hydraulic valve questions???

Andy Andy\'s Adventures

2,820 posts · joined Nov 2002 · 6 Sep 2009, 12:50 pm

#733697

This is in a kombi (type 4) motor. Have some work to do on one with hydraulic lifters.

What's the best way to set them up initially, and once in and installed is there any maintenance on them?
Is there any way to check they are OK?

They are currently set with the adjusting screws all the way in, which seems a bit silly. Can they be backed out and the lifter takes up the slack? Or is there very little lift that they can take up?
When the cylinder is at TDC, there is no clearence, so I assume that is how they are meant to be.

At least with solid lifters you know if the head is dieing 🙂

Thanks for the help.
Richard

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 6 Sep 2009, 9:16 pm

#733787

Richard

maybe ask on Shoptalk

When i had mine - i had an issue and had to redo the setting

Something about VW changing the "official" set up

I "think" you screw the adjuster screw in until it touches and then one more turn

Futue te ipsum!!!

Andy Andy\'s Adventures

2,820 posts · joined Nov 2002 · 6 Sep 2009, 9:53 pm

#733804

Cheers,
I'll do some hunting around. It is detailed in the manual, but I will need to read it again to get a better understanding.

greedy53 Bishop of Volkswagenism

3,062 posts · joined Mar 2006 · 7 Sep 2009, 2:01 am

#733825

try this link comes in handy
http://www.ratwell.com/

👍👍😂🙅🥷😬🤓

Andy Andy\'s Adventures

2,820 posts · joined Nov 2002 · 9 Sep 2009, 10:02 pm

#734357

OK,
Have read the web link a few times, and like the idea of adjusting periodically, but can't say
I fully grasp the concept.

If you have a cylinder at TDC and you adjust the screw on the valve, what happens? Does the lifer adjust to take up the slack with spring pressure alone?

Alternatively, how do you "reset" them if you have no idea where they are set to currently?