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ok I just have a timing light, MY 1993 ev is a 5 speed, what rpm do I time my motor with a
timeing light. Just put a new t belt on. Please help.

best regards,

carl
Homer ak

At idle after the van has warmed up. Your idle should be around 800 rpm when you are done.

Hope this helps,
Ken Wilford
John 3:16
www.vanagain.com


newfield4u wrote:

--- newfield4u <newfield@...> wrote:

ok I just have a timing light, MY 1993 ev is a 5 speed, what rpm do I time my motor with a
timeing light. Just put a new t belt on. Please help.

I believe it's around 2500rpm for Digifant motors.

--- In ev_update@..., gti_matt <gti_matt@...> wrote:

--- newfield4u <newfield@...> wrote:

ok I just have a timing light, MY 1993 ev is a 5 speed, what rpm do I time my motor with

a

timeing light. Just put a new t belt on. Please help.

I believe it's around 2500rpm for Digifant motors.

I timed at about 750 rpm at the btdc mark. The mark on the flywheel was skipping around
some, does that mean that the distributor is worn out?

turns

--- newfield4u <newfield@...> wrote:

I timed at about 750 rpm at the btdc mark. The mark on the flywheel was skipping around
some, does that mean that the distributor is worn out?

I don't think so. My Mk2 w/Digifant did the same thing when you looked at the mark at idle.
However I'm 99.999% sure the correct way to time a Digifant VW is with the engine warm, at about
2500rpm, coolant temp sensor unplugged, and IIRC the PCV hose also disconnected and plugged. This
all puts the ECU in learning/adjustment mode for setting the timing. Check it out here:


It doesn't say so either but when disconnecting the coolant temperature sensor, there is a right
way and a wrong way. One of them was disconnecting after the engine was already running, the
other was disconnecting before starting the engine. I forget which is the right way but it does
make a difference. If it doesn't work out one way (after you hook everything back up and the car
runs like crap), try the other way. I remember when timing my mk2 that I did it like 4 times and
every time afterwards the car wouldn't rev past 2200rpm because the timing was so messed up.
Finally figured out it had to do with the CTS being disconnected in the procedure either before or
after the engine was running. (Sorry I don't remember which...I have it written down in my mk2
manual though at home, I could look there later if you need me to.)

--- gti_matt <gti_matt@...> wrote:

Finally figured out it had to do with the CTS being disconnected in the procedure either before
or after the engine was running. (Sorry I don't remember which...I have it written down in my

mk2 manual though at home, I could look there later if you need me to.)

aha I found it in an old post of mine...disconnect the CTS after starting the engine, not before.

FWIW, this was the Bentley instructions (with a minor modification from me) for my Mk2...Eurovan
should be similar as far as I know:

Bentley #1: On cars with manual transmission, use a 27mm hex wrench to remove the plastic plug
from the timing check hole at the top of the transaxle bellhousing.

Bentley #2: With the ignition off, connect a tachometer and timing light to the battery + and to
the coil negative terminal 1.

Bentley #3: Disconnect the harness connector to the coolant temperature sensor as shown.

(but gti_matt interjects and says do #3 disconnect after the car started and warmed up in step
#4...doesn't work right otherwise...and if you have a CEL it will throw a CEL light that'll need
to be cleared but this is normal for disconnecting the CTS)

Bentley #4: Start the engine and allow it to fully warm up. Oil temperature should be at least
176F. Radiator fan should cycle on and off at least once indicating that the engine is up to
normal operating temperature.

Bentley #5: Briefly raise the engine speed to about 2100rpm and let it return to idle. Repeat 3 or
4 times.

Bentley #6: With the engine running between 2000 and 2500rpm, aim the timing light at the timing
check hole in the transaxle bellhousing. The timing mark on the flywheel should appear adjacent to
the pointer in the hole as shown.

Also just found the procedure online:


It starts on page 28-11. Bottom line though is that it's done with a warm engine (let the fans
cycle on/off once to be sure, even better if you go on a little drive beforehand), disconnect the
CTS after startup (not before), set timing while a helper is revving the engine between
2000-2500rpm. They go into some VAGCOM stuff to get some temperature readings from the ECU but
that's not necessary...if the cooling fans have cycled on/off you're good.