The Boating Forum - flushing F225

I made an observation today when i was flushing my motor that when trimmed down there was no water coming out of the the small hole (what is the name). However when i trimmed it to the top some began to trickle out. When i was taking the boat out of the water i went to pull the pug out of the well and noticed that i had good pressure coming out so i dont think the impeller intake was clogged?

I made the same observation on a buddies ride, however his motors were trimmed down and the flushed water was coming out at a good pressure.


Should i have any concerns?

Are you flushing with muffs or with the adapter. Do a search and you'll find numerous threads on this topic. To summarize, you need good pressure and a set of muffs that flush from both side. You are NEVER supposed to run the motor while flushing with the hose adapter.

I have only flushed from the adapter and i do not have the motor running when im flushing.

Hmmm that is interesting, how is your water pressure? Other than that, I think we'll need a mechanic to chime in here.

Flushing from the adapter, with the motor trimmed up, you should get a good stream from the "pee hole"

If you do not get a good stream (and it gives one when running the boat) it is likely an issue with water pressure from the hose

You should not flush from the adapter with the motor in the down position. Verify in the owner's manual.

Elusive - 9/17/2007 11:56 AM

Flushing from the adapter, with the motor trimmed up, you should get a good stream from the "pee hole"

If you do not get a good stream (and it gives one when running the boat) it is likely an issue with water pressure from the hose



Agreed. Seeing it from the pee hole tells me I'm getting flushed in all the right places.

Bird Rock - 9/17/2007 2:32 PM

Elusive - 9/17/2007 11:56 AM

Flushing from the adapter, with the motor trimmed up, you should get a good stream from the "pee hole"

If you do not get a good stream (and it gives one when running the boat) it is likely an issue with water pressure from the hose



Agreed. Seeing it from the pee hole tells me I'm getting flushed in all the right places.

Someone correct me if I'm wrong but the fresh water is still not going past the thermostats. The head is still not being flushed.

LB

fishie1 - 9/17/2007 1:28 PM

You should not flush from the adapter with the motor in the down position. Verify in the owner's manual.



The manual says, when flushing with the boat in the water, to raise the motor so that it's out of the water. I can find nothing that says not to flush in the down position. I don't see why it would matter. I flush with mine down and always get an instant stream from the pee hole.

I don't otherwise think that we have a water pressure problem at home, but my experience is just as described by Tommy with both of my F225's.
My belief is that there are enough escape paths for the water through the lower unit that the water pressure can't overcome the increase in height necessary to fill the water passages and come out the pee hole. If I tilt the motors so that the water doesn't have to climb to get to the top of the block and cylinder heads I get a decent flow of water out of the pee hole.
I've never been real impressed with the water pressure I get while running, ~15 psi at higher speeds, but I don't seem to have any temp problems.

Bill

When all else fails... read the owners manuel and follow those instructions.

ok, at 1250 hours my three F225s had big holes in their exhaust plates even with flushing as per manuel. I was told that the underside of the plates won't see water when flushing anyway, and that the problem has more to do with when the engine is running. most of my hours are with running at high rpms. one engine ended up getting water into the crank case. when they opened it up they saw no problems with corrosion. i now have over 2000 hours but despite changing to brand new impellers and changing thermostats i overheat when at idle for longer than 5 minutes. this is all with flushing.

Maybe I'm not understanding you, antiguan, but why would you have holes in the exhaust plates if no corrosion problems were evident? Where did they come from? I've been wondering about the flushing situation with the F225-if it's better to use the muffs and run the motors rather than just run water through the fitting. I know the manual says that's all you need to do, but I'm not so sure I'm convinced.

I flush with the earmuffs and get a good pee stream. Make sure you get the good earmuffs that provide water from both sides.