View Single Post
jpnovak jpnovak is offline
I would rather be driving
jpnovak's Avatar
Join Date: Apr 2000
Location: Austin, TX
Posts: 7,664
I bored some MFI stacks recently. I ended up with a straight bore. I could not fixture the stacks well enough to cut with taper ream. The ream is the easy part. I just did not have enough room to jig the parts. I could not cut the taper by hand. Just some downward pressure on the ream due to tool weight was enough to prevent me from taking a cut.

The drill on an extension worked well. I cut in 2mm steps out to 38mm. be aware. That plastic (phenolic) is really hard and will bind easily. It will heat and expand at the cutting edge and then contract behind it binding the bit.

The throttle bodies are basically a plunge cut followed by a blend with a flap wheel.
Jamie - I can explain it to you. But I can not understand it for you.
71 911T SWT - Sun and Fun Mobile
72 911T project car. "Minne" - A tangy version of tangerine - EFI conversion parts
Old 12-12-2018, 07:17 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #400 (permalink)