View Full Version : Impellar Removal and installation

04-20-2009, 04:14 PM
Can someone please give me a step by step or guide me to a thread or another resource that gives a good step by step process to pull of the old impellar and replace with the new? Any tips/hints to make this easier would be greatly appreciated.

04-20-2009, 04:22 PM
Sorry, just correcting my mistake...... Impeller, I also tried to take it out at the end of last season and it was stuck and wouldn't come out... is this typical? How hard should it be to actually take out?

04-20-2009, 05:17 PM
What boat?

04-20-2009, 05:39 PM
Sorry, 2000 Moomba outback... It has the flexible rubber impeller

04-20-2009, 06:09 PM
There's not much to it. Getting the old one out is the hardest part. If you are replacing it and not worried about wrecking it, you can use something (needlenose) to grab the blades and yank. You may have to pry as well, but be careful of the housing and keep something in between to protect it. Once out, simply compress the blades on the new one, line up the key, and slide it in. Replace the O ring, put the cover back on and make sure you're getting water.

Brian Raymond
04-20-2009, 11:51 PM
I have found this to be the best way for me to remove impellers from direct drives and V drives. First-tools neded; (2) paint can openers, 5/16" wrench or socket set-up, Fantastik spray cleaner. First, disengage spark and fuel (unplug coil wire from dist. and pos. fuel pump wire on carb. models, unplug fuel pump and ign. control module wires on fuel inj. models). Remove faceplate from raw water pump (4-5/16" hex screws), spray Fantastik cleaner into the housing and "bump the motor over a few times. Insert the paint can openers @ the 1 and 7 o'clock position and pry it out. Once out, inspect the blades to be sure that they are all there. If some are missing, be sure to remove hoses before and after the pump to retrieve the missing blades to ensure no future overheating issues. The impeller is on a splined shaft, so when reinstalling, insert and turn in a clockwise motion until seated. when seated, push the rest of the way in with the palm of your hand until flush with the face, install new gasket (fat side of gasket to odd cyl. side of motor), insert screws and hand tighten. To finish the job, use your 5/16" tool and tighten every other screw until tight. Hope this helps. It is much easier than it sounds. DD models should take 5 min., V deives- maybe 10. Brian Raymond

04-21-2009, 11:31 AM
Very nice summary.