Toyota disty advance vac can Q

[heep70]

Does both diaphrams in the can hold vaccum? What does the second diaphram (closest to the disty) and what does the first diaphram do?


Can both diaphrams use the same vac line and were can I get the VTV if I need it?

 

[84Toyota4x4]

If I remember right, one is supposed to be before and one after the throttle plates or some crap, one for idle and one for cruise vacuum. I dont remember for sure though.

~T.J.

 

[crash2]

One has less travel than the other--you want less advance when its cold...

 

[heep70]

What if I have only one vac line. Which port should I hook it to?

I also did some reading and it said that the front diaphram is the advance and the rear diaphram is for retarding the timing to help decrease emissions.

 

[84Toyota4x4]

Yeah, one for idle, one for cruise... Timing advances as the RPMs come up.

Why do you only have one vacuum line? Just find another source for vacuum and run both.

~T.J.

 

[heep70]

I have put a Motorcraft 5200 (weber) on my 20R. So can I get a can that has one nipple?

I said nipple :dumbass:

I know they where once used. Which one is for cruising? I ain't worried about idle.