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Old 06-06-2018, 09:52 AM
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LT1 Raw Water Pump Replacement

My Raw Water pump was dripping last year and after launching this year, still dripping. So I think it's time to order up a new pump.

LT1 - 68-5020 or S685020-1

After looking around, I found 2 sources:

CorrectCraft - $272 (plus tax and shipping, possibly)
http://mycorrectcraftparts.com/en/co...lt1-ltr-detail

Marine Exhaust - $289 (don't know tax or shipping)
http://www.marineexhaustmanifolds.co...-and-parts.htm

Any experience or preference?
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Last edited by Ski-me; 06-06-2018 at 01:25 PM.
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Old 06-06-2018, 12:36 PM
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You could rebuild it for about 1/3 the cost, 2 hours, and 3 beers.

https://www.skidim.com/SEAL-RW-PUMP-...nfo/68%2D5004/

https://www.skidim.com/BEARING-SHERW...info/SHE08490/

I know those bearings are cheaper elsewhere. You will need 2 of them.
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Old 06-06-2018, 01:01 PM
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Didn't know I could rebuild. Just 2 bearings and 1 seal? That's all?
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Old 06-06-2018, 01:10 PM
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I rebuilt a Sherwood pump a few years ago. The bearings had to be pressed out. I had to take it to a shop. It was still cheaper, but a little bit of hassle. Not sure if this pump is the same way.

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Old 06-06-2018, 01:10 PM
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Quote:
Originally Posted by Ski-me View Post
Didn't know I could rebuild. Just 2 bearings and 1 seal? That's all?
Pretty much. I rebuilt mine using my vice and the help of some wonderful TT'ers. I'll see if I can find the thread.....
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Old 06-06-2018, 01:15 PM
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http://www.mastercraft.com/teamtalk/...r+pump+rebuild

Here you go. Post #12 has a PDF that I used that shows how to do it.
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Old 06-06-2018, 01:23 PM
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http://www.mastercraft.com/teamtalk/...r+pump+rebuild

Here is another thread on the same topic.
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Old 06-06-2018, 01:26 PM
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Tablerocker has some good ideas for this project. I remember getting a bearing puller from AutoZone to pull one of the bearings off the shaft. That was my only hiccup. Otherwise I used my vice to press the other bearing out and press the new ones back in.
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Old 06-06-2018, 01:31 PM
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Quote:
Originally Posted by Ski-me View Post
Didn't know I could rebuild. Just 2 bearings and 1 seal? That's all?
THere is an o-ring in there somewhere as well. My dealer had a rebuild kit in stock which had all the parts, but it was basically the seal, an impeller, and the o-ring if memory serves me correctly. The bearings were sent to me by TableRocker as he had extras from when he rebuilt his. It cost me $50 total. Those bearings are a very common bearing you can get very cheap. I can't find the number for them at the moment. Maybe someone will come along with that info. MC dealer should be able to get the number from the bearing for you.
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Old 06-06-2018, 01:43 PM
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https://www.asap-supplies.com/us/joh...ring-05-08-128

Here is the bearing.

Now that I have had time to go down memory lane, I got the pump off the engine, the housing off the shaft and one of the bearings stuck on the shaft. Took it to Autozone and used their bearing puller to remove it. Cleaned it up, rebuilt the pump with the kit, put the pump back on the engine, and tested. There is a brass washer that goes between the impeller and the seal when you put the impeller back in. Easy peezy...or however you say that.
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