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9.9 cooling intake
Posted: Mon Jul 25, 2005 10:07 am
by doubledutch
My port engine has lost it's cooling stream. When you hold your hand in front of the pee hole you feel an air stream so it seems the pump is working. I discovered the problem late yesterday and checked for blockages in the plumbing at engine level but I did not get a chance to get under the boat and check the water intake for blockage.
Can someone tell me what I will find at the lower end? Is there a removeable intake screen?
Posted: Mon Jul 25, 2005 12:30 pm
by Allezcat
The Yamaha 9.9 has two plastic intake screens located on each side of the lower unit just below the anti-cavitation plate. Suggest you pull the hose off the plastic discharge fitting first and run the engine to check for water flow from the hose.
Chet
Allezcat 36010
water runs again
Posted: Mon Jul 25, 2005 9:44 pm
by doubledutch
Well after a lot of poking around I have cooling water circulating again although it is still a bit anemic. I did not find any obvious problem but will keep an eye on the motor and will probably install a new impeller after haul out this fall.
Posted: Wed Aug 03, 2005 3:35 pm
by next exit
Be sure to check your thermostat too.
Don