Super Jet Pressure testing flywheel case area for leaks with pics

Could not keep moisture out even with all areas sealed up with sealant: starter, gasket, grommet n wires... Continued to have a mystery leak...so decided to tap the front cover, hook up a hose and blow air in after spraying all areas with soapy water....Well to my surprise a hair line crack in the case right behind the stator grommet where you see in the pic the square gray area of JB weld...This area pools water and it flows into the front cover area...This area is also aprox 1/2 inch below the girdle stud threaded area in the case...The last pic shows an oem plug with gasket to seal the port...This port can also be used to lube the bendix...Finally ! this testing method found the ongoing problem...Thoughts, ideas, comments ?
Anyone heard of a leak in this area before ?



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Last edited:

Penken

whoomp there it is!
Location
Umeå, Sweden
why would you care. water has good cooling and lubricating qualitys and it leaves your steel parts with a nice bronze colour to look bling.

smart test to do. do not pressurize it to much tho, you dont want to damage the crank seal.
 
why would you care. water has good cooling and lubricating qualitys and it leaves your steel parts with a nice bronze colour to look bling.

smart test to do. do not pressurize it to much tho, you dont want to damage the crank seal.

I hear ya...did not have to put much air pressure in and saw soap bubbles right away...

I hear you can also add 2oz's of 2 stroke oil in the front case for the flywheel to sling oil on the bendix...
 
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