Coffee 11-12-11
- SMITTY
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- Joined: Sun. Dec. 11, 2005 12:43 pm
- Location: West-Central Mass
- Stoker Coal Boiler: EFM 520 Highboy
- Coal Size/Type: Rice / Blaschak anthracite
- Other Heating: Oil fired Burnham boiler
Already did that before I adjusted the fuel pressure. Blew out the mains & primaries, and all the air passages. Adjusted the float height & drop too. I wish it were that easy ... There was a bit of crap in the bowls that looked like fuel line material ... which didn't surprise me, as I used a length of air hose as fuel line after the regulator. I figured there'd be some crap in there, especially with having to force the hose on some fittings. But there really wasn't all that much in there. It's all clean now anyway. Maybe as a last ditch effort I'll pull the air horn again & try 1/2" instead of 7/16" float gap.
Probably try .042" tomorrow on the plugs too. This is getting aggravating ....
Probably try .042" tomorrow on the plugs too. This is getting aggravating ....
- Poconoeagle
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- Joined: Sat. Nov. 08, 2008 7:26 pm
- Location: Tobyhanna PA
ya blew out the power valves.....
leave em at .60 its a fuel issue....
typical holly power valve issue
leave em at .60 its a fuel issue....
typical holly power valve issue
- CoalHeat
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You can tell a lot about what's going on with an engine with a vacuum gauge, but why are that guy's hands blue??
- Poconoeagle
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by night hes a procktologist...errrr a ford mechanic
- SMITTY
- Member
- Posts: 12525
- Joined: Sun. Dec. 11, 2005 12:43 pm
- Location: West-Central Mass
- Stoker Coal Boiler: EFM 520 Highboy
- Coal Size/Type: Rice / Blaschak anthracite
- Other Heating: Oil fired Burnham boiler
Blue lube!
Like I said - I wish it were that easy Pocono. I have a 1404 Edelbrock carb. The only Holley part is the 12-803 bypass regulator.
Like I said - I wish it were that easy Pocono. I have a 1404 Edelbrock carb. The only Holley part is the 12-803 bypass regulator.
- Poconoeagle
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Whoops....so sorry so hmmm lemee stink a sec
check ball under the acel pump?
gonna look at a pic of the carb brb
check ball under the acel pump?
gonna look at a pic of the carb brb
- Poconoeagle
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- Joined: Sat. Nov. 08, 2008 7:26 pm
- Location: Tobyhanna PA
Under those 2 kidney shaped covers at each end of the air horn, are the metering rods. THere is a spring in there with it. For whatever reason, the spring binds up on little burrs on the rod. Then, the rod no longer goes up and down. A main cause that I have noticed for either shitty fuel economy or fuel starvation like you describe. Usually both together.
or fuel inlet valve sticking....
.338 at 50 yards........
cracked hose on suction side of pump?
pressure and volume test.......
( fuel injection and computer engine management????? )
or fuel inlet valve sticking....
.338 at 50 yards........
cracked hose on suction side of pump?
pressure and volume test.......
( fuel injection and computer engine management????? )
- SMITTY
- Member
- Posts: 12525
- Joined: Sun. Dec. 11, 2005 12:43 pm
- Location: West-Central Mass
- Stoker Coal Boiler: EFM 520 Highboy
- Coal Size/Type: Rice / Blaschak anthracite
- Other Heating: Oil fired Burnham boiler
I'd try the .338 ... but I can't afford the ammo ... let alone another carb!
I haven't checked the metering rods, because part-throttle driveability is phenominal - better than most FI systems. The first time I experienced the problem, I was going up a real steep, long hill in town here where I can get up to 70 mph to see how she performed. After a couple seconds of pulling real strong at full throttle, it then started to surge ... then the super loud BOOOOOOOOOOG ..... until I let up on the throttle and the float bowls (presumably) refilled.
Now it's got to the point where it does it part throttle on hills. Seems to have gotten worse. But then sometimes it doesn't do it at all! Strange. It's the Jimmy virus ....
I'm thinking maybe this setup, with the stock TBI pump with this style regulator is flowing fine at lower speeds, but is unable to keep up at full throttle. But that makes no sense, as I've heard of 300 hp V8 conversions using the same setup??? I don't get it.
I haven't checked the metering rods, because part-throttle driveability is phenominal - better than most FI systems. The first time I experienced the problem, I was going up a real steep, long hill in town here where I can get up to 70 mph to see how she performed. After a couple seconds of pulling real strong at full throttle, it then started to surge ... then the super loud BOOOOOOOOOOG ..... until I let up on the throttle and the float bowls (presumably) refilled.
Now it's got to the point where it does it part throttle on hills. Seems to have gotten worse. But then sometimes it doesn't do it at all! Strange. It's the Jimmy virus ....
I'm thinking maybe this setup, with the stock TBI pump with this style regulator is flowing fine at lower speeds, but is unable to keep up at full throttle. But that makes no sense, as I've heard of 300 hp V8 conversions using the same setup??? I don't get it.
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I hesitate to chime in because I have little expertise. I just can't forget a 1949 Plymouth I had that did that same thing. It turned out to be a porous bronze filter in the gas tank that was clogged. I managed to put a hole in it and no more trouble.
Could it be simply a clogged or partially clogged gas line from the tank?
Could it be simply a clogged or partially clogged gas line from the tank?
- SMITTY
- Member
- Posts: 12525
- Joined: Sun. Dec. 11, 2005 12:43 pm
- Location: West-Central Mass
- Stoker Coal Boiler: EFM 520 Highboy
- Coal Size/Type: Rice / Blaschak anthracite
- Other Heating: Oil fired Burnham boiler
I'm sure anything is possible, but the only reason I would think no on that one is because some days I'll fire it up, and it runs perfect. Then today, I had a hard time starting it, and the bog was happening on smaller hills and at lower speeds.
I'm starting to think maybe this fuel pump is junk, even though the previous owners said it was new when I bought it in '10. The alternator was also new, but that took a *censored* on me a few days ago too ....
I'm starting to think maybe this fuel pump is junk, even though the previous owners said it was new when I bought it in '10. The alternator was also new, but that took a *censored* on me a few days ago too ....
- Poconoeagle
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dont feel bad Smitty... I am joining ya soon
building a stroker 350 chev... .60 over bore , 4 bolt, nice comp cam...big valve heads....nice manifold......msd.....electric h20 pump
headers....rollers.....dual row....vette oil pump.....forged blah.....crome moly one piece push rods...... and true 750 dual pumper
making a '70 monte go even faster....high stallverter.....
its a midnite project kinda thing....just finished tapping all 3 million bolt holes looking around and realized they sent a spewick (buick) cam !!! parts guys these days!!!!! ya never know
ahhh so its intermittant.....drive it till it runs dry and pull over and look at da flo.....
building a stroker 350 chev... .60 over bore , 4 bolt, nice comp cam...big valve heads....nice manifold......msd.....electric h20 pump
headers....rollers.....dual row....vette oil pump.....forged blah.....crome moly one piece push rods...... and true 750 dual pumper
making a '70 monte go even faster....high stallverter.....
its a midnite project kinda thing....just finished tapping all 3 million bolt holes looking around and realized they sent a spewick (buick) cam !!! parts guys these days!!!!! ya never know
ahhh so its intermittant.....drive it till it runs dry and pull over and look at da flo.....
- SMITTY
- Member
- Posts: 12525
- Joined: Sun. Dec. 11, 2005 12:43 pm
- Location: West-Central Mass
- Stoker Coal Boiler: EFM 520 Highboy
- Coal Size/Type: Rice / Blaschak anthracite
- Other Heating: Oil fired Burnham boiler
Sweet car - make sure you post pics!!
Yeah was thinking of doing that tomorrow just to confirm 100%. As soon as it dies I'll turn it off & yank the air horn. I'm expecting dry bowls ..... so ..... if this is the case, I wonder if I could buy an external fuel pump & have it pull through the old, dead one? I've heard of guys doing this before, but not sure if this particular model has that ability. One way to find out, I guess ... but it's gonna cost another $100 ....
Gotta do what I gotta do, I guess.
Another thing I was thinking about ...... the Holley reg. says to run the bypass line the same size as the supply & carb lines. On this setup, the return is the factory 5/16" line .... but that tells me if you restrict the bypass with a small line that you just RAISE fuel pressure. So with that in mind I doubt this has anything to do with it. Fuel volume seems to be my issue. I think I'll try & fill a gas can with the carb line tomorrow & see how that flows .....
Yeah was thinking of doing that tomorrow just to confirm 100%. As soon as it dies I'll turn it off & yank the air horn. I'm expecting dry bowls ..... so ..... if this is the case, I wonder if I could buy an external fuel pump & have it pull through the old, dead one? I've heard of guys doing this before, but not sure if this particular model has that ability. One way to find out, I guess ... but it's gonna cost another $100 ....
Gotta do what I gotta do, I guess.
Another thing I was thinking about ...... the Holley reg. says to run the bypass line the same size as the supply & carb lines. On this setup, the return is the factory 5/16" line .... but that tells me if you restrict the bypass with a small line that you just RAISE fuel pressure. So with that in mind I doubt this has anything to do with it. Fuel volume seems to be my issue. I think I'll try & fill a gas can with the carb line tomorrow & see how that flows .....
- Poconoeagle
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- Joined: Sat. Nov. 08, 2008 7:26 pm
- Location: Tobyhanna PA
i havnt payin close enough attention.... so splain it again...
was a injected car.....2 lines.... you feeding the carb with mechanical pump, sucking thru old electric?
if its a mechanical, fill a antifreeze jug, suck out of that and roadtest..... go down to coney island hot dog in woostah and do some burnouts.....
was a injected car.....2 lines.... you feeding the carb with mechanical pump, sucking thru old electric?
if its a mechanical, fill a antifreeze jug, suck out of that and roadtest..... go down to coney island hot dog in woostah and do some burnouts.....