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Funny thing happened last night...


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I'd stopped by a Ford Specialists shop last night and asked a few questions about my fuel problem, and Rick, Owner of High Tech Auto says, it is not the carb, no way, no how... So I go home and run a few checks per his suggestion. Chris C. From this bulletin board calls me up, and then comes over.. We run through all the tips on checking the complete system out, and everything points to the fact that my pump, my cell, my line, and my regulator are fine... So why won't the system keep 7.5psi? We walk down the street to my buddies house (Guy has an awesome 55 Chevy) and he listens to my diatribe and says the same thing, it ain't the carb... then we all hash it out again.. Maybe it is the carb.. Maybe something is stuck open, allowing the carb to just empty its contents into the intake... also contributing to the whole under hood temp rise that I have... So Chris and I go back to the house ad try a few more things... then we remove the carb and pull it apart... the primary side is clean as a whistle... the secondary side is full, and I mean FULL of trash... little waxy flakes of stuff... and grit, probably from the braided lines being cut and debris falling down the line... I ussually blow everything out with compressed air, but as much as I have swapped stuff in and out lately, it is alwasy possible to get trash in the lines, not to mention that the longer this project goes, the more filthy the garage gets... Anyway, I'm gonna get some new Needle/ seat assemblys, gaskets, and about 18 gallons of carb cleaner and go to town on the thing and see if I can get it back into shape... What a mess... Guess I'll pick up new accelerator pumps as well...

 

Moral of the story is that I suspected the carb a while back and several experts I called claimed that the carb could not cause this, and they may be right... Only way to tell is putting the carb back on after it is cleaned... I'm thinking its the carb, based on all the checks and the fact that I found such a filthy mess in the secondary bank of that carb...

 

Crazy!

Mike

 

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"I will not be a spectator in the sport of life!"

mjk

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Guest Anonymous

I have to tell you guys, Mike has more will power than any human being I have ever met!!! He has been dealing with this problem for over three months now and no one could offer any information on what was causing the problem. I was over his house last yesterday afternoon for about 3 1/2 hours and I was pulling my hair out!!! I know, for a fact, that I could not have dealt with his problem for three months!!! This is how desperate we got yesterday, we see a guy drive by with a hot Mustang on a trailer and stop down the road to pick up his girlfriend to go to the drag races. I ask Mike if he knew them and he said that he didn't. I ask him if he wanted to walk down there and ask him if he had any ideas, after Mike giving me a look like "they are total strangers" we figured what the hell - can't hurt. Well he appeared to be a pretty sharp guy but only told Mike what thousands of others had told him before.

 

So to make a long story short, well sort of short, we plumbed a fuel guage into the line right behind the fuel pump at the cell and fired it up, the guage at the cell held ~15lbs and the guage on the regulator held 7.5 lbs. After a few minutes the pressure at the regulator began to fall off while the guage at the cell held rock solid. So we pulled the line off of the carb and capped it off and turned the pump on. The pressure held solid at both guages. We then uncapped the line and routed it to a gas can and turned the pump on, the gauge at the cell was back to ~15lbs and the guage at the regulator was at ~2lbs with the line running fuel into the can wide open. Just to make sure we weren't crazy we capped the line off again and turned the pump back on and both guages were rock solid with good pressure. The conclusion - it has to be the DAMN carb!!

 

A friend of mine suggested that it was the carb but I thought he was grabbing at straws as to me it seems all of the pressure regulation comes before the carb so it really should not matter. Well, I guess you learn something new everyday.

 

I REALLY, REALLY hope this is the solution!!! Not only for Mike but for my benefit, I need Mike's car as a selling point to the wife!!! LOL...

 

Chris

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Guest RON JONES

Mike,I hope you have it nailed.I would think if it was in the carb,it would start running like $h!t when the pressure starts droping?My thinking is,wouldn,t it start flooding the motor?Any way I hope you have it fixed.I want to hear about what a beast it is!

 

[This message has been edited by RON JONES (edited June 09, 2000).]

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Ron,

What I found out yesterday is that the gas was boiling in the secondary side of the motor. Took the carb to a speed shop and had the guy look at the parts... Gas was cooked onto the bowl bolts. I have a heat shield I'm gonna bolt on and then I'm gonna put everything back together with the clean carb in place, retune it and see how it runs. Hopefully this is why my car was not keeping pressure. Other than that, the reason the car ran so well was the fact that the priamary side of the carb was pristine... and as you know, the primary side is all that is being used at adle, which was where I had been testing the carb for the last 10 weeks... amazing.. Its the little things that get ya everytime.

 

Mike

 

------------------

 

"I will not be a spectator in the sport of life!"

mjk

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