37or45

[chessie4905]

What degree flare fittings does the 4905 use in fuel system at filters 38° or 45° ? Too lazy to look it up tonight

[Jim Eh.]

Double post

[Jim Eh.]

Usually fuel systems use brass fittings which are mostly 37 deg SAE. Some sizes are compatible with each other, some are not.

SAE fittings (usually) are marked ... http://lenzinc.com/sites/default/files/301-6-6_0.jpg  with little notches on the crowns of the hex.

[chessie4905]

Thanks. Hooking up electric fuel pump for priming when changing filters and also to run some fuel cleaner/conditioner through injectors to free up rack from sticking from long sit.

[Jim Eh.]

For an easy button solution try this kit. We use an elcheapo 12v pump from Princess Auto or Harbour Frieght (instead of the pressure sprayer) and this connector. If you ever lose fuel prime on a Mercedes engine it's this or no start.
https://ddcsn-ddc.freightliner.com/cps/rde/xbcr/ddcsn/18SP610.pdf

[chessie4905]

Have a 24 volt Airco pump I'm installing to flush injectors with Lucas fuel injector cleaner. Will leave in place for priming filters.