Please note this thread has been inactive for 90 days. For the best results, please start a new thread.
Results 1 to 3 of 3
  1. #1
    Seaman Apprentice
    Join Date
    Jul 2010
    Posts
    34

    Default How to Change Water Pump in Volvo 4.3L Penta V6

    My buddy's engine is overheating. Need to know how to test water pump (i.e. will it be loose like in an auto) and to learn how to remove and replace and even where to buy a good rebuilt water pump. Do they have thermostats (scuse if a barney question).

  2. #2
    Captain
    Join Date
    Jun 2008
    Location
    Chisago Lakes, MN
    Posts
    3,411

    Default Re: How to Change Water Pump in Volvo 4.3L Penta V6

    It sounds like your refering to the engine circulatation pump. That is not typically the cause of overheating. I would start with the raw water impeller located in the housing mounted on the harmonic balancer. Take of the cover off and carefully pry the rubber impeller out of the housing. Those impellers should be changed every two years to prevent further issues.

    Let us know what you find.

    And yes, they do have thermostats.
    '88 Baretta Success 200
    Volvo Penta AQ260/275

    '96 Weeres Suntanner 24
    '01 90hp Johnson

  3. #3
    Honorary Moderator Emeritus Don S's Avatar
    Join Date
    Aug 2004
    Location
    Western WA.
    Posts
    62,323

    Default Re: How to Change Water Pump in Volvo 4.3L Penta V6

    Do you have a full model number or serial number for this engine? Not all the raw water pumps were on harmonic balancer, some were belt driven.
    Don S.


    Please, no PM's (Private Messages) regarding boat/engine problems.
    That is what the forums are for.
    Only forum/moderator issues will be answered in PM's.

Similar Threads

  1. Volvo Penta 4.3 GL Sea Water Pump, Where to buy???
    By boostnm3 in forum Volvo Penta I/O & Inboard Gas Engines & Outdrives
    Replies: 8
    Last Post: June 28th, 2010, 05:34 PM
  2. Volvo 8.1 Water Pump Impeller Change
    By dennison17 in forum Volvo Penta I/O & Inboard Gas Engines & Outdrives
    Replies: 7
    Last Post: July 2nd, 2009, 05:49 PM
  3. Volvo 8.1 Water Pump Impeller Change
    By dennison17 in forum Cobalt Boats
    Replies: 1
    Last Post: June 8th, 2009, 07:26 AM
  4. Volvo penta water pump
    By nimrod69 in forum Volvo Penta I/O & Inboard Gas Engines & Outdrives
    Replies: 21
    Last Post: December 1st, 2008, 09:05 AM
  5. Raw water pump on volvo penta 5.7
    By captmello in forum Volvo Penta I/O & Inboard Gas Engines & Outdrives
    Replies: 2
    Last Post: July 17th, 2008, 07:25 PM
  1. iboats Forum Directory - Over 100,000 forum posts organized by topic