Author	[Modern View]
Jgarner 02-12-2013 09:08:49 70.139.176.83 Report to Moderator	Doug, just sitting here thinking. The CID increase in 1952 on the DC and SC, what about the LA and VAC, did they increase too? I had known the SC changed in 52 or 53, didn't realize the DC did too and that got me to wondering about the other two models. Jim [Reply]   [No Email]
dboll 02-13-2013 05:40:57 209.23.168.126 Report to Moderator	Re: 350 and late DC rpm? in reply to Jgarner, 02-12-2013 09:08:49   yes Case upped the original 3 1/2 bore and 154ci to 3 5/8 and 165ci, aftermarket went to 3 11/16 which was 172 cubes, neighbor put 3 11/16 in an sc along with Ford 260 valves and a head port job, said it would really pull but wasn't cheap in gas anymore, Mopower did you ever get that JT with the 445 engine going? I always thought that would make a neat unstyled puller. [Reply]  [No Email]
Gene Dotson 02-12-2013 11:21:48 69.88.222.62 Report to Moderator	Re: 350 and late DC rpm? in reply to Jgarner, 02-12-2013 09:08:49   LA displacement remained the same at 403 Cu.In. with 4 5/8 inch bore. After market kits were available for 4 3/4 and 4 7/8 inch. Have 4 7/8 pistons in my LA for 448 Cu.In. Stock bore was unchanged from L to LA. LA did offer a high compression piston in later models, if you believe 5.7 to 1 compression was high. My LA with LP head is about 8.0 to 1 compression and you do not hand crank it. VAC did not increase bore either. Gene [Reply]  [No Email]
Jgarner 02-12-2013 11:46:16 70.139.176.83 Report to Moderator	Re: 350 and late DC rpm? in reply to Gene Dotson, 02-12-2013 11:21:48   Thanks Gene and you mentioned something that had never really crossed my mind and that is hand cranking and why later model tractors did not offer that option. Higher compression engines eliminated hand cranking. I remember hand cranking our 1 ton Model T truck and I know it was pretty low compression just had never put 2 and 2 together until just now as to why mid 50s on did not have hand crank capabilities and I knew that diesels could not be hand cranked due to high compression and just didn't think about gasoline engines as they got bigger with higher compression and more horsepower. I always try to learn something new every day and this is my new bit of knowledge! Jim [Reply]  [No Email]
C. Amick 02-13-2013 09:50:00 173.224.156.121 Report to Moderator	Re: 350 and late DC rpm? in reply to Jgarner, 02-12-2013 11:46:16   Did Case make any tractors with compression releases to assist hand cranking? [Reply]  [No Email]
LenND 02-13-2013 12:30:22 74.207.160.118 Report to Moderator	Re: 350 and late DC rpm? in reply to C. Amick, 02-13-2013 09:50:00   My 58 900B deisel has a compression release lever. Sure helps if you have a little weak battery. [Reply]  [No Email]
Gene Dotson 02-12-2013 13:09:52 69.88.222.62 Report to Moderator	Re: 350 and late DC rpm? in reply to Jgarner, 02-12-2013 11:46:16   I am sure that reliable sterters and batteries had a big part in the demise of hand cranks. Safety is another thing. I have a scar on my left forearm from trying to crank the LA. I finally broke down and had my stock generator rebuilt to 12 volt and a 12 volt battery. Burnt up 1 starter and 2 starter switches trying to start it on 6 volt. Even group 4 battery and 4-0 battery cables barely started it. Cranks over very good now. Gene [Reply]  [No Email]
Jgarner 02-13-2013 08:24:18 70.139.176.83 Report to Moderator	Re: 350 and late DC rpm? in reply to Gene Dotson, 02-12-2013 13:09:52   I vividly remember watching Dad cranking himself silly on the LA after it had set all winter. After it statred and had run a while it would restart with little cranking. We used ours for spring plowing and other assorted chores off and on that took big HP. Dad wouldn't spring for a battery to use just 3 or 4 times a year. He also used 8V batteries in all of our 6V systems for that little extra kick (tweaked VR to about 9V output). Just had to replace light bulbs more often. [Reply]  [No Email]