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briggs Vanguard 23hp oil leak issues

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limechallenger
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2020/06/14 21:53:55 (permalink)
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briggs Vanguard 23hp oil leak issues

So I've got a 23hp Vanguard 23 hp motor on a Great Dane zero turn mower. motor model #386777, type 0026-g1, code 08050711.  my mower has a oil cooler and remote oil filter. I recently replaced the main crank oil seal because I thought that was my oil leak ,it helped but I still have a rather large leak. It seems to be leaking through the oil filter gasket while the mower is running! I put a rag around the filter as I cut my lawn and the rag was saturated when I finished (about 2 hours running) Does anyone have any suggestions as too why it may be leaking here? Obviously my filter is on tight and correctly so that's not it! I checked and cleaned the crankcase vent, it seemed fine? I'm looking for answers! The motor seems to run great. I did replace all the hoses to and from the oil cooler and remote oil filter this spring because I thought that was my oil leak. If I was runnig the oil the wrong direction through the filter, would it leak out the gasket! I'm lost , please help!
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    welska
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    Re: briggs Vanguard 23hp oil leak issues 2020/08/18 18:32:19 (permalink)
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    if you have a modern phone you can take a picture of the Q code and get a manual specific to your engine.
     
    there are a couple good youtube on replacing the crankcase gasket on the Vanguard engine....these videos caution against the shaft seal being twisted when re-seated....one guy has to pull it out and reset it
     
    there is an oil pump "o" ring but that seems less likely
     
    i have a generator that has developed a leak of "unknown origin" and I am pretty sure its the crankcase gasket....this gasket is just below the filter so it might be very hard to exactly id the source
     
    vanguard(no space)power(dot) (com)  copy this to your browser with three (w) in front
     
     
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    AVB
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    Re: briggs Vanguard 23hp oil leak issues 2020/08/18 19:33:29 (permalink)
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    UV tracer dye would be the easiest way to find the the leak source. As it can be the filter adapter gasket, pressure sensor, hose adapter, the hose, or the oil filter itself that is the culprit. Also even be the mounting screws that is the leak source. An unrelated service bulletin was just release on the Horizontal versions of this engine about the screws for the filter adapter leaking and the solution was to add Blue Loctite to the screw threads.
    post edited by AVB - 2020/08/18 19:36:40
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    welska
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    Re: briggs Vanguard 23hp oil leak issues 2020/08/19 18:03:09 (permalink)
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    After looking closely at my leak (Vertical Engine) I am voting for the oil filter casting seal to the crankcase....haven't pulled it yet but sure looks like a "usual suspect" and gonna used the "Locite" solution from AVB's Service Bulletin....also going to use a high temp plastic sheet to block the oil (not the cooling air flow) from fouling the generator "conveniently" mounted under the engine (that designer had just returned from the planned obsolescence Zoom meeting at B&S).
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