Help with impeller change -sherwood pump

Rssll45

Member
Feb 16, 2009
87
New Orleans
Boat Info
1998 450DA
Engines
Cat 3126
We all know that changing the raw water impeller on the outboard side is a real pain. Part of the problem is the short throw of the wrench to turn the 1 1/8" bolt that pulls the impeller. I found on Home Depot's web site a 1 1/8" wrench with a wrachet on the closed end for only $22 (most I've looked at have been in the $70 range). This has to save a bunch of time. You may want to look into it.
 
We all know that changing the raw water impeller on the outboard side is a real pain. Part of the problem is the short throw of the wrench to turn the 1 1/8" bolt that pulls the impeller. I found on Home Depot's web site a 1 1/8" wrench with a wrachet on the closed end for only $22 (most I've looked at have been in the $70 range). This has to save a bunch of time. You may want to look into it.

Do you have any part number or URL to reference?
 
Do you have any part number or URL to reference?

http://www.homedepot.com/p/GearWrench-1-1-8-in-Combination-Ratcheting-Wrench-9036/202737922

66df7a82-b7d2-4594-91c3-ee90899d34d8_1000.jpg
 
What length 3/4"-16 bolt with 1 1/8" head do you use? I just bought a 4" bolt that has 2" of threads.

Thanks.
 
Hi, my impellers use a large bolt with "no shoulder" they are threaded on the entire bolt. You can buy them online. I also use a 1.25" 1/2" drive socket, they take about 15 minutes to remove and install the new impeller. I also use a silicone penetrating spray very liberally in the vanes of the old impeller and spline, also spray on the new impeller going in. "If" you cannot remove the old impeller because it won't budge, try "bumping" the engine couple of times.

The smx impeller use a different type of bolt/key slot, much better! Hope this helps. Also, the SMX impeller is better and will last longer that Sherwood.

you should pull the impellers at least once a year to inspect for cracks, broken vanes, uneven "set" in the vanes from sitting too long. Great preventative maintenance and should never be neglected unless of course you don't mind getting stuck somewhere.

Bow Tie
 
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