Omega 2.5V6 ticking

Just in case someone has a crystal ball working or has come across this
before

I can hear a metallic ticking from the nearside bank towards the top,
it sounds as if it's the middle cylinder and at the exhaust side but it
could be echoing from somewhere else. It sounds as if it's about every
other rotation of the engine, about 3 ticks a second when idling.

I know it's got hydraulic tappets so they shouldn't be ticking once the
oil pressure has got up and I can't see one cylinder pinking without
the engine management light coming on.

I've got to replace the cambelt/idlers soon and wondered if anyone had
any idea of what could be causing this. Do cam followers break and if
so can they be replaced or is it a new cylinder head?

 

Is the idle smooth? Just wondering about a broken valve spring?

 

Yes it seems to be, wouldn't the piston be smashing into the valve
then?

 

Nope. methinks you are looking at a faulty hydraulic tappet. Mined (sp?)
you, I would change the oil first. After that I would probably ignore
the noise. PROVIDED that it did not orignate from the timimg belt area.
Dave

 

Spring just breaks a coil off so still shuts before piston gets there.

 

No it's definitely not from the cambelt area. I can't hear it with the
bonnet closed but my neighbour says it's been doing it for ages
(several years maybe) so I think it's pretty safe to ignore it

Thanks.

 

I had visions of the broken end winding itself down through the other
half but there probably isn't that much clearance between coils.

Thanks for the advice. I think I'll just ignore it for now.

 

Mines ticks as well and has done for a couple of years. When I lift the
bonnet I can't here it. I was told that the egr valve is prone to ticking as
well (drivers side above the exhaust manifold a round type thing with a
corrugated metal pipe at the base and a wiring connector on the top.)

 

I can only hear mine ticking with the bonnet up and it's coming from
the other side of the engine to the egr valve but thanks for the
suggestion.

 

My 2.5 V6 had this kind of ticking noise when I bought it, i assumed it
was a lazy lifter & left it. It was still ticking much the same 5 years
& 70,000 miles later when I sold it.