Jocko_51_B3B Posted January 30, 2019 Report Posted January 30, 2019 (edited) My mechanical fuel pump has an integrated fuel filter, but some flatheads have a filter attached to the carburetor inlet. Since the fuel pump has a filter already, is the carb filter really necessary or is it just extra insurance? Integrated Fuel Filter Carburetor Fuel Filter Edited January 30, 2019 by Jocko_51_B3B Quote
Reg Evans Posted January 30, 2019 Report Posted January 30, 2019 Does someone sell a fuel pump block off plate. I can find them for Chevy and Ford but not for Mopar. I would say 2 filters are better than 1. Quote
Merle Coggins Posted January 30, 2019 Report Posted January 30, 2019 The one on the fuel pump is more of a sediment bowl with a screen to collect the bigger pieces. The filter at the carburetor would collect the finer debris to protect the metering jets inside the carb. 1 Quote
Frank Elder Posted January 30, 2019 Report Posted January 30, 2019 1 hour ago, Reg Evans said: Does someone sell a fuel pump block off plate. I can find them for Chevy and Ford but not for Mopar. I would say 2 filters are better than 1. Buy a scrap of plate steel a little bigger than your fuel pump base.....scribe the outline, grind til acceptable and drill 2 holes use the fuel pump gasket and your are in business. Quote
lonejacklarry Posted January 31, 2019 Report Posted January 31, 2019 (edited) 16 hours ago, Reg Evans said: Does someone sell a fuel pump block off plate. I can find them for Chevy and Ford but not for Mopar. Vintage power wagons sells them for $10. The part number is FPBOP. You'll have to make your own gasket. Edited January 31, 2019 by lonejacklarry 2 Quote
JBNeal Posted January 31, 2019 Report Posted January 31, 2019 I had been looking for this last year but did not see it...looks like it comes with a gasket now 1 Quote
Frank Elder Posted February 1, 2019 Report Posted February 1, 2019 You could make one for almost nothing, and a gasket out of a hamburger helper box you've already got at the house anyway......finish up the job and go inside and have supper...mmmm, cheesy mac. 1 Quote
Young Ed Posted February 1, 2019 Report Posted February 1, 2019 12 hours ago, Frank Elder said: You could make one for almost nothing, and a gasket out of a hamburger helper box you've already got at the house anyway......finish up the job and go inside and have supper...mmmm, cheesy mac. I prefer cereal boxes I made some out of mountain dew cases for my 46 back when I got it too. 1 Quote
Jocko_51_B3B Posted February 5, 2019 Author Report Posted February 5, 2019 (edited) Here's another detail that has me wondering... the carburetor inlet fitting is a 5/16 inverted-flare female. The outlet port on the fuel filter has pipe threads. Is there a standard fitting available for connecting the fuel filter to the carburetor inlet? The right fitting must exist, but I'm not finding it for some reason. The parts stores are not much help when it comes to fittings and I would like to avoid wasting time and money on an online ordering mistake. Edited February 5, 2019 by Jocko_51_B3B wording Quote
Jeff Balazs Posted February 5, 2019 Report Posted February 5, 2019 I don't think it is possible to over filter fuel these days. Also if you have deleted the mechanical pump in favor of an electric then it is a good idea to have a real good filter ahead of your electric pump. I have been using large sealed canister filters on my truck and they get changed at 10k mile intervals. Seems to work very well. There is often a lot of crap suspended in under ground storage tanks. You definitely want to do what you can to keep it out of your carb and engine. Jeff 1 1 Quote
ggdad1951 Posted February 5, 2019 Report Posted February 5, 2019 2 hours ago, Jocko_51_B3B said: Here's another detail that has me wondering... the carburetor inlet fitting is a 5/16 double-flare female. The outlet port on the fuel filter has pipe threads. Is there a standard fitting available for connecting the fuel filter to the carburetor inlet? The right fitting must exist, but I'm not finding it for some reason. The parts stores are not much help when it comes to fittings and I would like to avoid wasting time and money on an online ordering mistake. I think you can remove the carb fitting and put a nipple between the two. Quote
Merle Coggins Posted February 5, 2019 Report Posted February 5, 2019 (edited) Check the plumbing isle of your local hardware store. You need a male pipe to female inverted flare fitting. They are commonly available in various sizes. Most auto parts store computer jockeys wouldn't know an inverted flare fitting if it hit them in the nose... If they can't find it in their computer, "We don't have it". EDIT: Oops, I read it wrong. I was thinking you needed a fitting for the fuel pump to go from the pipe thread to inverted flare line. Edited February 5, 2019 by Merle Coggins Quote
JBNeal Posted February 5, 2019 Report Posted February 5, 2019 The last few times that I rebuilt a carb, there was a new brass male-male fitting in the rebuild kit that screwed into the carb...its bore had a seat for the float needle valve, and the fuel filter body screws onto that fitting...I had to put teflon tape on the threads so that the body would orient horizontal 1 Quote
Dodgeb4ya Posted February 5, 2019 Report Posted February 5, 2019 5 hours ago, Jocko_51_B3B said: Here's another detail that has me wondering... the carburetor inlet fitting is a 5/16 double-flare female. The outlet port on the fuel filter has pipe threads. Is there a standard fitting available for connecting the fuel filter to the carburetor inlet? The right fitting must exist, but I'm not finding it for some reason. The parts stores are not much help when it comes to fittings and I would like to avoid wasting time and money on an online ordering mistake. It's a special fitting because of the needle seat required at one end. Both styles shown... 1 3 Quote
ggdad1951 Posted February 6, 2019 Report Posted February 6, 2019 16 hours ago, Dodgeb4ya said: It's a special fitting because of the needle seat required at one end. Both styles shown... yep, now that he jogs my memory, he is correct! 1 Quote
Jocko_51_B3B Posted February 8, 2019 Author Report Posted February 8, 2019 (edited) Problem solved. Head scratching over. I didn't know there are two different types of special fittings for the carburetor inlet. A special thanks to JBNeal for mentioning a rebuild kit as a possible source and to Dodgeb4ya for posting what they look like. I ordered a rebuild kit from DCM and, sure enough, the kit had both types of fittings. I'm guessing that the male/male is for use when installing the fuel filter and the male/female is for use without the filter. Here's what my kit contained...Thanks to all who posted replies. Edited February 11, 2019 by Jocko_51_B3B better wording. 1 1 Quote
Jerry Roberts Posted July 20, 2019 Report Posted July 20, 2019 On 1/30/2019 at 2:07 PM, Reg Evans said: Does someone sell a fuel pump block off plate. I can find them for Chevy and Ford but not for Mopar. I would say 2 filters are better than 1. From Vintage Power Wagons 2017 catalog . Quote
Plymouthy Adams Posted July 20, 2019 Report Posted July 20, 2019 they so easy to make out of a piece of plate steel or aluminum...just outline the gasket used on the pump....cut, drill, install....if aluminum, polish it if you wish... Quote
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