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Author Topic: uneven fuel distribution in 2.0  (Read 463 times)

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Offline LongTimeFordMan

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uneven fuel distribution in 2.0
« on: October 17, 2020, 01:13:01 PM »
hi..
has anyone experienced uneven fuel.distribut ion between cyllenders in a 2.0?

I installed a new factory jetted weber DGV on my 73 wagon and drive moderately daily. manual choke always full open except to start.

Stock rebuild, 5000 miles, stock cam and cyls 2 and 3 run rich but 1 and 4 lean.

no vacuum leaks, compression 170 +- 10 on all cyls.all.ign wires good. pertronix flame.thrower ign.

car runs ok,  16-18 MPG in town 23-26 on the highway.

the weber primary and secondary are reversed from the original 5200. i suspect possibly just the manifold design?
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Red 1973 pinto wagon DD, SoCal desert car, Factory 4 speed, 3.40 gears, Stock engine, 14" rims and tires, 60 K original miles

Offline Wittsend

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Re: uneven fuel distribution in 2.0
« Reply #1 on: October 18, 2020, 11:52:23 AM »
Are the primaries on the inside or outside. If inside then likely yes the design might be the issue as the air/fuel would follow the shortest path and 1-4 cause the flow to need to pull away to the outer runners. What happened with the SU's?
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Offline LongTimeFordMan

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Re: uneven fuel distribution in 2.0
« Reply #2 on: October 18, 2020, 06:12:32 PM »
the primary is on the inside toward the engine...since the weber is reverse of the holley 5200

The SUs worked well but i had the.same.probl em.with 2,3 running rich and 1 ,4 lean.with the new manifold. the other one with the plenum had better distribution

i think it was charge robbing..

im re doing the new one to have a plenum
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Red 1973 pinto wagon DD, SoCal desert car, Factory 4 speed, 3.40 gears, Stock engine, 14" rims and tires, 60 K original miles
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