#1 Cylinder seems dead.

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VonCramp said:
So many different things going on at once. Carb float isn't staying set as evidenced by site glass. The fuel regulator is adjusted all the way out but gauge reads 13 psi. The #1 cylinder stays cold even at operating temp of 180*. The cam is a solid roller and the rocker arms are pro comp rollers. The hot cylinder reads 160 and the dead cylinder reads 170. The fuel regulator did show 6 psi for about 5 minutes of run time and then after that it ran up to 13psi. Float bowl filled all the way up. Is it possible that something is causing the fuel pressure to increase causing the needle seat to malfunction in turn flooding the engine and fouling plugs?
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Let me take a wild guess here and say that fuel pressure gauge is liquid-filled?...
Unless you have a plugged intake runner on the number one your problem is beneath the valve cover on the number one cylinder..
 
Are you sure the valves are moving on that cylinder? Have you pulled the valve covers off and watch them move as the engine was rotating?
 
j par said:
Let me take a wild guess here and say that fuel pressure gauge is liquid-filled?...
Unless you have a plugged intake runner on the number one your problem is beneath the valve cover on the number one cylinder..
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The gauge is liquid filled. I will make a video for youtube of the engin .
 
gliderider06 said:
Are you sure the valves are moving on that cylinder? Have you pulled the valve covers off and watch them move as the engine was rotating?
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I cycled the left bank and readjusted the valves. Swapped #1 and 2 plug wires. Still dead cylinder.
 
VonCramp said:
The gauge is liquid filled. I will make a video for youtube of the engin .
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Okay after that liquid-filled gauge starts heating up it will read incorrectly.. if you had 16 lb of fuel pressure at your carburetor it be gushing out of every orifice and flooding your car and black smoke would be pouring out of the tailpipe... If you could keep it running so that's not it... I don't need a video of it your number one cylinder under the valve cover is your problem. I'm do the 5 screws take it off send make a little cardboard dampener to go around the bottom of your rockers so the oil doesn't spill out onto your exhaust and start the car. Preferably after you've already had it warmed up and it won't be on high idle shooting oil everywhere... observe the number one rockers and make sure they're moving just the same as the others...
 
I know you're hoping it'll be some easy little twizzly fix and I hope it is. And it's still good be but you've got to find it... honestly I don't see anything being that expensive just time consuming...
 
Can you spin all the push rods when they're on the cam base? I had an instance on a Ford 302 (ahem, I know...) where I got a little too quick setting the lash and I had a push rod jump outta the lifter. That cylinder like you describe was dead.
 
66 Valiant wagon said:
Can you spin all the push rods when they're on the cam base? I had an instance on a Ford 302 (ahem, I know...) where I got a little too quick setting the lash and I had a push rod jump outta the lifter. That cylinder like you describe was dead.
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I will adjust them this afternoon and check valve operation. Thanks!
 
Drain the liquid out of the fuel pressure gauge. It will settle down.
 
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