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post #1 of 26 Old 06-25-2008 Thread Starter
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Replacing Impeller

Before I make a mess, what tool/technique is used to remove the impeller from an Atomic 4 water pump. I took the face plate off and expected to see some kind of retainer holding the impeller on the drive shaft, but there is nothing there. So how do I get a nondamaging hold on the old impeller and pull it off?
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post #2 of 26 Old 06-25-2008
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Needle nose pliers are a good choice. Pull straight out. Don't grab the vanes, but grip it across the hub. If you try grabbing the vanes, they may tear off.

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Thanks, I'll go try that.
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post #4 of 26 Old 06-25-2008
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As Dog described, but also take any old screwdriver and hold the shaft in at the center of the impeller, as you're pulling the impeller out. That way you won't pull the shaft out. My impeller on my former A4, as well as on my current diesel, had a circlip (circle clip) on the shaft holding the impeller in place. I never saw much function to the clip as the cover holds the impeller in place.

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post #5 of 26 Old 06-26-2008
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Dont forget to lubricate the impeller when reinstalling. Everyone has their preference. I use dish soap. You just need something to lubricate it until it gets enough water to cool itself. Maybe 10 seconds or so. If you don't you can burn it up or damage it.

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post #6 of 26 Old 06-26-2008
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CD,

By the way, I rebuilt a spare water pump just a couple of nights ago. When putting in the new impellor, I tried a trick that I think you recommended a couple of months ago. I put a plastic zip tie around the impellor before sliding it in place. Worked like a charm.

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Quote:
Originally Posted by erps View Post
CD,

By the way, I rebuilt a spare water pump just a couple of nights ago. When putting in the new impellor, I tried a trick that I think you recommended a couple of months ago. I put a plastic zip tie around the impellor before sliding it in place. Worked like a charm.
Sweet! You did take off the zip tie, didn't you?? HEHEH! Just kidding!!

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post #8 of 26 Old 06-26-2008
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DOH!









I got a "message too short, must use at least ten characters" error message. Can anyone recommend ten characters?

Ray
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DOH!









I got a "message too short, must use at least ten characters" error message. Can anyone recommend ten characters?
Sway Stinks.

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You can use a piece of string or pretty much anything else... the zip ties work well, but are wasted IMHO, since you can't re-used them generally.
Quote:
Originally Posted by erps View Post
CD,

By the way, I rebuilt a spare water pump just a couple of nights ago. When putting in the new impellor, I tried a trick that I think you recommended a couple of months ago. I put a plastic zip tie around the impellor before sliding it in place. Worked like a charm.

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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
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