Hi Chris,
  I was looking in the OLIVER TRACTOR DATA BOOK, written by Brian Rukes. The info is on page 154 down at the bottom of the page.
The other info comes from a JENSALES copy of the model A4T-1600 PLAINSMAN owners manual.
 I finally finished the engine job on the 2655, but had to buy manuals for several Minnieapolis-Moline tractor to get complete enough info on the engine. The whole 2655 repair manual is only 66 pages long! For Petes' sake! My little Case 310 crawler has a manual and its 4 inches thick!
 On another topic, we finally got everything moved to Maine! 13 tractors (and the 2655) and the entire shop and a whole house full of &quot;stuff&quot; jeepers, we sure do accumulate things! Many things went to the Salvation Army and Good Will. Now it's hurry up and get ready for winter, although it was T-shirt weather today and much apreciated!
                        Cal