7A cams in 3B head - no compression

[Tony Hoffman]

Ben, did you bleed the lifters out prior to installing them? If the lifters
are pulled, and set aside, they will not bleed down and allow the valves to
close fully. I've had this happen on a 16V VW I did. Let it sit for two days
(bled down while working on other projects) and it started right up.

BTW, I do them in a vice, with a small socket.

Tony

On Mon, Jan 31, 2011 at 11:45 AM, Ben Swann <benswann at verizon.net> wrote:

> Bernie,
>
> I read an old post you made:
> http://www.audifans.com/pipermail/200q20v/2001-January/001791.html
>
> It kind of looks like there is simply too much overlap using the 7A intake
> and exhaust
> and I think with new head and all the engine is turning, but not fast
> enough to avoid
> blowing intake right out the exhaust - 3 degrees of overlap is OK for NA,
> but definitely
> not good for a street turbo motor.
>
> I might be OK going with the 7A exhaust when used with the 3B intake.  Then
> there would
> be 0 overlap according to the specs. And that should be perfect!
>
> I don't think the cam followers are the problem.  They are lighter and
> AFAIK have no
> more lift than the original lifters.
>
> I will try the 3Bi/7Ae combination and if that does not work, revert
> completely with
> stock.
>
> I did the swap with reservation, since I've heard a lot of hoopla re. the
> 7A cams, but
> not seen any real (read dyno testing and emissions) results.  Still I'd
> like to try the
> combination.
>
> Ben
>