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Re: ideling in gear problem
[Re: joedust451]
#982318
05/04/11 10:18 AM
05/04/11 10:18 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
I tried cleaning the idle bleeds and no help so I pulled the carb and checked the idle slots. They looked OK. I found the secondary shaft pretty loose. Probably enought to cause a vacuum leak. I had checked that with carb cleaner but it didnt show bad. My thought was to compare idle passages in the meteing block to another. Since the shaft was so loose I just put the BG 850 DP back on. It dosent seem to run as rich but still stalls when I drop it in gear... I have a Mallory unilite dist.... I put it in and guess what, the stalling quit? I dont understand. I know the total timing is way high. I will fix that tonight. Thank God for start retard!
Sounds like your just having a timing problem, you don't have enough int. timing, Is that Mallory adj., if so, i'd be setting it up around 16* int., 36* total all in around 24-2600. Once you get the bugs worked out you'll see i'm right about that cam, it will idle with a very mild converter.
Convertor is fine, you need to understand what intial timing is and total timing. It needs more intial and then you have to limit total timing. That will fix it for sure. Basic tuning.
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Re: ideling in ear problem
[Re: Dunnuck Racing]
#982319
05/04/11 10:18 AM
05/04/11 10:18 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Sounds like you may need more initial timing.Try putting a couple more degrees in it and see if it improves,if so you might need to limit the mechanical advance and crank up the initial timing. 
Keith
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Re: ideling in ear problem
[Re: Challenger 1]
#982320
05/05/11 10:06 PM
05/05/11 10:06 PM
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Joined: Jan 2006
Posts: 587
IL . usa
cjs69mope
mopar
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mopar
Joined: Jan 2006
Posts: 587
IL . usa
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BG Demon carbs are designed to work with at least 20 deg of initial timing . just keep that in mind if you tune by what people tell you to set the timing at you will never figure it out yourself .
just turn the timing up until you get the best vacuum .
that is where i would leave the initial and adjust the advance from there to limit timing .every motor is differant.
Keith black has done tests and found that very little hp was recognized when advancing past 34 total timing .
with pump premium 93 36 38 could be risky . on a iron head motor .
1969 Dodge Charger
1969 Dodge Superbee
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