weber carb conversion and backfiring?

[hugginsvilleH&A]

well i got the carb off after i checked the accelerater pump, it squirted a big ole stream ever time, so its working as advertised,,, the carb needed to come off to be cleaned after all that backfiring it really mucked the carb up black stuff everywhere, i swapped the mains around #1 - .115 and # 2- .100.

That being said everything i have been reading is pointing the fact that its backfiring in the intake points to a lean condition and also the adjustments i have done have left them barely within limits but on the lean side, so i ordered a couple more primary/secondary idle jets , 1&2 steps richer,,,and just in case 1 set leaner,,,,,will be here by the end of the week i hope, wish i would have gotten a Holley carb due to the fact that ALL the auto parts stores around me carry holley carb parts/jets, guess which carb NOBODY carries parts for? you got it the one I'm holding

well when i get this figured out i hope this thread will help the next fella figure his problem out

[Spike]

Honestly, though I didn't know anything about carbs (well, nearly nothing), I still wish I'd gotten the Escort carb. Would've saved me about $200 in total. But eh! I did get $300 worth of learning out of it. :p

[bravekozak]

I told my mother-in-law not to buy any more lottery tickets. The same applies to you too.
Ice storm. Two and a half day power outage. Went to backfeed furnace and could not find a receptacle until after five tries and an extra thirty feet of extension cord.
Even the receptacle beside the panel on the logical side fed the opposite side.
No circuits were labelled. No manual furnace switch. The furnace feed junction had been buried against code, inside a wall partition. It was now visible because of high efficiency pipes plumbed directly underneath, so that the cover plate could not be easily removed. All this walking around in the dark, cold basement with a flashlight

[drddan]

I told my mother-in-law not to buy any more lottery tickets. The same applies to you too.

:highly_amused:

I was thinking the same thing! Usually, one can put a Weber on and it will run! Even with the jets all outta whack!

I have heard a few complaints along the way, about the newer Holley/Weber carbs (empi) The original Weber's (as I have) had no connection with Holley and really have not heard bad about the original's.
I wonder if quality control is not quite what it should be on the Holley/Weber carbs.

Huggins, do you have the Holley/Weber/empi carb, or an original Weber?

A good read about the holley vs weber debate from an opel forum

http://www.opelgt.com/forums/afterma...dfv-clone.html

[hugginsvilleH&A]

Drd I dont know? it was the samari kit from webers direct . com ,,,,, how do i know what i got? i need to read your link. I dont know if holley is any better but i do know every parts store around here has parts for them exclusively, no other to be found especially the webers,

some do have all the luck, not me man my motto tends to be "third time is a charm" it useally takes me that many times to get it right, every once in a while i hit a homerun but usually it fights me all the way, its all good I'm sorta getting use to it

[drddan]

If you got the carb from weber carbs direct, they are weber made. Have you called them?

[1chrisapple]

he called them alright. everything in the book.lol sorry man good luck

[hugginsvilleH&A]

Drd, nah no need really to call them,,, yet , i will try the different idle jets and go from there, they cant help it if my car doesnt want to run with the shipped set, who knows maybe i screwed things up on the initial install???? I am 99% sure i didnt , but you never know, when going back on i will double, triple check everything... I got a nice feeling things are gonna go my way this time around,,,maybe i should buy a lottery ticket

1CA your right i have had some colorful langauge for them, good thing i am in the middle of no where so no-one can hear me trying to coerce that thing to run right but if i can get this thing to run coming off idle like it does when i am revving it, things will be golden , i am confident i will get there thanks to your guys suggestions/ directions

i got to keep reminding myself this car is 25-26 years old, some things dont work all the time,

[zoe60]

Drd I dont know? it was the samari kit from webers direct . com ,,,,, how do i know what i got? i need to read your link. I dont know if holley is any better but i do know every parts store around here has parts for them exclusively, no other to be found especially the webers,

some do have all the luck, not me man my motto tends to be "third time is a charm" it useally takes me that many times to get it right, every once in a while i hit a homerun but usually it fights me all the way, its all good I'm sorta getting use to it

That's the exact carb I have and it ran great out of the box. It takes ten minutes to put the 140 mains back in and you should already have them. If your car runs too lean you will ruin your engine. you can't just put in small jets to try to get better fuel economy. a carb has to be tuned to the proper AFR, hopefully with a wideband. I have a B6 with 140's and mine runs a little lean at cruising speed. Around 16:1

[hugginsvilleH&A]

Zoe i agree, but this is also what i have read on several pages and the reason i am going to go ahead and try richer idle jets and see if i can do it by the book and get things right.

"The secret to understanding the critical nature of the carburetor set up and the advantages of a WEBER over other carburetors is the idle circuit. Referred to as the low speed circuit by Weber, this circuit is responsible for 80% of the driving operation."

[hugginsvilleH&A]

I beleive i need to invest in a AFR setup to make sure everything is in order

[zoe60]

Might help if you got the car so that you could drive it at all lol!

[hugginsvilleH&A]

i hear ya,,,, pretty useless right now

[hugginsvilleH&A]

the saga continues - what i tried today, the idle jets came in saturday, its my weekend right now so after work i was looking forward to fixing this mess and putting it all behind me,,,,,well it had other plans,,, first i had removed the carb, clean it up, checked the accelerator pump stuff,

all seemed ok put in the .65 idles jets in both pri/sec. found a key on hot wire for the choke 12 volts,before with the .60 the turns on the mix was 2.5-3 and idle was 2-2.5 out, with the .65 the mix went down to 1.5-1.75 and the idle speed was at 1.5-1.75, revved up nice ,go to go, so i thought, took it for a spin around the "yard" then it started again and progressively got worst, WTH is going on? so i started digging around deeper looked at the fuel lined from the tank fwd and lo and behold i found an old old fuel filter buried down low and with a pretty good collapsed fuel line, cool this has to be it well i went and got some fuel line at the parts store, slapped it in and started it up and no-go, darn thing is still stumbling off idle tho not nearly as bad, so i tried it without my pressure regulater like some have suggested again no change.

ok i moved on and dropped in some .70 idle jets,,,, and guess what happened? not a d#%m thing still has the stumble, but now i can literally stomp the gas and it will barely stumble and rev to the moon, but i cant drive around doing hole shots as fun as that sounds , the mix was at 1 and the speed screw was at 1.5 turns

so i am still at point 1, i even tried adjusting the secondary so it would be cracked open to keep the mixture on the rich side, it bumped the idle up also , nothing, what a pita, will be removing the carb and seeing if i can find more trash, gonna go to bed now i have been up for 24+ hrs now, and see what i can come up with, will change the mains back to the .140 and see what happens, I dont know what else to do to get this thing to work???

anymore ideas????

[Spike]

I have a question, almost made a thread on it.

Those who have tried, is the 1.6L Escort carb the same 'bolt pattern' as the Weber everyone's trying? If so, first thing I'll do when I have money is buy one.

Sorry to threadjack, but I believe Huggins asked the same question earlier.

-Joe