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Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: chessie4905 on July 04, 2016, 05:13:58 PM

Title: 37or45
Post by: chessie4905 on July 04, 2016, 05:13:58 PM
What degree flare fittings does the 4905 use in fuel system at filters 38° or 45° ? Too lazy to look it up tonight
Title: Re: 37or45
Post by: Jim Eh. on July 05, 2016, 07:50:28 AM
Double post
Title: Re: 37or45
Post by: Jim Eh. on July 05, 2016, 07:54:44 AM
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 (http://lenzinc.com/sites/default/files/301-6-6_0.jpg)  with little notches on the crowns of the hex.
Title: Re: 37or45
Post by: chessie4905 on July 05, 2016, 11:19:35 AM
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.
Title: Re: 37or45
Post by: Jim Eh. on July 05, 2016, 09:12:49 PM
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
Title: Re: 37or45
Post by: chessie4905 on July 07, 2016, 05:27:35 PM
Have a 24 volt Airco pump I'm installing to flush injectors with Lucas fuel injector cleaner. Will leave in place for priming filters.