PDA

View Full Version : Stock valve springs Q's



slideways
12th October 2009, 04:21 PM
Already done some searching, and haven't found any solid info yet.

So what is the max "safe" lift on a 16v with stock valve springs?

Also is it possible to change springs without pulling the head off?

70XIN
12th October 2009, 04:24 PM
The valve-springs themselves aren't really the limiting factor, it's the shim-over-bucket setup that throws shims out and makes a mess of things over a certain amount of lift.

The general rule of thumb (although some crazy kids push it), is not to exceed 9mm lift with standard valvetrain.

70XIN
12th October 2009, 04:25 PM
Oh, and to add to that, YES it's possible to remove springs without removing the head, you need one of the funky bluepoint/snapon tools, as seen in the link below :)

http://www.aeu86.org/index/engine-diy-4age-valve-stem-seals_/cat/9/topic=4156/post=75407

slideways
12th October 2009, 04:39 PM
Good man!!!

I know about the limits of the shim setup, And i'm converting to 1sz solid items. Just wanted to know if I could skimp on springs for now.


CHEEEEEEEEERS:))