Re: [tech 16v] timing and compression

["balance" <BALANCEPERF@prodigy.net>]

Ok -here's the deal.

Assuming all is well with replaceable components- 
(good timing belt, (inspect this first) plugs, wires, etc
also check for oil/water in the spark plug holes).

Step one- check you ground straps one more time.

Step two look for the obvious loose wire, connection etc.
play and wriggle each one, including the computer connection, 
and hall sender connection

Step Three-- remove timing cover, and on the inside of the Cam 
pulley, look for the little dot on the Inside of the pulley.
Line this up with the front edge of where the valve cover
and head meet.
look down below to the crank pulley. Since the Car runs,
it will be _near_ the mark if it is off (the mark is on the plastic
timing cover-bottom portion)
if the timing is correct, go to step 3.

Step four- Check Ign timing- Bentley is good for this.

Step five- Try temporarily disconnecting you knock sensor-
It may be getting false readings.

Step six- if you have access to any VW's or something with a Hall sender,
try switching it, just to check.

Step seven- Check the injector seals- with a spray bottle, 
spray a stream around each injector, where it meets the head, while 
the car is running. Any change in running, they need  to be replaced.


I cant think of anything else to check, but my best guess is that it is 
either a bad ground, or a slipped timing belt

HTH-

   Percy.





- -----Original Message-----
From: Ryan Schuermann <rts@nol.net>
To: scirocco-l@scirocco.org <scirocco-l@scirocco.org>
Date: Saturday, September 05, 1998 1:16 PM
Subject: [tech 16v] timing and compression


Well, the Corrado is running really nice so it's time to
get back to my rocco. Ever since I washed the engine bay it hasn't 
been running right, well I did the obvios replace distributor, plugs,
rewired + from starter to battery and ran extra wire from alt to 
battery, cleaned up the grounds, checked and set ignition timing. 
(16v 87 Scirocco)
I did a compression test, now the  Bentley says to keep the car WOT 
while reading compression? Is this necessary? anyways this is what I 
got 

1-205
2-205
3-210
4-220

aint this a little high?? Well the car runs like complete crap now, I 
swear its valve timing that's way off, here's the symptoms
the car is slow, boggy, slow to rev up in gear and slow speed up, 
it takes me forever and a day to get to 45 and I think I top out at 
60mph in it in 4th..5th gear I just loose speed. The car has 
absolutely no power and the engine does shake quite a bit more than 
it should, also exhaust is very put put puttery.

Setting cam timing does'nt look that hard, but I don't want to mash a 
valve. I can't find the timing mark on the cam sprocket, theres no 
hash mark on one of the teeth, what the heck??, and have no idea 
where to look or what I need to remove to see the crank timing mark 
and the dampner mark. Is all this stuff visible from above the engine 
bay?

thanks and its nice to be back.
Ryan
1987 16v Rieger Scirocco
1987 8v Cabriolet
1990 Corrado G60(still for sale)
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