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Minneapolis Moline Tractors Discussion Forum
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cam removal

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Mark H.

10-15-2003 13:50:05




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How we all doing? Here's one of my new to tractor questions. On a 1951 Za can you take the cam out of the engine without removing the front of the engine? I think I have a flaten lobe but don't want to go though the engine til next year.Thanks Mark H.




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c.c

10-20-2003 17:35:22




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 Re: cam removal in reply to Mark H., 10-15-2003 13:50:05  
is that you ,I havent heard from you lately get back to me about the parade ,when this comming summer? I plan on more tractor pulls this summer what about you guys ,let me know see ya's soon C.C



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George Dolittle

10-15-2003 17:55:55




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 Re: cam removal in reply to Mark H., 10-15-2003 13:50:05  
seperate the two halfs pull out flywheel and cam will slide out , make sure back half is about 4 feet from front half, I had to cut all my wires, still trying to get wireing right oh well ill get it , p.s. do brakes well you have it seperated its much easier, make sure you pull injector pump out and dont mix up lines , i still cant figure my lines out well gotta go ma just came from the out house, didnt finish plumbing yet talk to ya later thanks for your advice George

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BMG

10-15-2003 16:50:37




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 Re: cam removal in reply to Mark H., 10-15-2003 13:50:05  
Mark,
Yes you can remove the camshaft through the side cover on a ZA.

Brian



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Phil

10-15-2003 21:26:08




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 Re: Re: cam removal in reply to BMG, 10-15-2003 16:50:37  
Brian is correct. You remove the side cover. Then you can take off the 3 caps that hold the camshaft in. However, Before you pull the camshaft caps off.. First turn the engine over until the camshaft and crankshaft index marks line up. Then remove the rocker arms. Then pull the caps off and roll the camshaft out of the block. IMPORTANT... MARK the caps as 1, 2 and 3 or front, middle and rear. They need to go back in the same place. You will note that there are NO bearings around/between the camshaft and caps. This is normal. Do not turn the distributor gear or you will have to retime the ignition.

On the reinstall of the camshaft, lube the caps and cam lobes, etc. Mesh the gears and roll the camshaft back into place so that the index marks line back up. Be sure you get the caps indexed in the right direction. Ie.. there is a "dished or tray" at the top of the cap that funnels the oil into the cap to lube the camshaft journals. Tighten the cap bolts to a snug fit. There is no "torque" for them, just snug the bolts down tight. I still torque mine. so that all the bolts are at an evenly pull.

I have a feeling when you get the camshaft out you will find that the lobe you think is bad will have a groove worn in the middle of it. That is what mine looked like when I had one go bad. You might be able to have someone weld it up and regrind it back down so that has a nice profile again.

Phil

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