I have heard true lead (LeadMax2000 or simillar) may do this as well? [endif]-->. You need to be a member in order to leave a comment. I feel lucky that this did not damage my generator because at one point I saw 30lbs of pressure while trying to start the generator. Holley carburetors have powered every NASCAR(R) Sprint(R) Cup team and nearly every NHRA(R) Pro-Stock champion for four decades. Lots of Chinese Holley 12-803, 804 etc knock-offs are available. It seemed to work fine for a while after I dialed it into 2psi at idle, but now it reads 6psi and it won't adjust down to 3psi. A: Includes initial monthly payment and selected options. As you can see from what it replaces - it is "hot" solvent - but not quite as hot as acetone in its ability to dissolve other things. A: Holley Carburetor Fuel Pressure Regulator 1 To 4 Psi Bottom Inlet Sides Are Outlets from Pacific Customs Unlimited your best source for Street, Off Road, Sandrail, Dune Buggy, Manx, Rock Crawler, Volksrod, or Mud Buggy VW Parts. Adding heavier weight hydrocarbons WILL raise the vapor point under pressure - usually enough to keep the fuel from vaporizing in the line or boiling off in the carburetor bowl while flowing. The lower I can get with this pressure is 3.5 psi (at max adjustment). Great product from holley, but these do not come with the supplied tap that's suppose to be in box for the 2 machine screws that mount the regulator to the bracket. CBPN804A Swinging Drawbar Pin Kit Ford NAA 501 600 700 800 900 2000 3000 4000. We work hard to protect your security and privacy. Please choose a different delivery location. In the early days of the oil business the demand was for kerosene or coal oil. The regulator that was shipped to me has an internal spring from a different model of regulator, the spring should be red. Some have reported more power, easier starting and cooler running especially in very low compression cars of the twenties and early 30s. 100% Satisfaction Guaranteed CBPN804A Swinging Drawbar Pin Kit Ford NAA 501 600 700 800 900 2000 3000 4000 satisfaction guarantee the daily low price westernnorthndc.org, US $11.9 3000 501 Also services earlier models (1953 to 1964) using swinging drawbar: NAA 600 For Ford Tractors 2000 4000 (1965 and up) Jubilee . They sold more gas than coal oil. Right & left, Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.Learn more how customers reviews work on Amazon. I am having problems understanding why you say OD is wrong and Rusty is correct, it seems to me you are all saying much the same and that is that gasoline is made up of many components each having different boiling points and the components with the lowest boiling point are the cause of vapour lock. Amazon has encountered an error. In a deadhead design the fuel comes into the regulator from the bottom past a check ball which is held open by a pin on the diaphragm. Had to reset to Zero. You can do a Google search for it, though. A vapor lock condition would be caused. I like the attached simple explanation of the issue. Use with standard pump only - not recommended for maximum pressure pumps. Point and secure it into a clean container Inlet pressure of 7 psi limitation means your pump can not put out more than 7 psi to the regulator for it to properly operate. Enhancements you chose aren't available for this seller. I will be trying one of these but am curious what is the active ingredient(s). Can anyone speak to the validity of this or is anyone currently using an additive for this? Holley 12-804 Holley Fuel Pressure Regulators JEGS 41040 JEGS Fuel Pressure Gauges Now you need fittings. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. The point is the 0-140 regulators (they are all coming out of China now-a-days) will not regulate lower than about 20 reliably so you need a staged system - and even Holley says so on the 803BP design set up. Purchased the regulator from Baxter, unit arrived in 4 days.. Yes the light elements will still be in there. One is a deadhead and one is a by-pass. September 21, 2010 in Technical. Street/Strip Carbureted Applications The Holley 12-804 is a 1 to 4 range PSI regulator. Please try again. That's not to say that adding something like kersene won't help, but it can't eliminate the volatile components. 3 0 obj <>stream The reliable, albiet slower, stovebolts never suffered vapor lock because the fuel pump and lines were up front in the airstream of the engine fan. 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.