Six Pack issues and rebuilding

[72cudamaan]

I'd be awfully careful about cranking the engine over as well. That much fuel could have hydro locked a cylinder. Then you have a real big problem.

[cudabob496]

I'd be awfully careful about cranking the engine over as well. That much fuel could have hydro locked a cylinder. Then you have a real big problem.

what does hydro locked a cylinder mean?

[spamtank]

Normally, you are compressing an air fuel gaseous mixture which is compressible.  Liquid fuel is incompressible, and the pressure that builds up is tremendous when the piston tries to compress the volume by a ratio of 10 to 1.  This results in bad things happening. 

[tommyg29]

after sleeping on it I think one of the carbs (probably the front because some fuel did come out when I removed that sight plug) was stuck, and the electric pump just filled the cylinders and then then the intake manifold and into the vacuum line to the brake booster, and probably some if not a bunch into the crankcase.
Correct me if Im wrong but what I will do next is remove all spark plugs, drain the oil, try to suck any fuel out the brake booster with a tube, and then put some cheap oil in the engine, and then turn the engine over a few times without plugs (and maybe check compression while Im at it) with the ignition disconnected and electric fuel pump off to circulate a little oil with some flushing action. Then put plugs back in, reconnect everything and try to start it up. And VERY soon after change the oil again.
Of course, I need to also check and repair the carbs.
Sound OK?

PS
What does holly charge for their six pack rebuild/restore service?

[Chryco Psycho]

pull all the plugs , bump the engine over slowly , get all of the fuel possible out of the cylinders , after most of the fuel is out you can crank it over to get the rest out , change the oil , wash the plugs off with brake clean or replace them then you can get after the carbs & clean the needle & seats out & get the float levels set

[erat340]

Perhaps do this , carefully. Pull all 3 sight plugs, key on (dont crank), momentarily! See if fuel starts to flood from any bowl--Key off.

[HP_Cuda]

Since the fuel doesn't do great things for cylinders I'd pull the plugs and add some oil to it so it's not just flushing out fuel.

But depending on how much fuel you are pumping out you will probably be okay.

B

[cudabob496]

Dang, seems like a good reason not to have an electric fuel pump??

[tommyg29]

Thanks for the great advice. Will be picking up some new champion plugs (RJ12YC) and having a busy weekend.
Hopefully I didnt break or bend anything. 

[Chryco Psycho]

if the motor locked up after it was running you should be OK typically the starter will nothave enough power to bend the valves or con rods but if the nmotor is locked up the cylinder have more then 90 cc of fuel in them && it will not compress liquid so it will be badly flooded , especially if it pushed fuel into the brake booster !!

[tommyg29]

oh yeah,
probably at least a gallon of gas came out the uncapped opening in front of the booster.
Now Im trying to figure out how to get a micro fuel line down into the booster to try and get fuel out. Its probably full and maybe ruined.
Will be draining my oil tonight also.
PS
Just drained it and the first couple quarts were oil so I figured, ok, cool. and then a torrent of the lighter than oil fuel started gushing out. Easily more than a gallon, so far. Stuck the plug back in for now before it overflowed my 3 gallon oil bucket.
Checked the brake booster and it seems dry so I should be lucky there.

And another update, there was probably 2 gallons of fuel in the case, and then I pulled the front carburetor and will take a close look at it.
Will put some cheap oil in it and a quart of an engine "flush" oil, put the new plugs in it and run it lightly a few minutes and drain again and put the good oil back in.

[PlumCraZRT]

Dang, seems like a good reason not to have an electric fuel pump??

Many people use the fuel pressure dummy (on/off) sensor connected to a relay to power the fuel pump.  You can't prime the fuel system, but the fuel will shutoff if the engine isn't running (or if you don't get oil pressure).

[tman]

Is the fuel pressure regulated?  If its too high, it can create problems. 

[Chryco Psycho]

Rock Auto lists the 6 pack carb kits for $18 each but they are made by Standard , the genuine Holley kits are about the same price & I would recommend the Holley kits over Standard

[cudabob496]

Many people use the fuel pressure dummy (on/off) sensor connected to a relay to power the fuel pump.  You can't prime the fuel system, but the fuel will shutoff if the engine isn't running (or if you don't get oil pressure).

Yes, best to employ "dummy" control mechanisms whenever possible!