Cylinder head job on the E34

[Ricky318i]

We have removed the cylinder head to do the whole head gasket set.

The main purpose of this was to replace the valve stem seals. They are leaking oil into the combustion chamber.
Another issue was the injectors and their cleanliness. I will clean them in an ultrasonic bath and test their performance on the ASNU Benzine injectors test bench. That should sort them out.

I will also open the Air Flow meter to see if it shows any signs of wear/dirt.

Below are some pics of the condition of the engine cylinder head, injectors, bore and valves. Inlet valve deposits can be seen on all of the valves, but they aren't so bad. The purpose is to clean all these parts and restore them before assembly.

I will also post pics o the clutch set up when we open the gearbox later on. :confused


































Damaged injector O-ring






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[A.C.SCHNITZER]

We have removed the cylinder head to do the whole head gasket set.

The main purpose of this was to replace the valve stem seals. They are leaking oil into the combustion chamber.
Another issue was the injectors and their cleanliness. I will clean them in an ultrasonic bath and test their performance on the ASNU Benzine injectors test bench. That should sort them out.

I will also open the Air Flow meter to see if it shows any signs of wear/dirt.

Below are some pics of the condition of the engine cylinder head, injectors, bore and valves. Inlet valve deposits can be seen on all of the valves, but they aren't so bad. The purpose is to clean all these parts and restore them before assembly.

I will also post pics o the clutch set up when we open the gearbox later on. :confused


































Damaged injector O-ring






Sent from my Nexus 7 using Tapatalk

Hi 'Ricky318i'

I would like to know the sign of worn valve stem seals, I am suspecting that mine are gone. Secondly are you DIY injector cleaning if not what are the costs of cleaning them with Ultrasonic? Thanks

 

[Ricky318i]

The sign of my valves stem seals being worn, was some light white smoke when idling in traffic and the smell of oil in the exhaust. Also you would get some leakage under a leak down test of a cylinder.

I did my injector cleaning myself since we have the machine here at work. Did it on an ASNU machine and followed their method. The machine has a built-in ultrasonic bath. Also, i flow tested mine to make sure they give the right volume, before and then again after cleaning.

There's someone on Gumtree advertising the cleaning service for R800.

My video before cleaning is here:
[video=youtube]

Did this as well while I'm at it.

All cleaned up
Before:


After:




Result

 

[A.C.SCHNITZER]

Thanks Ricky18, that's awesome, :ty: I like the paint job you did on your valve cover
:clapper:

 

[Twinz]

:coolShake::clapper:

Cover looks really good...well done.

 

[Ricky318i]

Here's a pic of said valve cover installed.


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[A.C.SCHNITZER]

:chef: Awesome :clapper: raise: