carb question, think im running lean

8

85-302

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Dec 18, 2002

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st petersburg FL

Feb 12, 2004

#1

• Feb 12, 2004

• #1

i checked the plugs on it jut for the hell of it and it looks like there are small white dots comeing out on the electrode i think that means its running lean. im running one step colder plugs, autolite. allso the metal portion which curves up above the plug is turning white.... if it is running lean how do i adjust it. thanks

 

SwAmPf0x

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Dec 29, 2001

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Hell Hole Swamp

Feb 12, 2004

#2

• Feb 12, 2004

• #2

Small white dots could indicate detonation, as for being lean, what was the engine doing right before you checked the plugs? there are different adjustments for idling, highway cruising, full throttle etc..

 

SwAmPf0x

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Hell Hole Swamp

Feb 12, 2004

#3

• Feb 12, 2004

• #3

Oh and I want your car....

 

8

85-302

New Member

Dec 18, 2002

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st petersburg FL

Feb 12, 2004

#4

• Feb 12, 2004

• #4

its been running fine, really strong. i use 93 oct. the dots arnt that noticable i just was hopeing i could catch something before it got started. oh and i just had the top of the engine rebuild w/ mild head work new carb(holly 650) and cleaned everything up real nice. i also have full exhaust and some other bolt ons. thanks for the comptement... i want a car like yours. workin on it

 

maverick0716

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Feb 12, 2004

#5

• Feb 12, 2004

• #5

Sounds like you both have nice cars!

 

hllon4whls

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Covington

Feb 12, 2004

#6

• Feb 12, 2004

• #6

85-302 said:

i checked the plugs on it jut for the hell of it and it looks like there are small white dots comeing out on the electrode i think that means its running lean. im running one step colder plugs, autolite. allso the metal portion which curves up above the plug is turning white.... if it is running lean how do i adjust it. thanks

Click to expand...

To adjust the mixture, you have to open the carb and install larger jets. You can get a whole box of jets for $30 or so from jegs. You would want to go up one or two at the most. It is common for carbed cars to go lean in the winter with cool dry air.

 

maverick0716

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Feb 12, 2004

#7

• Feb 12, 2004

• #7

Can't you just adjust the idle mixture screw?

 

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85-302

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Dec 18, 2002

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st petersburg FL

Feb 12, 2004

#8

• Feb 12, 2004

• #8

better to run a little rich than a little lean right? ill look into it thanks for the help

 

hllon4whls

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Feb 13, 2004

#9

• Feb 13, 2004

• #9

maverick0716 said:

Can't you just adjust the idle mixture screw?

Click to expand...

The idle mixture screw is just that. It adjusts the amount of fuel for a good idle and nothing beyond that. The idle circuit will not affect the car at part or WOT.

 

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85-302

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st petersburg FL

Feb 14, 2004

#10

• Feb 14, 2004

• #10

ttt