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Post by jjoshua20213 on Dec 7, 2013 12:12:31 GMT -5
So I put in the a9 cam and replaced the rings. I'm guessing the piston and or cylinder were scored from when it was overheated, because i'ts burning extreme amounts of oil and I get some white exhaust smoke.
But anyway. I'm just gunna replace the cylinder and piston, new rings, head ect,
For the time being, i'm broke and can't afford a quart of oil every 2 days. I have a big jug of dirty oil though.
I know it will end up finishing off piston/cylinder seal. And drastically loose performance.
What other damage would occur?
Is my thinking even logical?
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Post by urbanmadness on Dec 7, 2013 18:13:13 GMT -5
it could be hard on the crank bearings as well
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Post by urbanmadness on Dec 7, 2013 18:13:29 GMT -5
it could be hard on the crank bearings as well
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Post by oldchopperguy on Dec 7, 2013 19:38:04 GMT -5
I agree with urbanmadness...
You can get some REALLY cheap oil if you look around, which still meets basic standards. That might be better for your lower-end than the dirty oil (unless the "dirty" oil wasn't all that used). If it's simply from regular oil-changes, and gets burned up and replaced quickly, it should be OK. Just depends on how "used" it was when removed. Many of us change oil before it's REALLY necessary, and the old oil would still be good for many more miles.
Believe me, I understand "too broke to buy oil"... REALLY DO! Best wishes on getting your engine all fixed, and running for many miles ahead!
Leo (livin' on nuttin') in Texas
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Post by jjoshua20213 on Dec 7, 2013 20:06:13 GMT -5
Yea, the crank bearings are what I was worried about, plus cleaning the inside of the case after I rebuild. I noticed a lot oil around the head area. I think I just might have a leak. Bike starts easy and runs runs fine though. And maintains speeds up hills so its not a leak that would effect compression.
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Post by JerryScript on Dec 7, 2013 21:54:20 GMT -5
If you do use dirty oil, run it through two coffee filters with a magnet sandwiched between them. That should get all metal shavings out (even ones you can't see), and pretty much all other particle contaminants. The issue left is that of the oil itself being broken down, and loosing it's lubricating ability, so you'll have to make a judgement call on that.
I use two coffee filters with a magnet between them to check for metal when doing oil changes.
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Sophomore Rider
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Post by dude on Dec 8, 2013 0:19:15 GMT -5
Did you hone or sand the cylinder with the new rings? I've been down and out before. I pulled the motor apart honed it used the same gaskets. It had 7000 miles lost compression and it regained compression. If you use old oil try to filter it. Good luck.
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Post by urbanmadness on Dec 8, 2013 2:06:03 GMT -5
something to think about.... sounds like your leak is the valve cover gasket. If you can't afford a new valve cover gasket, and you have some RTV laying around.... Pull the valve cover and goop her up a bit, let it set up and put it back on. It will probably get rid of the leak.
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Post by nulldevice on Dec 8, 2013 21:12:22 GMT -5
Don't even think about using used oil. You know that nice A9 cam you installed? Buy another one because it will likely be the first thing to get damaged using old oil. The crank bearings are roller bearings. The rings/piston/ cam/rocker points are sliding contact points. They really, really need good clean oil.
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