sdowney717
Guru
- Joined
- Jan 26, 2016
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- 2,264
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- United States
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- Old Glory
- Vessel Make
- 1970 Egg Harbor 37 extended salon model
For those responding about removing the pump for impeller replacement, the Cummins gear-driven pump installating doesn't accomodate that. Access to the pump attachment bolts are blocked by port side, front motor mount (and other plumbing), and that pump removal requires jacking that point of the engine slightly to remove that foward motor mount. There are some Cummins engines that have a belt-driven raw water pump which can be easily removed.
http://bertram31.com/newbb/viewtopic.php?t=4284
Apparently you can make this an easier job by doing a shim modification to the mount.
Note: To remove the whole pump on the Cummins 6bt with factory mounts just shim the mount between the block 1/2 in. and add longer bolts. Its easy if you do it before initial install but many of you may have the 3/8-1/2in needed in the slot for the shim. I just cut the pallet shipping mounts and used it for a shim since the bolt pattern was already there.