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#1
01-26-2015, 08:25 PM
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K-301aqs
I have a K301AQS which won't run. It has a sticker on the top shroud which indicates it has an Automatic Compression Release. Does this engine actually use a compression release?
I checked compression and only got about 30 Lbs. Any idea what should I be getting with the compression release? The engine has a regular starter rather than a S/G.  Thanks 
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#3
01-26-2015, 10:43 PM
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I've done a compression test by unhooking the acr springs and got between 75 and 95 psi.
__________________
Brian April 1979 1200 Quietline 44A deck 1988 1211 customized into a 1288 with a K301AQS 38C deck and a 1864 54” deck . Snow blades 42" and 54" . Brinly disk, brinly plow a cultivator and a $5 brinly yard rake! 
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#4
01-26-2015, 10:47 PM
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How do I get to the springs? What is the best way to unhook them?
Thanks
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#5
01-26-2015, 11:02 PM
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First off not to sound like a azz , but do you have any mechanical experience? If not I would advise you not to mess with it. If you do on the lower left side of engine is the cam cover remove the four bolts and take the cover off. You will see the cam. Their are two small springs that are hooked over weights on the cam. Unhook them from the weights, only unhook them where the arrow is pointing. Then you can do a somewhat accurate compression test. Here is a pic the white arrow is pointing to the cam spring I was talking about. After your done don't forget to put the spring back on.
__________________
Brian April 1979 1200 Quietline 44A deck 1988 1211 customized into a 1288 with a K301AQS 38C deck and a 1864 54” deck . Snow blades 42" and 54" . Brinly disk, brinly plow a cultivator and a $5 brinly yard rake!
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#6
01-27-2015, 04:15 PM
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Regarding my mechanical experience, I have turned a few wrenches and burned a few rods, but I am certainly not a master mechanic.
http://www.onlycubcadets.net/forum/s...ad.php?t=16835 I would only consider someone a smart a** if they had no constructive advice to offer. I have never encountered such an individual on this site. I refer to my shop as an Urgent Care Unit where I take Cubs that are about to expire and try to bring them back to life. This site is where I get second opinions and consults. And I really appreciate your input along with the photo. I will try a compression test with the compression release disconnected and see what I get. Again, thanks so much for your helpful input. 
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#7
01-27-2015, 04:41 PM
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My guess is that you are probably qualified to do a compression test on a Kohler.
 Cool 4X4, well done.
__________________
2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL
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#8
01-27-2015, 06:31 PM
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Thanks. Here are a couple pictures as I was painting it this summer.
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#9
01-27-2015, 07:05 PM
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Yeah I'm d say you know what your doing! Saw your other post with your 4x4 cub, very nice!
__________________
Brian April 1979 1200 Quietline 44A deck 1988 1211 customized into a 1288 with a K301AQS 38C deck and a 1864 54” deck . Snow blades 42" and 54" . Brinly disk, brinly plow a cultivator and a $5 brinly yard rake!
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#10
01-30-2015, 09:28 PM
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My neighbor came today to help me with the 1250 today. He's a mechanical engineer and pretty sharp when it come to small engines and a lot of other stuff. After a lot of testing and diagnostics, it was determined the points were all screwed up causing very intermittent spark. A new set of points and the engine fired and run.
 Rough, but it at least run. Will deal with carburation later. The ACR really sent me chasing a compression problem that did not exist. I have been known to fix things that are not broken. As always, I appreciate everyone's input and suggestions on this issue. What a resource this forum is.
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