[T3] Leak Down Test and Rich Running

[Max Welton]

When doing the leakdown test, listen for the sound of leaking air. You should be able to tell if the leakage is rings, intake or exhaust valves depending on whether the sound is at the oil-filler, air-cleaner or exhaust system.

One of the reasons a leakdown is so useful is that the engine is quiet enough to hear these things.

Max Welton
http://www.maxwelton2k.net/


--- On Wed, 11/2/11, Jim Adney <jadney at vwtype3.org> wrote:

> From: Jim Adney <jadney at vwtype3.org>
> Subject: Re: [T3] Leak Down Test and Rich Running
> To: type3 at vwtype3.org
> Date: Wednesday, November 2, 2011, 11:42 PM
> Jeremy,
> 
> It would help us a lot if you would break your messages
> into 
> paragraphs. I can read it your way, but it's much harder to
> grasp.
> 
> Okay, suggestions:
> 
> I think supposing problems with #2 causing problems with #4
> might be 
> overthinking this, but you might want to look at the lift
> on the #2 
> rockers, to make sure they look about right. (Compare with
> #1.) Do 
> this since #2 and #4 share cam lobes.
> 
> Check the resistances of the 4 spark plug they should all
> be around 
> 1000 Ohms. An open resistor in the SP connector can
> certainly cause 
> the problem you're having.
> 
> Don't get too concerned about the CO. It's not a controlled
> number in 
> '71. The numbers you'll see are good averages, but not
> target 
> numbers. You're right not to tamper with the pressure
> sensor.
> 
> 
> -- 
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
> 
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