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I'm replacing my Sherwood impeller.It has keyway and a

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removable 1/2 moon piece...
I'm replacing my Sherwood impeller.It has keyway and a removable 1/2 moon piece of metal that fits flatside down ?? on the shaft. What is the best wy to correctly align the impeller onto the shaft & keyway
thanks
xxxx xxxxxx
Submitted: 2 years ago.Category: Boat
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5/26/2015
Marine Mechanic: Jason, Marine Mechanic replied 2 years ago
Jason
Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 16,418
Experience: Degree in Marine Technology. Gas and diesel marine mechanic.
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Hi Dick, my name is ***** ***** I will be helping you today. Do you have a Sherwood number on the pump?
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Customer reply replied 2 years ago
09959k
Marine Mechanic: Jason, Marine Mechanic replied 2 years ago
09959k is the part number on the impeller kit, and that kit fits many different pumps. Do you have any kind of numbers on the actual pump itself? Usually they are stamped someplace.
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Customer reply replied 2 years ago
no not at boat but can go there tmorrow
Marine Mechanic: Jason, Marine Mechanic replied 2 years ago
That's no problem, there are no time limits here. Just reply back once you have a pump number and we can go from there.
Have a good rest of your night.
-Jason
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Customer reply replied 2 years ago
ok
Marine Mechanic: Jason, Marine Mechanic replied 2 years ago
Have a great night!
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Customer reply replied 2 years ago
good morning. I will be going to the boat later this morning and will provide the info requested.
Marine Mechanic: Jason, Marine Mechanic replied 2 years ago
Sounds good Dick. I'll be on and off throughout the day myself. Just let me know what you get for numbers and we will go from there.
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Marine Mechanic: Jason, Marine Mechanic replied 2 years ago
Hi Dick, I see you started a duplicate question. What have you found out?
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Customer reply replied 2 years ago
I didn't start a duplicate question.......
Marine Mechanic: Jason, Marine Mechanic replied 2 years ago
If you click this link, are you able to see anything?
http://www.justanswer.com/boat/947hz-i-m-replacing-sherwood-impeller-1978-westebeke-40-diesel.html
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Customer reply replied 2 years ago
I have just checked the cover plate on the impeller and looked at the water pump itself. I find no part numbers on either. The cover plate has no info on either the inside or outside of the plate except for Sherwood stamped on the outside of the plate.
Dick
Marine Mechanic: Tan, MerCruiser Certified Technician replied 2 years ago
Tan
Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 11,108
Experience: 40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.
Verified
Hello. My name is***** you take a picture of the pump? Does this look like your pump? http://www.marinedieseldirect.com/catalogs/catalog_group.php?owner=mdd&page_ident=13765-227&model=40 / 4-107 / 4-108 / WPD 10 / WPDS&manufacturer=Westerbeke&title=WESTERBEKE 40 - SEA WATER PUMP 16423&quant_position=&catalog=13765&printparts=13765&printservice=20502&printoperators=&comment1=
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Customer reply replied 2 years ago
the schematic may be representative of the pump but I'm not sure. I will go to the boat Friday morning look for my parts catalog take pictures of the pump and forward them directly to you.under another matter this indicates that there are 8 minutes left of expert work time. where has the rest of the time gone to ?can you document and send back to me?
Marine Mechanic: Tan, MerCruiser Certified Technician replied 2 years ago
I cannot as I started on this late. The pump I posted is for your engine. But on something of this age there is no way to know what you have. Thats why pics help.
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Customer reply replied 2 years ago
The keyway is at the bottom of the shaft slightly to the right.
Marine Mechanic: Tan, MerCruiser Certified Technician replied 2 years ago
What seems to be the problem? If you can't get the key to stay just crank the engine to get the key ontop. Then put some grease on the key to hold it in the key way lube the impeller and slide it in.
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Customer reply replied 2 years ago
The keyway has been rotated so that it is now on top. After lubricating the shaft etc. generously with winch grease I attempted to insert the impeller.
The vanes on the impeller do not compress enough to allow it to slide onto the shaft. The one time I was able to do that, it pushed the insert out the back. That has always been my problem . alignment and insertion. I do want to thank you for your words of encouragement.
Marine Mechanic: Tan, MerCruiser Certified Technician replied 2 years ago
Ok here is something else you can try remove the cam plate then install impeller. Now put the cam plate back in. This can be difficult but I have had to do this before. What has happened is the key way in the shaft has become worn. The key should be a very tight fit which makes installing the impeller a little easier you can be more forceful and the key won't slide out. Since the key is loose this is where I have done the cam plate remove and gotten the impeller in.
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Customer reply replied 2 years ago
good morning. I attempted to removerm the cam plate after soaking it overnight with blaster but I couldn't break the screw loose. I was able to get the impeller onto the shaft but as before, but it moved the insert out of its place.
Marine Mechanic: Tan, MerCruiser Certified Technician replied 2 years ago
Can you get a new key? A new key might fit in the keyway on the shaft tighter. Have you tried a little heat on the screw in the cam plate?
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Customer reply replied 2 years ago
good morning. I have not been able to budge the screw holding the cam plate. I have ordered and am awaiting delivery of the woodruff key. hopefully the new one will not keep slipping out as I insert the impeller.
Marine Mechanic: Tan, MerCruiser Certified Technician replied 2 years ago
Ok keep me posted.
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Tan
Tan
Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 11,108
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Experience: 40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

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