Baller_ Wish Posted May 17, 2014 Baller_ Share Posted May 17, 2014 Say, friend of mine wants to change the impeller as general maintenance. I only know how to do GT40. His is an Ex.. 330 2007 SN. Can someone give me some quick step by step instructions that I can send to him please. Thanks. Link to comment Share on other sites More sharing options...
Baller_ Wish Posted May 17, 2014 Author Baller_ Share Posted May 17, 2014 Oh, and accepting tips a tricks that make it easier. THANKS!! Funny, his manual says change every 50hrs but NO instructions on how. Just has an arrow that points to the pump. Link to comment Share on other sites More sharing options...
nzcabbage Posted May 17, 2014 Share Posted May 17, 2014 Easy.......use a spanner to hold back the tensioner pulley (rotate it to the right), remove the belt. Water pump has 3 triangle holes in it that allow you to reach the 3 bolts with a socket and short extension. Undo them (they dont come all the way out as an O Ring is on the inside of each), as you pull the pulley and front housing off, rotate the pulley clockwise so the impeller comes out with it. Change the O Rings on the bolts you just loosened, put the new impeller in the pump body ensuring the fins are swept back in the right direction for the direction of rotation (I put a small layer of vasaline inside the pump body to keep the rubber lubed till it gets water on first startup), replace the O Ring (I put a couple of small spots of vasaline in the grove to hold it whilst you position it), realign the bolt holes (from memory they are slightly offset to fit only oneway) and evenly tighten the 3 bolts. Check the belt for wear and damage and if ok replace. Whole job usually takes me 15-20 minutes. I always check for water flow on first startup through the weed trap bowl and for any leaks around the housing I just removed. Go ski and enjoy.........our water down here is now geting darn cold! :-( Link to comment Share on other sites More sharing options...
Baller oldjeep Posted May 17, 2014 Baller Share Posted May 17, 2014 Or just remove the whole thing from the engine. Much easier to replace the impeller on that kind of pump on the workbench. Link to comment Share on other sites More sharing options...
Baller_ Wish Posted May 17, 2014 Author Baller_ Share Posted May 17, 2014 @nzcabbage Thanks. Any tips for getting the belt back on. Link to comment Share on other sites More sharing options...
Baller thager Posted May 17, 2014 Baller Share Posted May 17, 2014 $$$$$$$$$$$$ : ) Link to comment Share on other sites More sharing options...
Baller oldjeep Posted May 18, 2014 Baller Share Posted May 18, 2014 Same way you remove it. Just lean on the tensioner pulley with a wrench to slack the belt.. Link to comment Share on other sites More sharing options...
Baller AggieSkier Posted May 18, 2014 Baller Share Posted May 18, 2014 Tip for removing a difficult impeller. Instead of ripping impeller vanes off with needle nose pliers, use 2 paint can openers. Slip them in on either side of impeller and let the hooks grab the back of the impeller hub. Pull the impeller out. Tip for removing frozen nuts or bolts, use 50-50 mix of acetone and transmission fluid. Way better than WD-40 or PB Blaster. Link to comment Share on other sites More sharing options...
Baller LeonL Posted May 19, 2014 Baller Share Posted May 19, 2014 Bolts should be 10mm. Use a short extension. What @JayG80 said about paint can openers. Easy peazy. Link to comment Share on other sites More sharing options...
Baller rockdog Posted May 19, 2014 Baller Share Posted May 19, 2014 Those excal ones are way easier than the stupid GT 40 ones. Link to comment Share on other sites More sharing options...
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