air bubbles comming out water intake

[aff]

I have a mercury 50 - 1972 and while in a test tank I noticed bubbles comming out of what I thought was the water intake holes. Is this ok?? Also I would like to use those water cups (ears) to test motor, but I have two sets of holes on my lower unit.And the higher ones have ridges on top and bottom so the ears do not cover. Any help?

 

[Yepblaze]

Re: air bubbles comming out water intake

If you see a good stream out of the pee hole and it doesn't get hot during operation I would suspect all is normal.<br /><br />You may be best off running in a barrel rather than the muffs if you can't get them to fit up properly.<br /><br />When running in barrel make sure the water level is kept as far above the flat anticavitation plate as possible. At least as high as the waterline left from use.