Water flow
 

I am having water flow issues on one motor.
We have changed out the impellor- was perfect., back flushed everything.

Problem is that I am not getting good flow to strainer. One has the water going thru like a toilet bowl and Starboard is just about half that flow.

Any ideas? Changing water circulation pump this week.

Check your hoses for cracks. I've seen hoses with small cracks cause this problem. Sucking air.

i would also look for an obstruction in the drive itself, if something got wedged into the passages of the scx

I have been looking for leaks but none noticeable.

I was thinking this also- It started Shootout weekend.

Now how? I guess pull drive? I looked at intake holes in nose and they appear clear. We flushed water back out also.

I had this same issue, I put a brand new mercury pump housing on, it had a casting flaw. When I installed it, in between the 2 bolts that are close, the new housing had a hairline small crack, I thought it was a drip from hose, but it wasnt, I replaced with a borrowed older housing. Full pumping, no problems. Just that little air and it made erratic, half pumping situation. Good luck!

FYI this was 4 weeks ago

Did you check the connection/ fitting at the transom assy for blockage ?

Its Dark back there lol. With the Stellings boxes Hmmm. Need to see about that. Might be able to pull hose lose in box?

What size hose is this? I might just get several feet and replace.

As for the impeller housing its the Stainless steel from Hardin( I think).
Bad part is tanks are Full and I do not want that sitting all winter.

Better to fix it now, burn the gas, and be able to sleep at night....lol. I hope it's simple for you, good luck

1 1/4 ID I think, hard tellin what you ingested in that lake :party-smiley-004: zebra muscle's :funnypost:

https://www.mercruiserparts.com/Show...Gimbal+Housing

You should be able to get to item 20 inside of the extension box, that's where I'd be looking

Thanks- Shaping up to be chitty weekend so now I have a project.

Also check hose # 15. Back flushing will not push out an obstruction. Make sure you have a free and clear path from drive to strainer.

Good Luck...that is one of those PITA jobs.

Might have it narrowed down to #15 or something stuck in drive(doubtful). HEAVY SCX comes off soon-- Thanks to__ Carters' Cigarette Shop___
Were the "DONT DO FOUNTAINS" is our Motto lol

Hope it's nothing major. Could you try a temperature gun on the hoses checking one motor vers the other. There pretty cheap. I keep one in my truck to keep an eye on my trailer bearings when I stop for fuel on long trips.

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Think Danny figured it out. the #15 hose was twisted.
Could have something to do with my Other issue last year- Just glad I didn't have to go Diving for 15K worth of aluminum. But that's a Whole other story.
As for Temp- It never got over 190 or so that I noticed so should be OK hopefully there.
I did the old "Put your Hand on tail pipes" and this motor was warmer than other lol

Danny is the man!!!

Well that was it. The hose in the helmet. Twisted close.

Now Carter and I have to burn up 150+ gallons this Sat. Upper 40s to lower 50s!! Cool weather = HP!!!

Anybody wanna ride