Vacuum Problem 82 Cougar

I'm not seeing it there Norm.

 

It looks like ours but has no tube fitting.

 

You are correct on the choke. Mine has no tube fitting. Just the electrical connector.

I spent all day Saturday and Sunday morning working on the bugger. I've never had a car kick my butt this way.

I've managed to get the car to run reasonably well by blocking the top tube from the PCV valve to the canister purge valve. Don't ask why but this seemed to have fixed the car stalling problem.

I still have a high speed miss fire that's annoying but livable for now. I think it maybe running a bit too lean. The carb's got a .065 jet and maybe stepping to a .066 would be smart being that we are at 2,300 ft in altitude here.

I still have a MAJOR problem. The carb boils over from the heat from the intake and exhaust manifold. This is quite dangerous. The fuel build up in the throttle plate and leaks out the throttle plate shaft and drips on the hot intake manifold. I've never seen fuel boil before. It's quite the sight. The carb float is about 1/8" below the top of the bowl. Per the spec the float should be even with the top of the bowl. I've had this carb on and off and open so many times that I can do it asleep in about 10 minutes.

I'm thinking I'll make a heat shield that will go between the carb and manifold. I've seen some on Chrysler cars.

As long as the engine is running there is no boil over issue but I'm wondering if it's hot enough to bubble enough air to cause the miss. I don't have a vapor lock issue that results in stalling or a no start problem. Just the flooding from the boil over.

The spark plugs look like a lean issue is occuring. They are very clean and white. No tan color at all. This is strange as I've never had this problem before. The timing is exactly correct at 10* BTDC. I also took the extra step and checked timing vs actual TDC and the timing mark ended up exactly at 0* when the #1 was at TDC. I know a lean running engine is hotter than with a proper mixture.

Now I'm thinking that if I correct the leaness then the other issues will go away. e.g. the carb boil over and the stalling caused by the canister purge system.

 

Have you got the Anti-Diesel solenoid too? Supposedly that handles the boiling.

2,300 feet isn't that high up. I've lived in our Rockies (5,000 and higher) without ever touching the system.

Heat shield makes sense. Your EGR is an aluminum casting right?

Your experience with this issue is a puzzle alright. Let me know if I can dig up stuff for you.

 

The anti-diesel solenoid is on the car but is only functional with the A/C on per the wiring and vacuum schematics. The EGR is all cast iron. There are some very slight differences in the carberator. The metering tube and it's hole it fits in is bigger. But that doesn't account for the lean running. Per Holley I should step up to a .066 jet. My concern is that I will pass the HC portion of the emissions test but fail the NOX (nitrous oxide) test because of the lean running. I may give it a shot anyway just to get that behind me. The excess heat I'm sure is from the leaness. The side effect is clean pistons but over time this will definately hurt the exhaust valves and the pistons.

 

What a Dumb A**

I've been surfing around the net this morning and discovered that I think I have the timing 6* off.:banghead3:

What I thought was TDC is actually 6 ATDC. It's hard to see the marks on the car so that's my excuse and I'm sticking to it.

I'm going home for the day at lunch today and I'll thoroughly flog myself then.

No wonder it's running hot enough to boil the fuel and run lean. I'll forgive myself sometime next year.

Sorry for all the aggravation. :You_Rock_Emoticon:Thanks for all the answers for my inane questions and Norm for all your research for me.

Let the beating begin!

 

When you're hot, you're hot! If you're gonna blow it, do it right!

Good that you found it. You could have melted a piston. What about the stalling? All gone too?

I mark my timing marks with white nail polish. Feels funny when you pay for it, but you get over that real fast when this scenario springs up on you.

I'll let you self-flagellate. Ok! Times up!

 

Self fladuation over. That wasn't it. The foureyed tech manual was wrong. I had the timing just right.

But, I pulled the carb off yet again and opened it up and I found a #58 jet vice the 64 in the original carb. What a pain in the butt this has been. Here the carb is supposedly built for a 200 six and it has the wrong jet. This just tics me off. Holley is going to get an earfull.

Oh well. It's running much better. I still have a surge issue. There's still something in the vacuum system acting up but at least I can drive it. What a bugger.

 

I have been totaly beat up that last two months. Last Friday the car was running fantastic. The carb was just right, no surging, stalling or any problem. It was a pleasure to drive.

Then it happened. Sunday I started it up and the float stuck down and I had gas everywhere. The bowl was completely full and overflowing. So, I remove the carb and open it up and fix the float. This is all I did. Fix the stinking float!

Now it runs like crap again. I need the car to run well more than one drive at a time.
Yesterday I start it up, everything is OK, it's running of fast idle cause it's a bit chilly here. After about a minute it just stops running. Acts like it simply ran out of gas. It was probably the inlet valve but heck, I've had soooo much fun with it I get PO'd and return the carb for another.

Again postponed the now 2+ month defered emissions test.

Now I have learned everything about a Ford DS II ignition system and there's nothing I don't know about the emissions controls and how they work including the delays, restrictions and how to test each piece. A lot if this with Stormin' Normans great help from his manuals. I also know each part of the carb and why it's there and what they do and when.

I will not be beat! It's principal now! I will win! Damn it!:Blasting_anim:

 

Your earlier post said you still had a 'surge' issue. Then you mention the float acting stupid. Leading me to ask if the Fuel Pump diaphragm is intact? I can't recall if you mentioned that you replaced it. (CRS)

 

Brand new. Oh by the way I checked it for flow last nite. With the open fuel line it shoots fuel all the way to the firewall. It's very fun to watch the engine run with no carb. Of course I didn't let it run for long and it probably wouldn't have but it was fun.

 

Well, easy for you to say, your gas is much cheaper.

So where do go now? Fuel is good, vacuum seems fine, carb is dubious, but it all started with the EGR valve. :confused: