View Full Version : Issue replaced water pump impeller 2009 LSV
.264 magnum
04-03-2011, 11:40 PM
This Saturday I replaced my water pump impeller. It seems to work but not especially well. When I go fairly hard and then slow to idle or no wake speed the gage will climb to an indicated 175/180. Upon giving it a little gas the gage very quickly drops back down below 150 indicated.
With the previous impeller the temp would climb to an indicated 150/155 and hover between the two.
Possibly - I didn't tighten the four cover bolts enough. They appear to be brass or similar and I didn't want to queer the threads.
Thoughts?
viking
04-04-2011, 12:28 PM
FWIW - 180 is standard operating temp on my 07 outback
.264 magnum
04-04-2011, 12:35 PM
FWIW - 180 is standard operating temp on my 07 outback
Interesting thanks.
Razzman
04-04-2011, 12:41 PM
My '07 LSV runs 180 as well.
DOCDRS
04-04-2011, 03:42 PM
I bet you have the 340 cat ext
rdlangston13
04-04-2011, 07:33 PM
mine stays between 160 and 180. doesn't ever concern me
JesseC
04-04-2011, 07:54 PM
Agreed on the 175/180 being normal temps. If you are concerned, check the inlet side of your trans cooler. It is about a 1' pipe with #2 sized pencil holes. Last season I noticed my boat would rise in temps and then fall when underway and I found that there was a 1" square pice of cardboard lodged in there. I check it every so often now. If you have a raw water strainer I doubt you will find anything in there. This is the reason I added mine.
viking
04-05-2011, 03:35 PM
If you have a raw water strainer I doubt you will find anything in there.
The only thing you may find is some chewed up Impeller :shock:
How did the old one look?
.264 magnum
04-06-2011, 01:13 AM
The only thing you may find is some chewed up Impeller :shock:
How did the old one look?
The old impeller looked close to perfect.
.264 magnum
04-06-2011, 01:14 AM
Thanks everyone.
I'll check the trans cooler/lines.
schuylski
04-11-2011, 07:35 PM
running temp depends-
If you've got fresh water cooling then i think the operating temp is 180 like a car, but if you've got raw water cooling it should not be 180! that's too hot... it causes deposits in the engine from impurities in the raw water eventually.
i think if you have a cat it has to have fresh water cooling.
DOCDRS
04-11-2011, 07:56 PM
What engine do you have????????????????????
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