Bad Day on the Lake
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Bad Day on the Lake

  1. #1
    Etz
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    Default Bad Day on the Lake

    I need some help here. On the lake Saturday. After about 10 minutes I notice an exorbitant amount of smoke coming from the Oil Breather, then I check the manual oil press. Next to nothing. Shut it down. Next day I check a few things and same problem. It will raise a couple of pounds when you bump the throttle. Is this a main bearing problem? The motor isnt making any noise?

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    Wet
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    Mains, rods, rings, hole in piston.

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    SLOW MEMBER slowboy's Avatar
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    Quote Originally Posted by Wet View Post
    rings, hole in piston.

    Im not so sure that is the case. Last time I put a hole in one of my pistons, I still had 30 psi of oil pressure at idle. Im not sure why you think a hole in a piston would cause low oil pressure.

    A good way to tell if it is a bearing problem is to put a much thicker oil in the crankcase. Dump the oil and put in some 20-50 or thicker oil and see if that helps.
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    Wet
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    Quote Originally Posted by slowboy View Post
    Im not so sure that is the case. Last time I put a hole in one of my pistons, I still had 30 psi of oil pressure at idle. Im not sure why you think a hole in a piston would cause low oil pressure.

    A good way to tell if it is a bearing problem is to put a much thicker oil in the crankcase. Dump the oil and put in some 20-50 or thicker oil and see if that helps.
    I don't think there is just one problem. Oil pressure and smoke from the breather are two different things. Breather smoke, sounds like blow-by, oil pressure, or lack of sounds like bearings or pump.

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    Default Simple.....

    It is very simple to cut open the oil filter..... If there are any little flakes, they came from the bearings.... The smoke out the breathers may be a, or more, bad bearings over heating the oil as the bottom end gets hot enough to weld it's self together....... Cut open the filter before you do any more damage.....Ray

    AND YES, the mains will do that, and be quiet about it for a while......OH, one more thing, check the pump thrust bearing. The pump shaft MAY be bottomed against the PTO stressing the thrust bearing in the block, which will also take out the main bearing adjacent to the thrust bearing ...... Smoke out the breathers is never good. Is it pulsing, like a single cylinder, or just flowing out?.......Ray
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    Most of us use a short dipstick on custom pans. Pull the dipstick amd take a long heavy duty zip tie and put it down the hole to the bottom of the pan. When you pull it out you will be able to tell the condition of your oil. Any shiney flects on the zip tie and its a pretty sure bet its bearings. Also check the condition of the shaft on the dizzy. Either way lf no oil presure pull it find it and fix it. Its not worth waisting a motor. Just my 2 cents
    Smltty

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    SLOW MEMBER slowboy's Avatar
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    Quote Originally Posted by Wet View Post
    I don't think there is just one problem. Oil pressure and smoke from the breather are two different things. Breather smoke, sounds like blow-by, oil pressure, or lack of sounds like bearings or pump.
    If there was a hole in a piston, you would not see smoke coming out of the breather, more than likely there would be no breather as the pressure in the crankcase from the hole would have probably blown the breather off and into the water.

    Do to what Moneypit said, he hit the nail on the head, the filter will tell all.
    Last edited by slowboy; 08-11-2010 at 07:12 AM.
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    Wet
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    Really??? We don't know shit about this motor. So, just for fun, let's say he has twist lock baffles, how do you explain the smoke out of the breather?

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    SLOW MEMBER slowboy's Avatar
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    Quote Originally Posted by Wet View Post
    Really??? We don't know shit about this motor. So, just for fun, let's say he has twist lock baffles, how do you explain the smoke out of the breather?

    Well if you dont know shit about this engine, why did you open your trap? I can tell you that smoke coming out of a breather is not a common complaint when a hole is put in a slug.

    Smoke coming out of a breather can be caused by plenty of things, but apparently we should just ask you.
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    Wet
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    Quote Originally Posted by slowboy View Post
    Well if you dont know shit about this engine, why did you open your trap? I can tell you that smoke coming out of a breather is not a common complaint when a hole is put in a slug.

    Smoke coming out of a breather can be caused by plenty of things, but apparently we should just ask you.

    That's a great explanation. I just offered up some possible causes, you come up with a breather would have popped off. Brilliant! However, a hole in a piston can't create pressure. No intake draw, no compression, no boom. So, unless you're feeding pressure, like a blower, the crankcase ventilation shouldn't be enough to blow off a breather.

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    SLOW MEMBER slowboy's Avatar
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    Quote Originally Posted by Wet View Post
    That's a great explanation. I just offered up some possible causes, you come up with a breather would have popped off. Brilliant! However, a hole in a piston can't create pressure. No intake draw, no compression, no boom. So, unless you're feeding pressure, like a blower, the crankcase ventilation shouldn't be enough to blow off a breather.

    How do you know he doesnt have a supercharger..... lets use your reasoning and assume he does. WOW.
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    SLOW MEMBER slowboy's Avatar
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    Quote Originally Posted by Etz View Post
    I need some help here. On the lake Saturday. After about 10 minutes I notice an exorbitant amount of smoke coming from the Oil Breather, then I check the manual oil press. Next to nothing. Shut it down. Next day I check a few things and same problem. It will raise a couple of pounds when you bump the throttle. Is this a main bearing problem? The motor isnt making any noise?
    Poor guy comes on here with 2 posts and Wet paints nothing but doom and gloom.

    Pay attention to the last sentance Wet... The engine is not making any noise. Hole in piston, probably gonna make a little noise. A quote from Ron White comes to mind.
    WORK HARDER, MILLIONS ON WELFARE DEPEND ON YOU.

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    I am sure as hell no expert on engines...80% of the time I can't set the damned distributor right...BUT

    If you have no oil pressure...and you umm...have oil...it seems no matter what, the engine is coming out.

    The first think you are going to do is pull the pan for a visual right?

  16. #14
    Wet
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    Quote Originally Posted by slowboy View Post
    Poor guy comes on here with 2 posts and Wet paints nothing but doom and gloom.

    Pay attention to the last sentance Wet... The engine is not making any noise. Hole in piston, probably gonna make a little noise. A quote from Ron White comes to mind.
    You can't fix slowboy. I know. Pay attention to the original post:

    Quote Originally Posted by Etz View Post
    After about 10 minutes I notice an exorbitant amount of smoke coming from the Oil Breather
    WTF do you think that means? A big enough hole won't make noise. It's a void, like the inside of your head. Please tell us...oh never mind, you can't.

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