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-   -   Thinking about buying a QA42 (https://www.onlycubcadets.net/forum/showthread.php?t=8069)

ad356 01-06-2011 01:08 AM

Thinking about buying a QA42
 
There is a local QA42 available. I haven't looked at it yet, but I might. My plan is to get my 147 back together and running. I want to see how it runs after the rebuild. When I rebuilt it, I torqued the rod bolts to 280 in/lbs, have around .010 crankshaft end play, and around .060 camshaft end play. I also adjusted the valve clearance as per the service manual. everything was done according to the book so she should run great, I hope. I'm hoping for a 1st start Friday or Saturday. I have been working on it an hour or 2 a day. Today, I installed the breather, timing gear cover, flywheel, shroud, coil, and points. I'm going to use the points that I got with the engine for now. I'm thinking about buying one of the solid state ignition units, but I want to make sure it runs before I spend any more money.

If the engine runs well, which it should I think I might buy that snowthrower. I was also thinking about maybe selling my jd 37a so I could have a little more money.... not sure about that yet though, it would still be a good backup. What I might do is get a blower for the Cub and mount my 42 blade on my 112 then i would have 1 tractor with a blade and one with a blower. I don't know if it makes any sense to do that.

By the way the QA42 is selling for $200 for a complete snowthrower, I think I could talk the guy down to $150.

Matt G. 01-06-2011 10:07 AM

Cam end play is 0.005/0.010". You have WAY too much cam end play. That's going to knock really bad and sound like the engine is coming apart.

_DX3_ 01-06-2011 10:16 AM

Way too much end play.

Per Kohler Manual:
http://i210.photobucket.com/albums/b...LR/endplay.jpg

ad356 01-06-2011 11:06 AM

oops, i meant to say .006. i didnt have enough zeros when i wrote my post. im sorry. anyways, i was looking right at the book when i put it back together. i used the appropraite shim in the side of the cam as well. i do look at the book when i put an engine back together and i use a feeler gauge set as well. i dont even know if it is possible to have .06 camshaft end play, lol. the cam would have to be extremely worn out.

_DX3_ 01-06-2011 01:27 PM

LOL no problem, we just didn't want you to accidentally mess up a fresh motor. I look at the book too, but sometimes I think I get dyslexic as the day goes on and I misread numbers, ROF.


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