Slow as a dog, accelerates like a dead fish.

[TucsonHooligan]

Long, but informative. Well, for me anyway. Choke seems to be fully open and the carb is properly functioning. The revs kick way up when i pull the choke at idle, is this a sign I have a massive air leak or uncapped vacuum line somewhere, or is that normal?

 

[66 Fastback]

RPM's increasing with the application of the choke does not sound normal especially if the engine is already warm.

Sounds like you could have a vac leak (or somehow the choke is backwards and actually openning up the plate when you pull the knob).

Another test for the distributor. With the line disconnected at the carb and the engine running and being careful not to tangle your body in rotating parts, suck on the vac line and you should see the timing advance if you have a timing light. The engine speed should also pick up.
Doug

 

[TucsonHooligan]

Did that. Didn't taste very good. It works fine that way, and the diaphram holds perfectly. Its just when I hook the vacuum line up at idle, it advances it from 10 to about 24 degrees. When I throttle it to check the advance, it doesn't seem to move. I think its advanced fully at idle. Choke is functioning properly, and the revs kick up when the engine is warm and I pull it. I'm now thinking massive air leak or uncapped vacuum line. How many vacuum outlets are there on these old carbs?

 

[jamyers]

Long, but informative. Well, for me anyway. Choke seems to be fully open and the carb is properly functioning. The revs kick way up when i pull the choke at idle, is this a sign I have a massive air leak or uncapped vacuum line somewhere, or is that normal?

Could be, although Ford manual chokes often had a cam to bump up the idle speed. On my old carb it increased the idle speed pretty quickly on a warm engine, nice and handy for stuff like jumpstarting or keeping the engine revved up.

 

[TucsonHooligan]

Yeah, it has one. Another dead end. I saw someone in another post talking about the pertronix tape peeling off and the magnets falling out. He said when he put them back in, he had a couple backwards and that caused a couple cylinders to miss. Mine fell apart too, and I put it back together, but I don't see how you could get the magnets backwards, the looked symmetrical. How do I check for that?

 

[Bort62]

If you are getting 24* total at idle, I would suspect that your load-o-matic is getting full manifold vacuum.

Are you hooked up to the correct port on the Carb? Does your Carb have a SCV?

 

[wallaka]

The SCV might be borked, too.

 

[82F100]

I know you've all been on the dizzy subject but also how does the exhaust look? any large dents anywhere? just a thought

 

[TucsonHooligan]

Problem discovered! Its the pertronix. Only 4 of my 6 cylinders are firing. I pulled each plug wire individually and listened for the revs to drop. Sure enough, barrels 2 and 5 weren't doing anything. So for all you that think I'm a retard, and rightfully so, check this bit of genius: I rotated the pertronix one click over and fired it up again and pulled the same wires. This time the revs dropped, so I now know its the little piece with the 6 magnets thats causing all the trouble. What a pain in my a**!

 

[Bort62]

Problem discovered! Its the pertronix. Only 4 of my 6 cylinders are firing. I pulled each plug wire individually and listened for the revs to drop. Sure enough, barrels 2 and 5 weren't doing anything. So for all you that think I'm a retard, and rightfully so, check this bit of genius: I rotated the pertronix one click over and fired it up again and pulled the same wires. This time the revs dropped, so I now know its the little piece with the 6 magnets thats causing all the trouble. What a pain in my a**!

Nice move

Chalk up another failed pertronix.

 

[TucsonHooligan]

Failed in the sense that after the magnets fell out, I must have put some in backwards. How to you tell which side should face out? The positive or the negative?

 

[wallaka]

It shouldn't matter. They work on the Hall effect right? So any magnetic field pasing by will cause it to work.

 

[Bort62]

It shouldn't matter. They work on the Hall effect right? So any magnetic field pasing by will cause it to work.

That would be my assumption...

I would consider the magnets falling out to be failure.

 

[TucsonHooligan]

Thats what I figured, yet the term "Hall Effect" never actually came up. I put them all positive side, or north pole, whatever, out and now I'm pumping on all 6! WOW! It's a whole different freaking car! Now if you could tell me why my tranny spews oil out of the filler tube, I'd have a decent car!

 

[jamyers]

Woo-hoo!

Glad you found it. And all isn't lost, look at all the fun stuff you learned along the way :roll: .

btw: LOVE your sig!

 

[TucsonHooligan]

True, I learned a ton. Although, had I known more to begin with, it wouldn't have taken this long!

 

[66 Fastback]

Here you are talking down about your abilities, but I think we all learned something from your problem. You were very thorough. Who would have thought the magnets would have done that. I guess it might make sense.
Doug

 

[Bort62]

I agree, very nice troubleshooting job.

And everyone knows that I appreciate that

 

[TucsonHooligan]

Thanks for the compliments guys. And for all the help along the way. I'm sure I'll be back multiple times with even longer threads and more baffling mysteries. Good times!

 

[jamyers]

So....how about them brakes?





The road goes on forever, but the
arty:
never ends....