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NE149 08-06-2014 10:21 PM

Got a 149 with problems.
 
Howdy all, I bought a 149 for fairly cheap from a neighbor for a project. Slowly I am fixing minute things. it runs, however I was told it burns oil. Also it blows some white smoke at start and stutters at high rpms. Gearheads at work mentioned rings or head gasket. i was wondering if a rebuild kit would fix my problem? Or I could there be a bigger or smaller Iissue?

Thanks
Mike

olds45512 08-06-2014 10:31 PM

does the smoke smell like oil or old gas?

NE149 08-06-2014 10:52 PM

Quote:

Originally Posted by olds45512 (Post 279357)
does the smoke smell like oil or old gas?

Hmm... smells oily to me, the guy ran some with it around the yard. I could drain the tank there isn't much in there. Doesn't oily smoke usually blow blueish?

olds45512 08-06-2014 10:58 PM

Quote:

Originally Posted by NE149 (Post 279366)
Hmm... smells oily to me, the guy ran some with it around the yard. I could drain the tank there isn't much in there. Doesn't oily smoke usually blow blueish?

generally oil burns blue, thats why i asked about the smell as old nasty gas burns a whiteish color. it breaking up on the top end of the throttle could also be from bad gas or the carb need rebuilt/adjusted

NE149 08-07-2014 01:36 AM

Quote:

Originally Posted by olds45512 (Post 279369)
generally oil burns blue, thats why i asked about the smell as old nasty gas burns a whiteish color. it breaking up on the top end of the throttle could also be from bad gas or the carb need rebuilt/adjusted

To me it seems like it could be more white than anything, I will drain the tank tomorrow and run some fresh fuel in it and see how it does then.

NE149 08-07-2014 11:25 PM

Fresh fuel did not help, still had smoke. I also drained the oil, it was nasty, and has some streaks of something in it, maybe it was gas?:bigthink:

NE149 08-09-2014 08:50 PM

Pulled the piston today, no rings were cracked or anything like that... what else can I look for? I'm going to grab a micrometer from work and mic the cylinder...

Anyone have the link to the manual that gives acceptable tolerances?

:bigthink:

R Bedell 08-09-2014 09:06 PM

It is in the Technical Library Section..... K Series Service Manual

NE149 08-09-2014 09:18 PM

Quote:

Originally Posted by R Bedell (Post 279869)
It is in the Technical Library Section..... K Series Service Manual

Thank you! Lots of little areas to explore here!

J-Mech 08-10-2014 12:54 AM

I'm guessing this is the first motor you've ever taken apart.

Well, since you pulled it down, just start piling up your pennies to rebuild it. No need to go mic'n the bore. Just go find a shop and have them bore it. No sense in going that far and not doing it right. The shop will tell you how much it needs bored. No need to measure it.

No, before you ask, honing it and slapping a set of rings in it isn't a rebuild, and it's a waste of time. Do it right, the K series are cheap motors to rebuild. Done right they last, oh, around 25-40 years depending on they're use. (About 1500-2000hrs or more if you take care of them) :beerchug:


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