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Need info on Onan CCK

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Re: Need info on Onan CCK

Postby bobodu » Wed Feb 26, 2014 7:22 am

Feel free Joe...it's still almost a free country.
"Give me a fast ship, for I intend to go into harm's way."
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Re: Need info on Onan CCK

Postby desertjoe » Wed Feb 26, 2014 8:38 am

Good Morning Folks,,,,well, I'm beginning to wonder,,,,Your attorney general this morning was quoted as sayin " If you don't like a certain law just ignore it,,!?" what?????? I couldn't help myself,,,,,,,, :P
Ya'll have a wonderful day,,!
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Re: Need info on Onan CCK

Postby desertjoe » Wed Mar 05, 2014 12:00 am

Hey Guys,,,a bit of an update on the Miller welder/Onan engine. Bruce got it on the money as far as separating the engine from welder. I got em apart and opened both cylinders, and the dang rings were stuck to the pistons. Took some of my ultra secret ATF/Acetone mix and doused em good and let em set. At about that time I had to make an emergency trip to ER to take my wife that was having "chest Pains",,,,She had a stroke last August and we feared the worst. They kept her overnight for observation and determined she was suffering from extreme stress.,,,Got her home next day and she's and resting well.
I was messing with the pistons and she asked me what I was trying to do,,,,Duh????? She said,,,,,"why don't you boil em in hot water to remove the rust that was caused by the water[b][/b]"? WHAT,,,??? Well, you know the rest of the story, don't you?? I boiled em just to humor her,,and after a couple of hours,,,I tapped on the backs of the compression rings and both the top rings popped out pretty as you please. The oil rings did the same but only got one of the middle compression rings loose this way. Who'ed a thunk??? Have we discovered something new here? ;) ;)

Any way,,,I got a question for the group... This place has rings in STD and .010 OS. My cylinders mik'ed out to 3.257
and 3.256 on a factory 3.250 bore. Can I file fit the .010 rings to recommended end gap of .010 (min) and .020 (max),,or are they a tad too big for this bore? OR,,,go with the 3.250 STD rings?
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Re: Need info on Onan CCK

Postby StarTech » Wed Mar 05, 2014 6:34 am

desertjoe wrote:Any way,,,I got a question for the group... This place has rings in STD and .010 OS. My cylinders mik'ed out to 3.257
and 3.256 on a factory 3.250 bore. Can I file fit the .010 rings to recommended end gap of .010 (min) and .020 (max),,or are they a tad too big for this bore? OR,,,go with the 3.250 STD rings?


Just my opinion.

Personally I go ahead and hone them to 3.260 then install both .010 OS pistons and rings if the cylinder is true. That way you won't have piston slap. Your only three thousandths from that on one cylinder now and when you de-glaze you probably be very close 0.10 over if not larger. But before you order parts check the cylinder in several areas for out roundness as you may need to go to .020 OS to correct this.

I have found that if the job is worth doing it is best not to use short cuts when come to rebuilding.
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Re: Need info on Onan CCK

Postby desertjoe » Sun Mar 23, 2014 5:35 am

OK, Guys, a bit of an update on the Miller welder/ Onan overhaul. Got the engine all cleaned up, cylinders honed and new rings installed. Engine runs great with 25# oil pressure at idle and 35# at high idle,,,good enough for this guy! I'm goin to "modify" the exhaust where it comes out top of heads and put a double 90 and run both down and around engine and mount a muffler under the trailer. This engine had the dual mufflers lookin straight up at all the rain/snow is what ruined the engine to start with and I ain't gonna let that happen again.
Got the unit painted up nice and looks like a new one. I'm waitin on some Miller decals as we speak,,,,
Question for the group, does anybody have an old one of these Miller AEA 200 LE with a legible face plate they want to sell? The faceplate on mine was so faded, most of the writing is not readable. Contacted Miller CS but they quit makin this particular face plate last year,,,ain't that a Bi****???? I'm goin to see if any of the local artists can maybe freehand the writing back on face plate. :usa:,
I've forgot, if I ever knew, how to post a pic,,,can somebody chime in?
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Re: Need info on Onan CCK

Postby bobodu » Sun Mar 23, 2014 7:25 am

Upload the pic to a place like photobucket. Use their software to resize it below 600 pixels. Then copy and paste the image location..
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