Over reving and knocking

Post by **pompey** » 27 Feb 2006, 09:07

I have a 1.7 diesel and this morning on the way to work i heard a loud knocking from the engine.

When I stopped and lifted the engine hatch i could hear a hissing but no steam. Oil ok, water ok, temp ok.

When i rev the engine the knocking comes back and it over revs for about 5 secs and then goes back to idle.......any ideas what it might be?

Many thanks
Desparate from Portsmouth

Post by **Mocki** » 27 Feb 2006, 09:52

could be a vacume pipe, check the one that goes to the brake servo, it will affect the timing i think, but i dont "do" diesels, so might be wrong.....

Post by **banana** » 27 Feb 2006, 11:08

Well it sounds like the problem I has last week. Which turned out to be very low oil making my tappets bang away. Not only that but it would over rev like yours. So it could be oil stravation of some sort.

Post by **pompey** » 27 Feb 2006, 11:23

thanks guys, think im gonna have to finish work early and have a closer look.......really hope its only one of the above

Post by **Flibbertigibbet** » 27 Feb 2006, 19:49

not sure about knoking noises but chicken like clucking noises are usually cv joints......opps sorry twice in a matter of days I have posted in this section......ignore me.............if you dare

Post by **Cate** » 27 Feb 2006, 19:53

My CV sounded more clunky than clucky.

Post by **Flibbertigibbet** » 27 Feb 2006, 20:03

Nah is very chicken like ....your c.v.'s were probably just having a laff

Post by **Cate** » 27 Feb 2006, 20:08

But this was a 4wd front cv, definately clunky!

Post by **pompey** » 28 Feb 2006, 08:01

fanx cate......no chickens........apparently i have an oil pressure regulater and it had stuck due to the cold weather!!!!!!!!!!!!!!!!!!!!!!! all sorted now so back to sounding like a kitten.......well a kitten in a microwave anyways

Many fanx again for all your help

Stay safe
Sean

www.seanwhite.co.uk