Quizzes & Puzzles1 min ago
noisey fiesta engine
hi,ive got a s reg fiesta 1.25 zetec with noisey engine it sounds like a rattle like the tappets but is starting to get worse,now under idling and under acceleration,this all started when engine ran out of oil,was replaced but only with normal oil not zetec oil,seems to also burn alot of oil but no blue smoke? any ideas?
Answers
1 to 9 of 9
Best Answer
No best answer has yet been selected by seabasss. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.
First question must be, why did it run out of oil? Does it have a leak and , if so, has it been fixed??
If it ran out of oil and you kept driving then you may well have damaged the "big end" bearings. The connecting rods connect the pistons with the crankshaft and where they meet the crankshaft is the "big end". This has bearing "shells" and needs to be constantly fed with oil to prevent damage. If you ran for long without oil then these will be damaged and the engine will rattle badly - worse when accelerating as you are loading the engine.
If this is the case then it is a very bad thing!! Costly (time and money) to repair, it may be cheaper to have an exchange engine fitted.
The other option is that you simply need more oil in. Have you checked the level with the car on level ground and before running it (so all the oil is drained into the sump)? The valve tappets in those engines require oil pressure to work properly or they rattle badly. If you have too little oil (and thus low oil pressure) then they rattle like mad. Check the oil level and top up if necessary.
If it ran out of oil and you kept driving then you may well have damaged the "big end" bearings. The connecting rods connect the pistons with the crankshaft and where they meet the crankshaft is the "big end". This has bearing "shells" and needs to be constantly fed with oil to prevent damage. If you ran for long without oil then these will be damaged and the engine will rattle badly - worse when accelerating as you are loading the engine.
If this is the case then it is a very bad thing!! Costly (time and money) to repair, it may be cheaper to have an exchange engine fitted.
The other option is that you simply need more oil in. Have you checked the level with the car on level ground and before running it (so all the oil is drained into the sump)? The valve tappets in those engines require oil pressure to work properly or they rattle badly. If you have too little oil (and thus low oil pressure) then they rattle like mad. Check the oil level and top up if necessary.
These engines do use a lot of oil.
You do have to check them much more often than almost any other engine, it's a good engine, but does suffer from this one flaw.
As with any engine, once it has run out of oil the chances of it not sustaining any damage are very remote. Unfortunately it does sound like bearing damage.
You do have to check them much more often than almost any other engine, it's a good engine, but does suffer from this one flaw.
As with any engine, once it has run out of oil the chances of it not sustaining any damage are very remote. Unfortunately it does sound like bearing damage.
1 to 9 of 9
Latest Posts
Crosswords1 min ago
Politics7 mins ago
Crosswords9 mins ago
Merci Beaucoup Pour Rien Le Francais
News26 mins ago
Related Questions
Sorry, we can't find any related questions. Try using the search bar at the top of the page to search for some keywords, or choose a topic and submit your own question.