiestas are 'elastic' ie they have no adjustment built in apart from some give in the belt itself. The fitting of these belts requires the use of several plastic tools (which are supplied as part of the kit with a genuine Ford belt). There is a set procedure for fitting the belt and if this is not followed to the letter the new belt is likely to fail. The process involves rotating the engine in the normal direction of travel whilst using the plastic tools to guide the belt onto the pulleys. No doubt a hasty emchanic may dispense with this method and just lever it in place. The risk is that it may place strain on the waterpump bearings in the process and cause failure of the waterpump - usually sounds like a rumble from that side of the engine. In which case you have to start all over - new waterpump etc.
Local garage is telling me there is no water pump drive belt adjustment on my sons Mk6 1.4 Fiesta engine so they forced the belt back onto the new water pump drive pulleys after installing a new water pump, now only 5 days later a terrible noise coming from the drivers side of engine & the car is again unuseable.
This car is only three years old & has only done 12,000 miles from new, so it's very disappointing to have these issues already.
To my way of thinking the garage has done something very wrong when they fitted the new water pump, I've never heard of a water pump drive belt that is not adjustable, now the car is broken down & stuck at side of the road waiting for collection again !
Please could anybody tell what the garage are doing wrong, how should the water pump belt be fitted correctly ??
Does the water pump belt also drive something else ie: alternator, AC pump or power steering pump ???
What is the likely cause of all this noise, I think they damaged the belt by forcing it over the water pump pulleys & now it has probably snapped.
Trouble is I'm abroad & can't look at the car myself, my son is not mechanically minded so I am at the mercy of the local village garage !!!
Any feedback / help would be greatly appreciated....thanks, Andy.