Oil Sump Corrosion

How to keep the Cessna 170 flying and airworthy.

Moderators: GAHorn, Karl Towle, Bruce Fenstermacher

User avatar
cessna170bdriver
Posts: 4059
Joined: Mon Apr 22, 2002 5:13 pm

Re: Oil Sump Corrosion

Post by cessna170bdriver »

I’ve seen older sumps with a steel baffle attached with fasteners similar to those that attach the data plate. Later ones like mine (that I know ro have come from an O-300D) has the baffle cast in. I’ve always assumed that the purpose is to smoothly divide the flow from the carburetor equally to the left and left intake manifolds. Quite a few years ago I posted pictures of a steel one still installed, and a mangled steel one that a friend found lodged in an intake valve seat 8O. I thought I had a photo of my sump with the cast-in-place flow divider but I didn’t find it.
Miles

“I envy no man that knows more than myself, but pity them that know less.”
— Thomas Browne
Post Reply