The concept uses two large washers, one for the flange that connects to the cylinder head, and one for the flange connecting to the carb, connected with a section of curved pipe massaged to fit the proper openings of the head and carb. With washers and pipe in hand (and a cold beer for refreshment,) I got busy.
Washer on left fits cylinder head, washer on right fits to carb. Note that carb mounting holes are slightly off centered "up and down" in relation to the center hole:
Center pipe section is cut from a conduit sweep. I cut four little "pie sections" out of the cylinder head end so the pipe could be made slightly smaller in diameter to fit smaller intake port opening:
Small end of pipe was formed, welded, and ground smooth:
Freshly welded intake, ready for high heat resistant paint, followed by a good wrapping of exhaust header wrap for better thermal properties:
Carb mounted on intake. Intake bolts are threaded into the flange, which was tapped before painting:
Overall, this was a fun project to work on, and is sized to work with several typical small Mikuni carbs, which all have slightly different flange bolt patterns. I also made a second set of flanges, and have enough of the conduit sweep remaining to build a second complete manifold.
C'
1 comment:
I recently came across your blog and have been reading along. I thought I would leave my first comment. I don’t know what to say except that I have enjoyed reading. Nice blog. I will keep visiting this blog very often.
Garage Buildings
Post a Comment