Problems after cambelt change?

Question

hello !

im wondering if anyone could give me some advice on my situation

i have a ford fiesta 1999 with the 1.25 zetec with 49.000 miles

i have just had a cam belt change with all the tensioners and the water pump etc and also the fan belt

and now im having problems! it will start and run and idle okish but not like before the cambelt change, its producing white smoke and if i rev it hard it will throw out loads of smoke and a eggy unburnt fuel smell,also the idle will randomly drop time to time... the exhaust is blowing quite badly at the backbox but it was already like that...

something isnt right i thought it might be the lambda sensor but its not throwing the engine management light at me?

i went back to the garage and they said they would re check the belts for me so maybe its something to do with that as it is a big coincidence as it never missed a beat before hand

please let me know if you have any ideas or advice

thank you !

matt

Answer 1

It sounds like the garage made a mistake with the engine timing, and set it with number 4 cylinder as TDC, instead of number 1 Cylinder which has put you timing out by 90 degrees.

On a 4 cylinder engine Numbers 1 and 4 cylinder come to TDC at the same time, but Number 1 cylinder has to fire first., a fraction of a second, before number 4 fires.

Answer 2

Sounded like you really know what you're doing here. Go back and turn the crankshaft to "Top Dead Center" then check the marks on the camshaft see if you have it in the right position?

Answer 3

You have already taken the only reasonable advice there is to give "back to the garage".