fuel line replacment

[foilled]

redoing all fuel lines. the line from tank to pump is 3/8s. the rest after pump is 5.16. this is omc 5.7 87'. that size should is correct or should i keep current setup?

 

[foilled]

previous owner just has a metal screen behind carb inlet im doing a new filter as well does anyone know where to get a fuel filter for inboards. will this one work in a outboard?

 

[foilled]

[No message]

 

[Scott Danforth]

redoing all fuel lines. the line from tank to pump is 3/8s. the rest after pump is 5.16. this is omc 5.7 87'. that size should is correct or should i keep current setup?

you should have 3/8" metal lines from the water separating filter to the fuel pump. and the same 3/8" metal fuel line from the fuel pump to the carb

the filter in the carb will depend on which carb you have, holley or quadrajet. available at any automotive store, however your primary fuel filter should be the fuel/water separator filter between your fuel tank and the fuel pump.

between the fuel tank and the fuel filter should be USCG A2 hose





NO, bad bad advice

no plastic filters allowed in an I/O fuel system period - outboards yes, I/O's no. if an outboard leaks fuel and blows up, the boat survives. if an I/O leaks fuel into the bilge and blows up, it takes divers weeks with small nets to find all the bits.

https://www.uscgboating.org/regulations/assets/builders-handbook/FUELSYSTEM1.pdf

 

[foilled]

you should have 3/8" metal lines from the water separating filter to the fuel pump. and the same 3/8" metal fuel line from the fuel pump to the carb

the filter in the carb will depend on which carb you have, holley or quadrajet. available at any automotive store, however your primary fuel filter should be the fuel/water separator filter between your fuel tank and the fuel pump.

between the fuel tank and the fuel filter should be USCG A2 hose






NO, bad bad advice

no plastic filters allowed in an I/O fuel system period - outboards yes, I/O's no. if an outboard leaks fuel and blows up, the boat survives. if an I/O leaks fuel into the bilge and blows up, it takes divers weeks with small nets to find all the bits.

https://www.uscgboating.org/regulati...UELSYSTEM1.pdf

sounds good is there any general filters for a holley. the inlet to carb is custom from the previous owner and i dont even think the regular filter would fit. also there are all rubber lines now no metal. is that alright? fuel pump and filter have barbs and rubber lines. all metal was removed

 

[Scott Danforth]

the ONLY way that rubber lines are alright is if they are USCG A2 lines. they will be stamped USCG A2 every 3-4 inches.

if you have regular automotive fuel hoses, that is not compliant.

 

[foilled]

the ONLY way that rubber lines are alright is if they are USCG A2 lines. they will be stamped USCG A2 every 3-4 inches.

if you have regular automotive fuel hoses, that is not compliant.

https://www.amazon.com/gp/product/B0002CAD9Y/ref=ox_sc_act_title_3?smid=ATVPDKIKX0DER&psc=1 so is this not the correct stuff? it says usgc approved but seems to be a1 - 15

 

[Scott Danforth]

I apologize, I typed A2 (Hard hose for fuel fill) vs A1 hose (vent and supply).

the A1-15 is formulated for 15 grams of permeation over a 24 hour period. that hose would be fine.

if the prior owner removed the fuel/water filter, then I suggest spending $25 and getting a new fuel/water filter as well

 

[foilled]

I apologize, I typed A2 (Hard hose for fuel fill) vs A1 hose (vent and supply).

the A1-15 is formulated for 15 grams of permeation over a 24 hour period. that hose would be fine.

if the prior owner removed the fuel/water filter, then I suggest spending $25 and getting a new fuel/water filter as well

water separator is there. just looking for a good in line one. how would this work? heres a second filter to, https://www.holley.com/products/fue...filters/filters/carbureted_filters/parts/6153 i just dont know which for marine

 

[Scott Danforth]

not needed if you have the 12 micron fuel/water filter which filters better than any of those add-on filters

unless you like wasting money.