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jdemaris
02-02-2005 13:30:22
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Re: Question for JDEMaris in reply to Lavoy, 02-02-2005 09:13:33
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I'm in a rural area in central New York. 20 years ago we had many good automotive machine shops here, but they're gone. One automotive shop left in the area, and I've had several bad experiences. For example - I dropped off four rods to get checked, and if needed, resized at the big ends. Standard procedure for a diesel rebuild. They ruined them. Come to find out they were NEVER calibrating their mikes. Didn't even have any mike-standards in the shop to do it. Then they gave me a hard time, because I told them they had to replace the rods. A while later, I brought down some pistons and asked to get the top grooves cut and shimmed. They told me that shims are no longer available, it's an obsolete process. I later bought the repair shims from Hastings and had an old retired machinist do it for me in his backyard shop. We do have a few big machine shops somewhere near, but all they do is contract and production work. Seems with the 1010 or 2010, since there is only one o-ring sealing surface, it should not be too difficult. But, it would take some setup time which can cost. Now, I thought about the idea more, of putting the bigger bore sleeve deck in the 1010 gas engine. Even if the machining was done, and all the parts fit, I wonder if there would be a vibration problem due to the bigger bore and increased piston weights. My 1010 book shows a different crank for the gas and for the diesel - yet the rod and main journals are the same size and the stroke is the same. I suspect the difference is larger counterweights to compensate for the bigger bore. Four cylinder engines are prone to vibration as it is - that's why many if not most have some sort of balancing besides the crank counterweights (like 450s, 2020s, 3020s, etc.). 3s, 5s, and 6 cylinder engines don't have the problem. I wonder if the 1010 diesel crank is the same part number as the 2010 gas - since they both have the same bore and stroke. But, there could be other differences relating to gas or diesel, or application that I'm not aware of. My parts book is a 1967 reprint - I'm sure numbers have changed many times. 1010 diesel crank is # AT21049 (subs for AT11002T and AT15257T). In regard to the block numbers I gave before - here they are with the subs: 1010 diesel block - AT15752T(number on block T17513T) (subs for AT13827T, AT14488R, AT15034T, AT15459T). 1010 gas block - AT15458T (number on block T16277T) subs for AT13824T, AT14486T, AT15033T)
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