The port on top of the dist cap plugs into a VSV that clips onto the bottom of your stock air cleaner. It draws air through the dist to prevent any detonation of fumes inside the dist cap.
School is out, the fun begins.
- Thread starter klinetime574
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- Thread starter
- #102
Hmm sounds pretty important. I wonder if I could somehow hook it up...
On the other hand, Would capping it bring ultimate death?
Your truck would explode in a giant flaming fireball if you didn't hook it up,
I hooked mine back up when I did my desmog.
- Thread starter
- #104
Your truck would explode in a giant flaming fireball if you didn't hook it up,
I hooked mine back up when I did my desmog.
My real problem is though I won't be using the stock air cleaner anymore so where would it hook up?
That is a good question. That's due to the fact that you have a weber, right?
The idea is that it draws air through the dist, with a regulating valve to control when it draws air......
Let me run out to my truck to grab the emissions manual.
The idea is that it draws air through the dist, with a regulating valve to control when it draws air......
Let me run out to my truck to grab the emissions manual.
Behold my MS Paint skills:
This is what the circuit looks like, which is straight out of the 81 emissions manual. It appears that whenever the engine is on, the VCV valve is open, allowing the air to be drawn from the dist into the air filter, based on the VCV test. I'm not sure why that circuit would need to be closed, but there must be a reason.
Without an air filter to hook it up to, I'm not sure where you'd put it. You could put it onto the tube that comes out of the carb insulator, but you still wouldn't be able to run the VCV.
This is what the circuit looks like, which is straight out of the 81 emissions manual. It appears that whenever the engine is on, the VCV valve is open, allowing the air to be drawn from the dist into the air filter, based on the VCV test. I'm not sure why that circuit would need to be closed, but there must be a reason.
Without an air filter to hook it up to, I'm not sure where you'd put it. You could put it onto the tube that comes out of the carb insulator, but you still wouldn't be able to run the VCV.
- Thread starter
- #108
I could somehow tie it into the weber if I have enough ports
Well sounds like I'm removing the first one.
Plugging in the second one to the weber
and capping the ports on the dist.
Any takers on the random plug?
Oh and something else:
What does the smaller port on the distributor cap plug in to? (Sorry I don't have a pic of that)
The random plug?? Might just be a random plug. i have a few of those, just one of those things where the harness has a few vehicles its from and yours doesn't use that plug.
- Thread starter
- #111
Got all the PVC/ Vacuum Lines hooked up. Tried to make it simple, and hook up things that make the most sense and are as close to OEM as possible.
What size bolt will fit in here?
Thanks Guys!
What size bolt will fit in here?
Thanks Guys!
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That looks great! It reminds me of the days making VW Gti engines look cleaner, better, faster(not so much with a 60).
Do you have a vacuum line on the primary distributor advance? My truck doesn't run properly without it. Actually I just checked my setup and the secondary port on the distributor goes here:
Not sure if this is really correct, but it seems to run fine.
My primary port is connected to the base of the carb which I believe you have hooked up ok.
Not sure if this is really correct, but it seems to run fine.
My primary port is connected to the base of the carb which I believe you have hooked up ok.
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- Thread starter
- #114
Yes I do. You can't see it because it snakes around the back of the engine with the larger lines.
- Thread starter
- #116
The smaller port on that finned piece connects to the A/C idle up switch.
The (secondary) port on the distributor goes to the HAC.
The (secondary) port on the distributor goes to the HAC.
Yeah, I know.
My P.O. had it hooked up like that with the HAC port to the A/C idle up port at the intake. I guess I have been driving around with a little more vacuum advance.
I un-hooked it and blocked the HAC and A/C ports and it seem to run the same but the idle did move down like 200 rpm.
My P.O. had it hooked up like that with the HAC port to the A/C idle up port at the intake. I guess I have been driving around with a little more vacuum advance.
I un-hooked it and blocked the HAC and A/C ports and it seem to run the same but the idle did move down like 200 rpm.
- Thread starter
- #118
That leads to another question.
I don't think I can ook up the A/C idle up switch so what do I do?
I don't think I can ook up the A/C idle up switch so what do I do?
