Sunday, March 30, 2014

Onan efi manifold injector top fittings

These yamaha injectors need a 11 MM pocket in the top fittings.
           Going to use these 3/4 stainless bolts to make fittings
   Cut the heads off, plunge cut with an end mill to get a flat spot and center   drilled to get a good start for drilling the feed tube hole.
                                                Fixing to turn OD.
    ODs done. Yamaha top fitting shown too.
                                       11 MM bore for injector fuel inlet
     Chamfered for O ring entry. Yamaha fuel pressure regulator on left section of fuel rail. Not sure if I'm going to use it.
                                                  Milling top of fittings
                                              Test fit
                             Compound angle looks like it's going to fit OK.

Friday, March 7, 2014

Onan manifold


                                     Bungs tacked in
    Making fixture for governor spring attachment. The plan is to have the  tab in the same relative position so the governor will work just like it did with out adjustment.
                                          Fixture partway done
                              Copper tube for chill so the bolt doesn't get welded too
                  Welded and chill taken off
                   Fixture with slot so the manifold will come off
           Ready to weld on the governor spring tab and the manifold pressure tap
           Letting it cool on the fixture so maybe it won't go nuts distorting