Hi

I have had my st170 for a bit and there are a few niggles with it the one that I am aiming my attention at is the noisey engine it sounds like the tappets are shot....sounds like my old xr3i from years ago !

I kniow these are supposed to be slightly noisier than other zetecs but my mates one is silent mine has done 80,000 its just hasd an oil change which I thought would of cured it but hasnt !

any ideas if the tappets or lifters tend to wear or what it could be ?? been hearing feeww people mention inklet ? but would this sound as mechanical as tappets ??

scratching my head and its annoying me !!

Also it seems a bit hesitant when putting foot down so could this be linked atall ???

help please would be great !

cheers
Ryan

 

What oil did you put in it when you changed it?

 

my mate that di the interim service used 5w 30 oil which I think is the right one....he said its highly unlikely the tappets but it is definately a mechanical tapping the same as tappets like an older engine just sounds doesnt sound liek you would expect

any ideas ?

as i said it does seem to be hesitant also buthtat could be plugs and leads etc just hate the cvh sounding head ! haha

 

As you already stated the top end is noisey as standard due to solid lifters. The injectors as noisey too. Worst case is the lifters need a re shim but thos should not be needed till after 100k get a feeler blade and check clearance to be sure. Mine is not very tappy to be fair the injectors make the most noise. Hesitation could be coilpack or fuel pump

 

Oh and the inlet can cause ticking if the imrc fails the cogs in the unit get mashed up and click together. Check the inlet switches its runners when you start the car

 

Hello,
I think maybe there is some problem with engine mount motor because few weeks ago i also get this same problem and mechanic told me to change that. so i bought it from here on ebay at cheap price then other and now everything is good.

good luck!!

 

admitidly the injectors are on the noisey side i had a listen last night but still some noise coming from the engine itself it seems

As for the hesitation i think i will see what happens with new plugs and leads i guess

 

The standard leads are very good, better than the aftermarket so called upgraded versions so i would be suprised if these are at fault, buy ford plugs they are the best if not a bit pricey at about £9 a plug, ford parts uk do a good deal on 4 ford OEM plugs for about £25 plus VAT
I doubt its the above, it will be the coilpack or fuel pump, im always suprised to hear of all these ST170 engine problems, apart from the clutch mine has been golden for 3.5years now not a single issue