Valve spring removal installer tool DIY on a 1.8T

[cleoo]

I had to remove some bent valves from a 1.8T and also had to replace them. So I found this tool from Amazon and you can also find a similar tool on ebay. Price is about $40 or less.

This didn’t have any useable instructions for the Audi 1.8T so here’s some pictures for some who want to tackle this.





Use the bearing caps to secure the tool onto the cylinder head.







This is the setting to remove the exhaust valves.







Insert the magnet through the opening and try to grab the keepers while pressing down on the valve springs.



Different setting for the intake valves. Note position. Tighter than the Exhaust valves. You may scratch the corners of the opening which may affect how the cams sit.



Press down slowly to avoid scratching the corners.



The magnet tool is not going to fit so you’ll have to use a pick to get out the two keepers.



You may need to straddle this tool and the cylinder head in order to get some leverage on the tool or else it will rock.

I stuffed some wadded newspaper underneath the valves to prevent them from popping out when pressing down on the tool.

Once you remove the two metal keepers, use a magnet to remove the valve spring then you can push down on the top of the valve to remove it from the bottom.

You can see the valve stem seal. I haven’t tried to replace that. Maybe in a later post.

[Spike00513]

supposedly AMB heads crack. I don't know why, and if it's only some or all of them destined to.
In which case, I wonder if Audi has kept internally a log of affected VIN's or something, as they supposedly do for other things (TSB's, recalls, etc.)
The best quote I've gotten for a used Passat AWM head was $40.
However, I don't know if used heads can be installed straight away, or if a machine shop has to do anything.
Part of sending heads to machine shops is that they also clean them in a hot tank, and assemble with new valve stems.

Last time I searched the valve stem seal part number, the typical different manufacturers popped up. Reinz, Elring, and so on. They were all different colors. IDK why, and if it there is any quality difference.
I'm also not sure about what brand is the best quality regarding other gaskets, such as Head Gasket, valve cover gasket, and liquid sealant.

I'm not sure how to detect a worn valve stem seal (what symptoms it can cause) or what age/miles they tend to fail by. IDK if engine choice plays a role; I've heard people say the S4 V8 can dry them out fast, with it's reputation of being a hot engine. But as a bigger engine in an A4 chassis, there's also less space in it's engine bay (retains heat)

[cleoo]

Decking a used head is probably a good thing but I was putting it on a daily driver. In fact, i got two used cylinder heads from the yard. I just checked to see if the timing belt was intact (supposedly valves weren’t bent and after pulling it off they weren’t).

Had a ruler and laid it flat across certain parts of the head and that was good enough for me.

Bolted it on and that engine has been running for a couple of thousand miles now. No leaks.

Same with the 2nd one.

Both cars had over 150,000miles.

For piece of mind, you can deck it.

[AudiA4_20T]

Yep I used the same tool.

[EuroxS4]

I prefer the c clamp tool from OTC.Holds the valve from coming down.quicker too if you ask me.Just a personal preference I guess.

[cleoo]

Yes I was looking at that C clamp since it only works when you take off the head.
So, less chance of scratching with that C clamp???

Though with this one you can change the valve stem seal with the head on with this one.


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[Spike00513]

I prefer the c clamp tool from OTC.Holds the valve from coming down.quicker too if you ask me.Just a personal preference I guess.

Yes I was looking at that C clamp since it only works when you take off the head.
So, less chance of scratching with that C clamp???

Though with this one you can change the valve stem seal with the head on with this one.

isn't there also a way to do it with an air compressor hooked up in the spark plug hole, to pressurize the combustion chamber and prevent the valve from falling in?

[cleoo]

Yes, I believe that’s right. I’ve seen videos of that being done. I haven’t done it yet.


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[EuroxS4]

Yes you can do it that way but you need to be careful and make sure all the valves are closed.As the air pressure inside the combustion chamber holds the valve up as your changing the valve seal.one wrong move and your pulling the head either way lol.