cschnepf Posted September 9, 2015 Share Posted September 9, 2015 I am currently in the process of tearing down my 1940 Commander engine since it wasn't in running order when I purchased the car. All of the exhaust valves were fairly rusted (anyone know why this is?) on the heads and one had seized. The cam timing gear was then had the teeth chewed off.Anyway since the car hadn't run in 40ish years from what I was told we decided to just rebuild the whole thing. I believe it has 74k original miles but there is no way of really knowing other then what the condition of the engine looks like. Other then being super dirty so far there doesn't appear to be significant wear.That brings me to my real question.I am looking for complete specs for bearing measurements, torque, etc. I have the shop manual (and parts manuals) but the only thing I see in these is torque specs. Nothing on bearing specs. I am trying to determine if I need to get the block machined, purchase the correct bearings, rings, and depending on what happens with the block new pistons if I have to get over-sized ones.Thanks in advance for your help! Link to comment Share on other sites More sharing options...
studeboy Posted September 10, 2015 Share Posted September 10, 2015 My Chilton's manual has engine overhaul specs. Ring clearance max .017 for all rings ex cept oil .015. Piston skirt clearance top .002 bottom .0015 limit .006. Rod bearings oil clearance .0005-.002 wear limit .003 side play .005-.009.Crank main oil clearance .0005-.0025 shaft end play .003-.006 valve spring tension 135@1.75 low limit 120guide clearance .001-.003seat angle 45 Link to comment Share on other sites More sharing options...
nvonada Posted September 10, 2015 Share Posted September 10, 2015 That does not look like rust on the valves. Looks like lead deposits to me. And those fiber timing gears seem to fail suddenly and with little warning. The good news is you probably now know why the car was parked. Link to comment Share on other sites More sharing options...
cschnepf Posted September 10, 2015 Author Share Posted September 10, 2015 (edited) Thank you studeboy and nvonada! Edited September 10, 2015 by cschnepf (see edit history) Link to comment Share on other sites More sharing options...
rbk Posted September 18, 2015 Share Posted September 18, 2015 (edited) Where are you located?I have many parts for your car but can not ship.I am old and slow.http://www.studebakerstore.com/Studebakerstore.com/Welcome.html Robert Kapteyn Edited September 18, 2015 by rbk (see edit history) Link to comment Share on other sites More sharing options...
cschnepf Posted September 20, 2015 Author Share Posted September 20, 2015 I am located in Gilbert, Arizona Link to comment Share on other sites More sharing options...
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