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Author Topic:   Starting an alcohol motor with gas?
modshoe
Dirt Newbie

Total posts: 1
posted February 11, 2002 01:10 PM
Is it normal for an alcohol carbed motor to not start without a shot of gas, or carb cleaner when it is cold out? We just spent a bundle on a new alcohol carb and it works much better than the old one but still will not start on alcohol when it's cold.

x13jc
Dirt Maniac

Total posts: 191
posted February 11, 2002 01:25 PM UIN: 27426975
we always start with gas, less cylinder wear.

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RACERX

CUSTOMPERFORMANCE
Dirt Freak

Total posts: 464
posted February 11, 2002 02:10 PM
When it is cold my mod will not start right off when it is cold, i keep a squirt can with gas in the trailer when this occurs.

old racer
Dirt Full Roller

Total posts: 32
posted February 11, 2002 03:08 PM
We always start on gas if its cold or the car has not been started in a while. It eliminates unneccesary wear and tear. We also pull the plugs and squirt the WD-40 in cylinders if car sat all week before we fire it. Alchohol is very corrosive, the use of upper lube helps but motors cost to much not to take extra measures to protect them. You wouldn't want the guy claiming to get a bad one would you.

bkap
Dirt Full Roller

Total posts: 61
posted February 11, 2002 03:35 PM
I keep a spray can of Starter Fluid in the trailer and one in the shop for cold-weather starts. It's safer than keeping a small can of gas around and works well. I also try to get oil pressure in the engine before firing. Having said that, it should be noted that sometimes my buddy/pit help gives it a shot of Starter Fluid, then pumps the throttle a few times so the engine starts at too high an rpm for a cold start. Ouch...

Of course, he builds the motors.

[This message has been edited by bkap (edited February 11, 2002).]

DodgeBoy76
Dirt Full Roller

Total posts: 73
posted February 11, 2002 06:20 PM
I tend to keep away from the starter fluid, or either, just due to the fact that starting fluid will actually raise the compression in an engine. I found that out the hard way. In my personal opinion i will stick with giving a shot of carb cleaner or gas to rattle mine off.

hughes
Dirt Maniac

Total posts: 117
posted February 12, 2002 07:50 AM
Speaking of either (not racing related), I saw a truck driver trying to start a 18 wheeler in a ice storm with a can of either. He sprayed, tried it, sprayed tried, got ****ed and sprayed, sprayed, sprayed, I don't know if you could say it started, but he did blow the head off the block. Just imagine a 18 or 19:1 cat diesel with a half- 3/4 a can of either in her.

tls88mod
Dirt Full Roller

Total posts: 40
posted February 12, 2002 11:47 PM
The best thing you can with an alcohol carb is drain the bowls after the weekend of racing and fill them with gas. This keeps it from gumming up the needle and seat, and then it's ready to start the next time you go racing.

George Gilliland
Dirt Full Roller

Total posts: 39
posted February 13, 2002 11:55 AM
I always put about two oz. of gas down the carb. before starting the first time at the track. PS after putting in the gas cap the bottle and put it away before starting or you can get more than the engine started.

bkap
Dirt Full Roller

Total posts: 61
posted February 13, 2002 01:01 PM
Jeez, we're not dumping the starter fluid in. We're using aerosol, not a liquid. It doesn't take that much. Besides, our engines aren't THAT high in compression.

neverenoughbrew
Dirt Full Roller

Total posts: 56
posted February 13, 2002 05:44 PM
Always crank engine with ignition off to get some oil pressure. Then give it a splash of gas to start when cold! As you are not familair with alky, WARNING, if it burbs or dies after starting ALWAYS MAKE SURE THERE IS NO FIRE IN CARB, AS AFTER INITIAL FIRE UP, IT IS DRAWING ALKY, WHICH BURNS WITHOUT NOTICABLE FLAME, it is fine to give it another drink of gas, but if it is burning when you do this, you will be nursing some serious burns.
POOF!!!!

PS Anyone using starting fluid is washing down cylinder walls and can bend rods, damage bearings, ect... do not do

[This message has been edited by neverenoughbrew (edited February 13, 2002).]

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