holley 12 804 adjustmentrebecca stroud startup

. Join Date: Nov 2007 Posts: 22035 Share Tweet #2 ${cardName} unavailable for quantities greater than ${maxQuantity}. Could you explain a little more about how you would run the bypass? I am not going to quote all you said, but the flooding from the electric pump was caused by too much fuel pressure over coming the needle seat (or whatever kind of seat it has for the bowl) of the carburetor. Chemistry does NOT work that way - just like adding more any one ingredient to a cake mix will make the cake better. The Holley 12-804 is a 1 to 4 range PSI regulator. In fact I can completely remove the adjusting screw and it still does not go down to 3psi. Reviewed in the United States on September 4, 2017. Accurate description. That's where the pressure was going. The regulator that was shipped to me has an internal spring from a different model of regulator, the spring should be red. All Holley regulators are pre-set at the factory so there is no guesswork when first installing the regulator. Holley Manufacturer Part Number 12-804 Manufacturer Holley Assembled Product Dimensions (L x W x H) 3.50 x 3.50 x 2.50 Inches Warranty Warranty information 90 DAY REPLACEMENT IF DEFECTIVE Warnings Warning Text proposition 65 reasons:titanium dioxide, other chemicals WARNING - California Proposition 65 None Report incorrect product information This product is universal and applies to all vehicles. In fractional distillation (the refining of oil) - what we call "mineral spirits", "paint thinner", "kerosene" and "diesel fuel" all ALL "heavier" hydrocarbons (pretty much in that order) than what we call gasoline - in that they occur lower in the distillation tower and condense at lower temperatures back into liquid before what we call "gasoline" does. I have the one I have set up in a deadhead setup. These cars have the carburettor mounted in "V" of the engine with exhaust manifolds running along each side of the carburettor which combined with under hood engine heat makes these cars very susceptible to vapor lock. There was a problem adding this item to Cart. Another thing you can do is wire the fuel pump to be hot in run and start through an oil pressure switch - so if the motor shuts off or looses oil pressure the fuel pump shuts off too. None of these contain lead and so should not damage a catalytic converter if you have one, HOWEVER too much IMCT will prolong the burn and may result in unburnt - STILL burning HOT gas being exhausted in the exhaust cycle. No mention of vapor lock issues, but engine de-carbon activities. Holley 12-807 Fuel Pressure Regulator Diaphragm Repair Kit made by Holley, for as low as $9.21. Overview. From start to finish, Holley has the parts to make your dream a reality. Plain WATER has great cooling properties, but under pressure will boil at a lower temperature than anti-freeze mixed with water - up to a certain point. This will keep your pressure steady and have instant pressure change when adjusting. Thanks again fellows, for such informative posts. Shipping cost, delivery date, and order total (including tax) shown at checkout. The Holley Fuel Pressure Regulator (Part No. Enhancements you chose aren't available for this seller. The reg takes 3/8" fittings and the gauge takes 1/8" fittings. This satin finish regulator feature 3/8 pipe thread . Most certainly it will be my plan to fully explore the possibility of "treating the Fuel", with hopes that diesel fuel will make just enough difference to avoid any re-engineering. Prewar cars have very low compression and will run better on gas that has some kerosene added. The 12-803 4.5-9 psi spring is plain, (just the gold colored plating) the spring is accessible and replacable The cheap dial units are terrible. Average for the last 12 months. [endif]-->, . Join Date: Nov 2007 Posts: 22035 Share Tweet #2 ${cardName} unavailable for quantities greater than ${maxQuantity}. Could you explain a little more about how you would run the bypass? I am not going to quote all you said, but the flooding from the electric pump was caused by too much fuel pressure over coming the needle seat (or whatever kind of seat it has for the bowl) of the carburetor. Chemistry does NOT work that way - just like adding more any one ingredient to a cake mix will make the cake better. The Holley 12-804 is a 1 to 4 range PSI regulator. In fact I can completely remove the adjusting screw and it still does not go down to 3psi. Reviewed in the United States on September 4, 2017. Accurate description. That's where the pressure was going. The regulator that was shipped to me has an internal spring from a different model of regulator, the spring should be red. All Holley regulators are pre-set at the factory so there is no guesswork when first installing the regulator. Holley Manufacturer Part Number 12-804 Manufacturer Holley Assembled Product Dimensions (L x W x H) 3.50 x 3.50 x 2.50 Inches Warranty Warranty information 90 DAY REPLACEMENT IF DEFECTIVE Warnings Warning Text proposition 65 reasons:titanium dioxide, other chemicals WARNING - California Proposition 65 None Report incorrect product information This product is universal and applies to all vehicles. In fractional distillation (the refining of oil) - what we call "mineral spirits", "paint thinner", "kerosene" and "diesel fuel" all ALL "heavier" hydrocarbons (pretty much in that order) than what we call gasoline - in that they occur lower in the distillation tower and condense at lower temperatures back into liquid before what we call "gasoline" does. I have the one I have set up in a deadhead setup. These cars have the carburettor mounted in "V" of the engine with exhaust manifolds running along each side of the carburettor which combined with under hood engine heat makes these cars very susceptible to vapor lock. There was a problem adding this item to Cart. Another thing you can do is wire the fuel pump to be hot in run and start through an oil pressure switch - so if the motor shuts off or looses oil pressure the fuel pump shuts off too. None of these contain lead and so should not damage a catalytic converter if you have one, HOWEVER too much IMCT will prolong the burn and may result in unburnt - STILL burning HOT gas being exhausted in the exhaust cycle. No mention of vapor lock issues, but engine de-carbon activities. Holley 12-807 Fuel Pressure Regulator Diaphragm Repair Kit made by Holley, for as low as $9.21. Overview. From start to finish, Holley has the parts to make your dream a reality. Plain WATER has great cooling properties, but under pressure will boil at a lower temperature than anti-freeze mixed with water - up to a certain point. This will keep your pressure steady and have instant pressure change when adjusting. Thanks again fellows, for such informative posts. Shipping cost, delivery date, and order total (including tax) shown at checkout. The Holley Fuel Pressure Regulator (Part No. Enhancements you chose aren't available for this seller. The reg takes 3/8" fittings and the gauge takes 1/8" fittings. This satin finish regulator feature 3/8 pipe thread . Most certainly it will be my plan to fully explore the possibility of "treating the Fuel", with hopes that diesel fuel will make just enough difference to avoid any re-engineering. Prewar cars have very low compression and will run better on gas that has some kerosene added. The 12-803 4.5-9 psi spring is plain, (just the gold colored plating) the spring is accessible and replacable The cheap dial units are terrible. Average for the last 12 months. [endif]-->,