Re : [T3] Hesitation, Bogged Down, Vibration - It's All here!

["Martinez, Leon" <martinezl@ftscpac.navy.mil>]

-----Original Message-----
From: Martinez, Leon
To: 'bluesky@verdeonline.com'
Sent: 04/05/2001 3:44 PM
Subject: Re: [T3] Hesitation, Bogged Down, Vibration - It's All here!

Chris,

I have had these problems before and so much more . I learned this
system the hard way and found it very understandable once you go through
it :

If you wish we can try troubleshooting phase by phase as all the bad
experiences I had has given me some insight and empathy. I too
had problems for one year and so much more that everyone has never heard

of. My car runs very smoothly, accelerates beatifully, great gas
mileage,
reaches top speed easily , 90 mph and can reach 100 + when fear is
lacking.

Check this first (non EFI causes)

1.compression . How much is it ? ( I had 60 lbs on three and zero in one
when I
first got the car, very bad.

2. If your advance is set correctly see if it actually advances, using a
timing 
     light, does it move several bumps , max advance is around 18 to 23
degees
      depending on the version of the distributor. (mine did not move at
all,
    0 degrees on all speeds ) if it does not move suck on the vacume
hose attached 
 to the vacune advance , does it move the cam under the rotor?, if not
you must clean
this by disasembly of the center shaft/ advance mechanism. if you cannot
disasemble
(requires much patience, dexterity and micro screw drivers, center shaft
circlip),
oil it with deep penetrating oil or leave it in solvent for a few hours,
it depends how stuck it
is. This problem agrivated all of my problems.

3. does the engine miss in idle as you work on it? When you rotate the
butterfly at
the manifold does it vibrate as speed changes or is this only under load
?
check spark plug gap too big of gap can cuase miss at higher speeds.
dist cap good and wires good. Check coil for strong spark , should be
nice and strong no invisible weeaklings allowed ?

4. Have you checked the valve adjustment, too tight can have
consequences during higher speeds.

5. Check if cooling ducts are attached to your heaters or openings are
sealed, no air should escape 
the fan shroud, if it does then overheating can occur as well as bogging
down.

6. check your air control valve , is it sucking lots of air when engine
is cold (morning)?
Is it sucking very little or no air when engine is at normal temps or
hot. These would be 
normal indications , all other ones would not be correct. This causes
many bogg downs 
and unbalanced running , too slow and too fast idle. This was a headache
for me.

I need to go home now but I will e-mail you from there about the fun EFI
side of this and every single 
problem and correction I had.

ANSWER EACH ONE OF THESE WHEN YOU CAN.



LEON MARTINEZ

1969 SQUAREBACK EFI/AUTO

SAN DIEGO AND TIJUANA  

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