my evo 8 ticking

[johnboy1988]

Ok lads had my evo 8 in with a tick can't find the issue tried new injectors and tappets it also had head gasket leak that's also sorted what ells could be doing the ticking going to do big end barings is there anything else I can look at?

 

[Marty.H]

A bit more info.

Does it speed up with engine RPM.

Does it get any louder when reving.

when is it most noticeable.

Any difference when engine hot or cold.

 

[johnboy1988]

Yes it gets faster when accelerating

 

[johnboy1988]

You can hear when it starts up then gets faster when rpm are up and louder

 

[Marty.H]

Is there any difference fron when engine cold and hot

 

[andyw08]

When you say you replaced the tappets do you mean the lash adjusters? There known for making a ticking sound, does it sound like it's coming from under the rocker cover? You can buy bigger ones, standards ones have a 1mm hole you can get some with 3mm hole which allow more oil to flow

 

[And@fcm]

Get yourself a set of mechanics stethoscope and place it around the engine you'll be able to trace it better and will be more cost effective than just replacing stuff

 

[johnboy1988]

Am a bit late for that lol am £990 in parts I just waiting on bearings for around the crank try that as they were scored my hydraulic lifters are uprated the ticking sounds top end but it's been total striped and I had head sent away it got skimmed and it's all been tested all sound just going to be stuck if the bearings don't solve it

 

[3gan]

there is a bracket at the back of the engine with a cylinder shape unit attached and it plugs into the loom
that unit can cause a ticking sound and it stopped when we removed the cable
what it's for I don't remember sorry but it's junked when rebuilds are done probably an environmentally friendly device

 

[johnboy1988]

So if it's that it can just be unplugged or should it be replaced?

 

[3gan]

it's under the inlet manifold
andy above my comment is knowledgeable he may know what it's for

 

[johnboy1988]

My 8 is in the garage as it's getting the big end bearings done but yes ticking sounds about manifold area so if someone could shed light if it's ok to unplug or if it's needed