Clicking (valves?) when I turn off the engine...

[r3aktor.mk]

When the engine is hot, after turning off i hear two or
three clicks, the noise is coming from the camshaft cover.
This is not happening when the engine is cold.
Yesterday, i pushed the engine harder than usual and i heard its clicking when idling.
As i turned it off it clicked maybe 10 times.
I suspect its the valves.
This morning everithing was normal
I use 10w40 oil, its recently changed.
My car has 145.000km ,could it be the timing chain because
its rattling.
Timing is slightly advanced from the distributor, because of the LPG, I drive it maybe a year that way,
but i noticed this things recently.

Anyone had a similar problem?

 

[frank]

are you sure its not just the thermal contraction as the metal parts are cooling down ?

 

[r3aktor.mk]

are you sure its not just the thermal contraction as the metal parts are cooling down ?

Nope.
Im sure its clicking metal on metal, when the crankshaft is still turning from the inertia.

 

[frank]

its worth checking the chains then eh, only a 10 min job if the cam cover screws are,nt seized

 

[r3aktor.mk]

You mean to look if they are loose?

 

[frank]

You mean to look if they are loose?

check the condition of the chains and top tensioner

 

[r3aktor.mk]

will do

 

[r3aktor.mk]

meh, the bolts are seized, sprayed them with wd40
Meantime here is how it sounds when turned off, note the clicks at the end

 

[baguete]

These are not clicks, they are big knocks

 

[r3aktor.mk]

it only happens when the engine is hot and oil is thin.
I know it sounds like crankshaft bearings ,but the video is from inside and the sound is normalized so you can hear it

 

[baguete]

it only happens when the engine is hot and oil is thin.
I know it sounds like crankshaft bearings ,but the video is from inside and the sound is normalized so you can hear it

Well, i had a similar noise on my 1.0, like big end bearings, but only when the engine was hot but stopped, then restarted after a couple of minutes, after some seconds the noise disappears...

 

[r3aktor.mk]

Thats what confuses me, there is no noise when i start it or while the engine is running, only when stopped.
Ill post another wideo tomorrow.

 

[r3aktor.mk]

here is vdeo from under the bonnet

 

[frank]

possibly the clutch centre ? how long does the oil light take to go out in the morning ?

 

[r3aktor.mk]

possibly the clutch centre ? how long does the oil light take to go out in the morning ?

2-3 seconds the most.
What do you mean with clutch centre Frank?
I had a ugly vibrations when i cold started in the mornings at -15 c.

Thanks for the reply.

 

[frank]

the cushdrive springs tend to go sloppy mate, and that allows the clutch centre to float and rattle

 

[r3aktor.mk]

the cushdrive springs tend to go sloppy mate, and that allows the clutch centre to float and rattle

You were right!
I turned off with the clutch pressed, and there was absolutely no clicking.
And because the springs are broken, when i shift gears when driving it makes sound like "dupp..." if i dont match the rpm.
Anyway, at least I know what is the problem and im happy

Problem solved thanks to Frank.

 

[Guy]

Just out of interest, what grade oil do you use if you have -15 C regularly?

 

[r3aktor.mk]

Just out of interest, what grade oil do you use if you have -15 C regularly?

I use 10w40, here in Macedonia, 2 weeks ago the temperature was -22 C, but the last summer the daily temperatures were +45 C in Skopje.
For the next oil i think getting this
http://www.liqui-moly.de/liquimoly/produktdb.nsf/id/en_3863.html?OpenDocument&land=DE

 

[Guy]

That's cold! I'd definitely switch to a 5w30 for winter. A 10w40 is fine for hot weather .