Early engines had a looser fitting sleeve than the later engines. Some sleeves could be installed all the way in with just hand pressure. The sleeves are held in place by the head gasket instead of friction in the block bore. Most of the time you are better off getting the .002" oversize sleeves and then honing the block a little if they are too tight. If the sleeve flange height varied too much between adjacent cylinders it could allow a low low sleeve to move in the block. There are shims available to adjust sleeve flange height for these early blocks.
If ether was improperly used to start the engine it could also lead to cracking of the sleeve flange. Ether should not be sprayed into the intake unless the engine is already cranking over and never used if the glow plugs are being used. This type of breakage is not unusual with engines that have seen a lot of ether to start them. You will also find it in the later engines with the press fit sleeve and in the D361 and D407 engines. Sometimes when a head is removed you will find evidence where a piece of sleeve flange has broken off and left it's mark on the piston and head.
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Today's Featured Article - The Cletrac General GG and the BF Avery A - A Bit of History - by Mike Ballash. This article is a summary of what I have gathered up from various sources on the Gletrac General GG and the B. F. Avery model A tractors. I am quite sure that most of it is accurate. The General GG was made by the Cleveland Tractor Company (Cletrac) of Cleveland, Ohio. Originally the company was called the Cleveland Motor Plow Company which began in 1912, then the Cleveland Tractor Company (1917) and finally Cletrac.
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