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06-20-2002, 06:48 AM
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CC Member
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Join Date: Dec 2000
Location: Broken Arrow. OK ( South Tulsa), USA,
OK
Cobra Make, Engine: 66 COBRA FE 427 /4SP. (HCS Coupe w/ 408 Stroker and TKO 600 -sold)
Posts: 5,595
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Not Ranked
Liquid Lock?
I thought I would toss this out since there are so many of us experiencing many different things for the first time.
I recently participated in a series of "High Speed Touring Events" at Hallett here in Tulsa on a road courses and then Saturday at the drags. I was unhappy with my Holley Carb's performance so late Saturday I switched carbs the new one's floats stuck open and flooded my engine. Missed my next event. Anyway I pushed the car in my trailer and took it home. I tried starting the Cobra Monday and realized I had left my key on and run my batt down. Out came the charger for a few hours. Tried to start the car again but all it would do was kind of bump (engine would not turn over). Didn't touch it untill last night still wouldn't turn over. Checked battery-OK, Checked grounds-OK, Checked all possible connections-OK. Don Morris a fellow Cobra owner told me he thought I had "Liquid Lock". Solution pull all my plugs to let the fluid escape. Easier said than done in a 428.
Long story short I pulled the right side plugs and still engine would not turn over. On to the left side and pulled plugs 5,6,&7, still would not turn over. (I am thinking something serious is wrong). Finally, pulled #8 plug and hit the start switch and about a quart of gas shot out of the spark plug hole and the engine turned over just fine. Starts and runs like always just not "Fluid Locked".
Just another thing to check. By the way I put the first carb back on and everything is just fine with the Snake. 
__________________
Sunshine, Asphalt and no stop signs...Perfect
"Let's roll"
"Be part of Something Good
......Leave Something Good Behind!"
from CD "Long Road Out of Eden"
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06-20-2002, 10:11 AM
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CC Member
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Join Date: Mar 2002
Location: so cal,
Cal
Cobra Make, Engine: I used to fix them for a living
Posts: 2,563
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Not Ranked
You "hydraulic'd" the motor. That is a very good way to bend a connecting rod and hammer the bearings. Liquid gasoline is not compressable. Also, if you filled a cylinder with gas, I assure you that the oil got full O' gas as well.
__________________
In a fit of 16 year old genius, I looked down through the carb while cranking it to see if fuel was flowing, and it was. Flowing straight up in a vapor cloud, around my head, on fire.
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06-20-2002, 10:23 AM
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CC Member
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Join Date: Dec 2001
Location: San Diego,
CA
Cobra Make, Engine:
Posts: 2,979
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Not Ranked
Mr Fixit is exactly right.
I have had the same thing happen to me.
Float stuck and while trying to figure out what was going on the key was on so the electric fuel pump kept pushin gas for a few minutes and it all went into the cylinder with the intake valve open. It sat like that for a couple of days. couldn't turn over until I removed plugs but then i realized it could have seeped passed the rings into the crankcase. Sure enough when I changed the oil there gas in it.
__________________
Remember, It's never too early to start beefing up your obituary.
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07-07-2002, 12:15 PM
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CC Member
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Join Date: Jan 2002
Location: Northern California,
CA
Cobra Make, Engine: -Sold- Contemporary 427S/C # CCX-3152 1966 427 Med Rise Side Oiler, 8v 3.54:1 Salisbury IRS, Koni's.. (Now I'm riding Harleys)
Posts: 2,567
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Not Ranked
you may also want to change your oil now..
__________________
michael
A man that is young in years, may be old in hours, if he have lost no time. But that happeneth rarely. Generally, youth is like the first cogitations, not so wise as the second. For there is a youth in thoughts, as well as in ages... Sir Francis Bacon (1561-1626)
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07-13-2002, 10:43 AM
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CC Member
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Join Date: Jun 2001
Location: Washington DC Metro (Virginia),
VA
Cobra Make, Engine: Classic Roadsters, Tweaked 351W, T-5Z, CRII Tech Support Team.
Posts: 1,895
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Not Ranked
May also want to squirt some oil into the cylinders with the spark plugs out and turn the motor over with the starter to oil the rings. Fuel strips the rings of oil. If you fire it up before doing this, you could damage the rings or cylinder bores.
Then add some top oil (STP, etc.) to the fuel for the remaining tankfull. |
07-13-2002, 04:01 PM
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CC Member
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Join Date: Aug 2000
Location: Chicago,
IL
Cobra Make, Engine: ERA 454 S.O.
Posts: 1,684
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Not Ranked
Clois:
Why are changing the plugs difficult on your 428? I change all 8 of mine in less than 15 minutes with only one wrench set-up. Is a B&B that much different tham an ERA? Just curious.
__________________
Jeff
“If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough horsepower.”
Mark Donahue
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07-13-2002, 04:11 PM
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Senior Club Cobra Member
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Join Date: Mar 2001
Location: Rescue CA USA,
Posts: 1,613
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Not Ranked
And I bet you are REALLY glad that you had the coil wire disconnected before you cranked it!!  |
08-15-2002, 12:08 PM
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Senior Club Cobra Member
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Join Date: Jul 2002
Cobra Make, Engine:
Posts: 15,712
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Not Ranked
You would think the gas would drain past the rings after sitting all night! Man, thats some TIGHT piston\ring combo you got there, ha ha!
Ernie
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08-16-2002, 07:27 AM
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CC Member
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Join Date: Dec 2000
Location: Broken Arrow. OK ( South Tulsa), USA,
OK
Cobra Make, Engine: 66 COBRA FE 427 /4SP. (HCS Coupe w/ 408 Stroker and TKO 600 -sold)
Posts: 5,595
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Not Ranked
Liquid lock
Jeff et al,
Just getting back to this thread and wanted to answer some of your questions re: liquid lock.
My plugs on the left side of my engine are extremely difficult to get to because my steering column extends within one inch of my heads and plugs. Also, my #8 plug is very close to my firewall. Right side is a snap left side is a pain.
One other thing was that after I realized my problem I did lube all my cylinders while I had the plugs out and drained all my oil. A stuck carb float can really be a pain in the A$$. I also learned a long time ago to disconnect the coil wire when bumping the engine. I have hope this helps someone else on this site. As usual all of you Cobra guys are the best.
Clois Harlan
__________________
Sunshine, Asphalt and no stop signs...Perfect
"Let's roll"
"Be part of Something Good
......Leave Something Good Behind!"
from CD "Long Road Out of Eden"
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