Hi all,
This may seam like a silly question but, when looking at the 0-300 Continental engine, which cylinder is what number? I tried looking on the web and I get different answers with opposite numbering patterns depending on where I look and who is making the engine.
Thanks
Jim Collins
0-300 Cylinder numbers
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
- DaveF
- Posts: 1562
- Joined: Sat Nov 03, 2007 1:44 am
Re: 0-300 Cylinder numbers
On continental engines, cylinder 1 is right rear, 2 is left rear, 3 right center, 4 left center, 5 right front, 6 is left front.
- GAHorn
- Posts: 21291
- Joined: Fri Apr 12, 2002 8:45 pm
Re: 0-300 Cylinder numbers
Another way to consider it is the No 1 is directly in front of the copilot and No 2 is directly in front of the pilot. The numbering sequence (on Continental engines) then proceeds forward and skips across the engine so that No. 3 is in the middle right, and No 4 is middle left, No 5 is front/right and No 6 is front/left. Odd numbers on the right and even numbers on the left, and counting from rear to the front.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.

- Jim Collins
- Posts: 69
- Joined: Tue Oct 17, 2017 1:34 pm
Re: 0-300 Cylinder numbers
Thanks Dave & George. That matches most of what I had seen for the Continental's
Cessna® is a registered trademark of Textron Aviation, Inc. The International Cessna® 170 Association is an independent owners/operators association dedicated to C170 aircraft and early O-300-powered C172s. We are not affiliated with Cessna® or Textron Aviation, Inc. in any way.