OY91 gas engine

Curt from Wi. · Nov 1, 2009

Does any one know the horse power of a continental 4 cyl. gas engine mdl. no.
OY91?

Bob · Nov 1, 2009

At 91 CID, NOT MUCH!

Actually when the Y91 was tested in the Massey Pacer tractor, the rating was 19.19 belt HP.
Massey pacer w/Y91

noncompos · Nov 1, 2009

Curt: Is yours an OHV engine??
You"ll note the Neb test says L-head/flathead Y-91, as do the catalogs I checked.
(FO-226 is OHV version of F226, etc.).
If an OHV, do you know if it was the original engine, or a replacement??
Many thxx for any help!! Bud

OY91 gas engine

Curt from Wi.

New User

Bob

Well-known Member

noncompos

Well-known Member

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