Another Farmall M question

[Animal]

how is the non vented fuel cap work on the gravity system of the M? This does not seem right to me.

 

[old]

Should be vented, Thats part of the free cap thing. So yes you need a vented cap on it
Hobby farm

 

[rrlund]

Dittos to that. A fellow here was burned severly several years ago from a release of vapor from one when he took the cap off hot.

 

[Anonymous-0]

I got 2 new vented caps from IHC/Case. Just emailed them.

 

[Andy Motteberg]

Get a free gas cap on this site.
IH Gas Cap

 

[Owen Aaland]

The M came with a vented cap. The original cap was about one inch high and the vents were located on the underside just inside the outer rim. Where the cap was crimped together there were several gaps that served as the vents. The triple baffle caps were sold as a replacment cap to correct a problem of fuel leaking out of the vents on the original style caps. The current cap with two vent holes was introduces to correct a problem of the vent hole sometimes getting plugged on the earlier caps.