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-V-
07-11-2011, 05:38 PM
Does anyone know what the point is for the hard plastic inserts that go in the connection for the raw water pickup? The hoses attach to the outside but these go inside. They were both kind of warped so I took them out, they looked like they restricted the water flow. Does anyone know what they are for or if I should buy new ones?

-V-
07-12-2011, 09:58 AM
.....bump.....

-V-
07-12-2011, 12:43 PM
any help would be appreciated

thatsmrmastercraft
07-12-2011, 12:46 PM
Pictures, plus year and model of boat go a long way towards getting good responses.

Pictures with bikinis almost guarantee it.:D

-V-
07-12-2011, 09:58 PM
Ok, these are what screws into the raw water pump intake and output. as of right now i have nothing in place and it runs at a constant 155-160

tph
07-12-2011, 10:15 PM
I think those provide a flair at the end of the fitting so that the hose will not slip off once clamped.

-V-
07-12-2011, 10:47 PM
do you know why they would warp? they look as if they would restrict a bit, don't you think?

tph
07-13-2011, 01:15 AM
do you know why they would warp? they look as if they would restrict a bit, don't you think?

They probably got hot when an impeller failed and melted the plastic. They do reduce the inside diameter but not by enough to cause any flow issues.

-V-
07-13-2011, 06:45 AM
How can I tell if I need to change the impeller?

Jerseydave
07-13-2011, 07:34 PM
How can I tell if I need to change the impeller?

Best to remove it and see if any of the fins are missing/cracked. I replace mine every 2 years no matter what it looks like.

-V-
03-25-2012, 02:06 PM
just to put it out there, I found this while working another issue. TPH was right, according to the website this does this;

"Each Johnson raw water pump is equipped with two of these black Plastic Hose bushings. These fittings create a lip to avoid blowing the hose off the pump"



https://www.bakesonline.com/detail.aspx?ID=2126