In refining crude oil they distill it to separate out the different products. . It was not. Easy to read. I Have problems with the fuel temp in my 1937 Buick. Adjustable Fuel Regulation From 1 To 4 PSI .220 Inch 7/32 Inch Restriction. He asked about issues and thoughts of what causes vapor lock, so it is just answered in more detail and suggested solutions on how to fix vapor lock. It is as said - of the "paint thinner" family in weight with ehtyl acetate blended in to make it's solvency properties a little "hotter " and stronger. September 21, 2010 in Technical. To keep it on simple terms, several people have confirmed that adding some kerosene, diesel fuel or stove oil will reduce the tendency to vapor lock and will NOT hurt an older model, low compression engine. One needs to have studied Chemistry as I have to actually know how this works. I take this to mean that the separate boiling points of the constituents occur at atmospheric pressure but at higher pressure the resulting mix has a single boiling point. Take a look at the article below. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. To see our price, add these items to your cart. So this thread has been a great find for me particularly at this time. if you were packing them in boxes they would look identical. . THESE INSTRUCTIONS MUST BE READ AND FULLY UNDERSTOOD BEFORE BEGINNING THE . #2. Volatility is a measure of the gasolines tendency to vaporize under a given set of conditions. That is why fuel injection systems push usually 45 to 60 psi on the fuel at all times with a by-pass line - to keep it liquid and keep it moving - so it cannot turn to vapor in the lines. 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. The summer gasoline vaporizes in the line and the heat soak is quicker and longer on hot day's. Thanks again fellows, for such informative posts. TURNING THE ADJUSTMENT SCREW ALL THE WAY IN WILL RESULT IN EXCESSIVE FUEL PRESSURE . Why does this occur only under increased pressure? Holley Bracket Secondary Adjusting Lever Kit Steel Gold Iridited Holley 4150. It takes a lot to hurt today's stainless steel valves, but in an older car be careful - and an exhaust gas temperature gauge is not a bad idea to invest in. Holley Fuel Pressure Regulator Rebuild 12-804 - YouTube 0:00 / 37:53 Holley Fuel Pressure Regulator Rebuild 12-804 DurocShark 309 subscribers Subscribe 10K views 3 years ago I walk through. Spring clothes pins, aluminium foil, wet burlap, etc. This approach is not recommended for higher compression cars made from the mid fifties onwards. Purchased the regulator from Baxter, unit arrived in 4 days.. 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. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. When it burns however, it is an eye and throat irritant, even though it raises octane, burns hotter, easier, and cleaner. Will buy again if I need another one for a different project. 3 0 obj <>stream No mention of vapor lock issues, but engine de-carbon activities. Somewhat of an inconvenience but that's why it's probably cheaper than other places selling the same part number. Holley recommends applying PTFE paste to the NPT thread of the fittings before installation on these applications. 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. 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Of course you may already have this setup - that is the first issue. store There is supposed to a marking on the spring with the correct color, red or gold if it is the low pressure spring. Might have been along the same lines as adding a quart of atf to the engine oil to help quiet noisy hydraulic valve lifters, or for "sludge clean-up" activities? ,