[chipzoller]

Read the timing guide on cabby-info and had a question about how the vacuum advance and connecting hose plays into the equation. On most cars I've seen, the vacuum advance has to be plugged and the other hose capped. I didn't see this mentioned in the guide. Is this plugging technique implicit, or is it not applicable in this situation?

 

[jzinkel]

My "ever growing" understanding of the workings of this fine car is that there is (or should be) no vacuum to the vacuum advance device (located on the distributor) while the car is at idle. Therefore no concern during a timing procedure. Make sure there are no vacuum leaks, car is tuned etc before the timing procedure. Right guys and gals?
Regards, jjz

 

[chipzoller]

Even if it should be timed, as the document indicates, at 2250 RPMs?

 

[backinthegame]

The vacuum drops under acceleration, not at idle. Hook up a vacuum gague and blip the throttle, watch it drop. :thumbup:

 

[rabbitnothopper]

Even if it should be timed, as the document indicates, at 2250 RPMs?

timed via a timing light and the timing hole with the flywheel

youre timing the flywheel at 2250rpm


correct, there is no vacuum advance at 2250 rpm only during acceleration

 

[sehaare]

Even if it should be timed, as the document indicates, at 2250 RPMs?

Timing on a CIS engine is done at idle speed NOT 2250 (that is for Digi). It states that twice in the document that you are referring to.

 

[kamzcab86]

Timing on a CIS engine is done at idle speed NOT 2250 (that is for Digi). It states that twice in the document that you are referring to.

:thumbup:

Read the third paragraph in step 6 carefully.

 

[chipzoller]

Sorry about that, y'all are right. Just didn't read very carefully.