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07-11-2021, 11:08 PM
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#1
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Guru
City: Port Townsend, WA
Vessel Name: Traveler
Vessel Model: Cheoy Lee 46 LRC
Join Date: Nov 2011
Posts: 1,576
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Lehman 120 Fresh Water Pump Replace
Everything was going pretty straightforward until I tried to remove the pulley on the fresh water pump. Removed the 4 bolts, but the pulley will not come off (which makes the 4 bolts holding the pump on the block harder to access...). Am I missing something? It seems like it should pop off at this point. Tried prying to no avail. Of course, I didn't put a lot of weight into it, as I'm not sure if there's something else holding it on.
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07-11-2021, 11:21 PM
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#2
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
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Been a while since I pulled one. Try rubber hammer taps beside each bolt hole.
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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07-11-2021, 11:57 PM
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#3
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Guru
City: Boston
Vessel Name: Adelante
Vessel Model: IG 30
Join Date: Nov 2016
Posts: 1,611
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Just rusted on. Hit with PB Blaster or Kroil. Propane torch so it's a little too hot to touch. PB Blaster again. Whack it with rubber mallet. Repeat.
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07-12-2021, 07:05 AM
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#4
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Senior Member
City: Colonial Beach, VA
Vessel Name: Tatoosh
Vessel Model: 1979 49ft Marine Trader RPH
Join Date: Jun 2019
Posts: 365
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Had to use a torch on mine. Well, the second one. I beat the hell out of the first one trying to get it off and had to grab a backup pulley off an old pump I had laying around. Lesson learned. They warp and go out-of-round easily when manhandled. Heat and gentle persuasion from a rubber mallet. Usually when some heat, they will just pop off.
__________________
"Everything on your boat is broken.... You just don't know it yet."
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07-12-2021, 08:26 AM
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#5
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Guru
City: Oconto, WI
Vessel Name: Best Alternative
Vessel Model: 36 Albin Aft Cabin
Join Date: Oct 2012
Posts: 3,145
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Can you get a gear puller on the front?
pete
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07-12-2021, 01:26 PM
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#6
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Guru
City: Mahón, Menorca
Vessel Name: Halcyon
Vessel Model: 1973 Grand Banks 50
Join Date: Mar 2015
Posts: 521
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I am sure the good folk at American Diesel can suggest how to do it.
__________________
Gilberto
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07-12-2021, 01:58 PM
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#7
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Senior Member
City: Northport
Join Date: Jun 2018
Posts: 371
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I did mine last year. Not to sound crud, but beat it off with dead-blow or rubber mallet. .
Heat, beat, repeat. (Plus oil, lol).
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07-12-2021, 03:35 PM
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#8
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Guru
Join Date: Jun 2008
Posts: 5,037
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Originally a slip fit now a corrosion fit.
Don't take NO for an answer. You have some good suggestions above.
__________________
Jay Leonard
Ex boats: 1983 40 Albin trunk cabin, 1978 Mainship 34 Model 1
New Port Richey, Fl
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07-14-2021, 11:25 AM
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#9
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Guru
City: Port Townsend, WA
Vessel Name: Traveler
Vessel Model: Cheoy Lee 46 LRC
Join Date: Nov 2011
Posts: 1,576
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Thank you for the suggestions, guys! Finally got the pulley off. Took some beating with a rubber mallet while pulling on it. Took awhile with about a half-millimeter progress every other whack... Now to pry the damn pump off! Removed the four bolts and it will not budge, either. Will carefully use a chisel and hammer. Planning on a much easier time installing the new pump... LOL
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07-14-2021, 12:58 PM
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#10
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Guru
City: Boston
Vessel Name: Adelante
Vessel Model: IG 30
Join Date: Nov 2016
Posts: 1,611
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Quote:
Originally Posted by Moonfish
Planning on a much easier time installing the new pump
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put anti-seize on the threads and on pulley to pump mating surface. Will make the next replacement in 20 or 30 years a breeze. I covered the gasket in hi temp RTV so I'm hoping for 40 years.
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07-14-2021, 10:55 PM
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#11
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Guru
City: San Diego
Vessel Name: SEA WOLF
Vessel Model: 1979 CHB 41 Trawler
Join Date: Feb 2020
Posts: 999
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Yeah I did mine a few months ago. First one came off no problem, second one I used a gear puller after trying the pry/whack/pb blaster route for a while.
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