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#1
11-30-2013, 11:11 AM
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Once I finish one, another takes its place.
So yesterday I was just finishing up rebuilding my K301 fro m 125. So with the extra freetime I thought I'd tear into my 1450 to see why it smokes so much. I had bought a head gasket in advance just in case that was the case. I opened it up to see this and my heart sank.
 Is this fixable? It seems like such a big oval that it may not be recoverable. I also have some questions about my newly rebuilt K301. It has spark and everything but it is really hard to turn over on the compression stroke. How do I overcome this? Do I just need to wear it in? I have a normal Lawn and garden battery to jump it. I have tried a car battery that probably needed to be charged and that wasn't much better. What should I do to get it started? Is there some kind of compression release?
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     Grandpa's 1961 "O" w/ mowing deck, 169, 149, 147, 1000, 125 w/creeper and 3pt, 1250 w/ 44A deck, 1650, Frankenstien 1250, Great Grandpas 1968 Cadet 125 w/original QA-36, CCC 1711, Model 2 tiller, QA-42 and a QA-42A Snowthrower, Cozy cab May not be as much as others, but we're still building our fleet! There are more to come! Connor 
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#2
11-30-2013, 12:18 PM
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I wonder what happened to the rings? I guess you will have to check the bore for damage and if it can be bored out for oversize piston.
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Original, 109, a pair of 122s, 124 with power lift, 124 with creeper, 126, 147, 1050, 1200, two 1250s, 1450 Dual Stick , another 1450, two 1650s, Gannon Earthcavator, Haban sickle bar and a bunch of other things you either pull, push or hang underneath.
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#3
11-30-2013, 12:42 PM
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When I shine light on the cylinder I see a cross hatched as if someone honed the cylinder before. So I wonder of someone already rebuilt it in the past. Does anyone know why my k301 has trouble turning over on the compression stroke?
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Grandpa's 1961 "O" w/ mowing deck, 169, 149, 147, 1000, 125 w/creeper and 3pt, 1250 w/ 44A deck, 1650, Frankenstien 1250, Great Grandpas 1968 Cadet 125 w/original QA-36, CCC 1711, Model 2 tiller, QA-42 and a QA-42A Snowthrower, Cozy cab May not be as much as others, but we're still building our fleet! There are more to come! Connor
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#4
11-30-2013, 01:18 PM
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Concerning hard turning on compression......hopefully it could just be timing check that out first...... but it could be this.....it is called automatic compression release (ACR)....on your cam gear there are weights and a very fine hairlike spring. For starting the weights allow the exhaust valve to remain partially open to reduce compression so the starter doesn't have to fight it. As the engine starts rpm's build and centrifical force pivots the weights away from opening the exhaust valve. The before mentioned hairlike spring pulls the weights into position when the engine is not running so that the weights can do their job for starting. You said this is a newly rebuilt engine so I would look for the spring to be broken, weak, or out of position on the weights. You can view the cam gear, the weights, and the spring by taking the cam gear cover of of the side of the engine, just below the carb. It is very tight quarter but if you can see that the spring is out of place you may be able to get it back where it belongs. But check the timing first!!!!
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#5
11-30-2013, 02:40 PM
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Weak starter?
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Original, 109, a pair of 122s, 124 with power lift, 124 with creeper, 126, 147, 1050, 1200, two 1250s, 1450 Dual Stick , another 1450, two 1650s, Gannon Earthcavator, Haban sickle bar and a bunch of other things you either pull, push or hang underneath.
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#6
11-30-2013, 02:48 PM
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Quote:
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(2) Original, 100, 102, 124, 73, 800, #1 and #2 cart, brinly plows, disk, IH184, IH244, 1948 F Cub
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