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Author Topic:   AM I TO RICH,
fridge
Dirt Full Roller

Total posts: 64
posted May 12, 2002 12:22 AM
i have a problem we just converted to alcohol this season i have a BARRY GRANT SPORTSMAN 750 i am running 90 jets in the front and 90 in the rear, today i dorve the car around the garage to make sure its shifting ok and everything well later when i went to change the oil i found the oil VERY MILKY, at first i thought it was water but after the engine builder came over he said it was alcohol, he told me to have my carb looked at but i already had it rebuilt and everything, and BG told me to start with 90 jets as a baseline, my question is could there be something wrong with the carb,

thanks in advance,

[This message has been edited by fridge (edited May 12, 2002).]

fridge
Dirt Full Roller

Total posts: 64
posted May 12, 2002 12:24 AM
also i forgot to mention when we were checkign the timing it seemed like it was loading up, but this didn't happen before, and it was spitting a little bit of alcohol out of the front tube on the carb,

Dirt2race
Dirt Full Roller

Total posts: 40
posted May 12, 2002 01:28 AM
Either a float is sticking or the bowl is way out of adjustment. Alky carbs stick extremly bad. Tap on the adjustment ***** with a ***** driver handle. (Not a HAMMER, LOL) When there is that much alcohol in the motor, it will also be very hard to crank due to increased compression. If you have started the motor since changing the oil, change it again when the carb is fixed.

bogged
Dirt Full Roller

Total posts: 53
posted May 12, 2002 10:31 AM
I agree with dirt2race, it is not your jetting. Have the carb rechecked, it can be a number of things (float adjustment, metering block gasket, bad power valve). Just because the carb was rebuilt, things can and do go wrong.

WPP
Dirt Maniac

Total posts: 162
posted May 12, 2002 10:35 AM
WHEN YOU START A ALKY MOTOR YOU ALSO NEED TO LET THE ENGINE WARM UP I WOULD FIND THE PROBLEM WITH ALKY COMEING OUT OF THE HEADER IT PROBALY IS THE FLOAT

dirtracer14
Dirt Freak

Total posts: 333
posted May 12, 2002 11:43 AM UIN: 23443678
What was the temp of the air? If i just let my car sit and idle when its cold it will milk the oil and stays milky till i go hot lap then it cleans up, if its coming out the tube it may be float adjustment or to much pressure at idle. Im not saying there cant be anything wrong with the carb i just know that my oil milks up till i warm the car up.

Greggie
Dirt Full Roller

Total posts: 66
posted May 12, 2002 03:14 PM
The things to check on a BG carb when fuel is dribbling out of the tube in the the carb is float level and how far open the butterfly is at idle. If the butterfly is too high on the on the idle slot in the baseplate, it will cause the fuel to start coming out of the main fuel circuit. If you slow the idle down and give it a little more fuel with the 4 idle mixture screws on the side of the metering blocks, you should fix the problem. As far as milking your oil, the alcohol will disappear as the oil temp warms up. What happens is when the motor is cold and you have the problem you are having, some fuel is pushing past the rings and going into the oil. The alcohol then picks up all of the condesation in the pan and inside the block and makes it look worse than it really is. Just fix your carb problem, and let the motor warm up and the oil will look like oil again. I run Silver Claws, so I am probably pretty close to what BG has told you to do for the initial set up, but I would recommend giving them a second call to make sure that what I told you applies to the Sportsman series carb.

Me

Dirt2race
Dirt Full Roller

Total posts: 40
posted May 12, 2002 09:38 PM
You can't even say skrew driver or adjustment skrew on here? I understand the need for monitoring but that is a little silly........LOL P.S. Sorry for the spelling, the correct spelling gets a *****.

[This message has been edited by Dirt2race (edited May 12, 2002).]

uforacing51
Dirt Freak

Total posts: 240
posted May 14, 2002 01:45 PM
How new is the motor? I was told it is alchol wash when that happened to me, I changed the oil, let the engine run till it was seating the rings and it stopped. It thins out the oil, but other than that its not a problem with anything, just run your engine till its broke in (consider running the engine on gas till its broke in too, just get a new set of plugs cause it may foul the ones in there now, you need alot more alky than fuel)
Also, I agree with Gregie, but check the little tiny vent holes just inside the throat and above the venturies in the primarys, my BG would always clog those and drip fuel into the engine at idle until I cleaned those out. make sure your air cleaner is sealed good and use a little grease to seal it.
(BTW, you can never be TOO rich!!!)

[This message has been edited by uforacing51 (edited May 15, 2002).]

fridge
Dirt Full Roller

Total posts: 64
posted May 15, 2002 12:20 AM
thanks for all the replies guys, alot of things were wrong that i should have checked and i overlooked, floats were to high, power valve was wrong, had to much fuel pressure, so i sent the carb out to a new carb guy and i am getting a different regulator,

i think the ONLY smart thing that i did was break the motor in on gas, we ran it about 4 times on gas then switched to alcohol and i only had it running twice on alcohol so i am glad i found it BEFORE i raced the new motor,

again thanks for the replies

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