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-   -   Rookie Mistake - Impeller Change (http://www.wakeworld.com/forum/showthread.php?t=775853)

h2ohangtime 02-20-2010 2:57 PM

I was working too quickly and forgot to note the orientation of the raw water pump on my GT40 SAN. Should there be two pump housing bolts closest to the port side or should there only be one? I just want to make sure I get this right before I go out and overheat the boat.

mhunter 02-21-2010 5:17 AM

Does it look like this? <BR> <BR><img src="http://www.wakeworld.com/MB/Discus/messages/3183/775939.jpg" alt="Upload">

h2ohangtime 02-21-2010 9:21 AM

Yeah, it does. Does your pulley spin clockwise or counter-clockwise?

mhunter 02-21-2010 2:05 PM

Its a PCM 351w I'm pretty sure its clockwise rotation <BR>at the pulley. The pic shows correct installation. <BR>I put the arrow on the housing to show the up position. <BR> <BR>(Message edited by mhunter on February 21, 2010)

h2ohangtime 02-21-2010 2:44 PM

OK, good to know. Thanks Michael...you would think that it would be opposite because it seems that the impeller would push water down (out) instead of up (in). I guess that's why you keep track of these things...:-) <BR> <BR>Thanks again!

mhunter 02-21-2010 2:56 PM

The water is going in the same direction as the arrow is pointing.

fman 02-21-2010 4:05 PM

Tony, <BR> <BR>If you look at your old impeller you will also see the veins slighly bent showing you the direction the impeller was turning, which on my Indmar is clockwise.

h2ohangtime 02-21-2010 4:30 PM

Thanks Travis...I think I got it from Michael's pic...the problem I was having was that the pump will mount to the C bracket either way, so I couldn't tell which one was the inlet and which one was the outlet given a clockwise rotation. I think what I'm going to do is use the 5-Gallon-Bucket method to see if it's sucking water when I start it and then I'll know it's good. <BR> <BR>Thanks again guys!

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