WESTERBEKE 7.6 Diesel Winterizing - Problem

Discussion in 'General Discussion' started by Boat Guy, Oct 19, 2019.

  1. Boat Guy

    Boat Guy Well-Known Member

    Ok,

    I don't recall ever having this issue....I closed the seacock and pulled the hose from the seacock and lowered into a 5 gal. bucket with 4 gal of antifreeze.

    I drained the strainer and poured antifreeze in that too and closed it back up... Started the Geni and she ran fine, but she wasn't pulling from the bucket. I didn't have any issues that I recall with blockages. I shut her down and got another impeller...

    I opened the waterpump and one vane on the impeller was broken so clearly it wasn't a bad impeller, but naturally I replaced it...

    Then I opened the heat exchanger on the inboard side and checked for blockage. I ran a metal hangar down the tubes to make sure they were clear.

    I took off the raw water hose between the pump and the strainer and the one between the pump and the heat exchanger. I blasted water from the hose through....no obstructions....

    Resealed everything and restarted, and no water coming out exhaust...

    Can the exhaust side be so blocked that it would obstruct all water? Anyone have this issue?

    Edit:

    Another note i forgot to add....

    I ran the genie for a few seconds without the impeller in to make sure the pump was turning fine, and it is...
     
    Last edited: Oct 19, 2019
  2. ZZ13

    ZZ13 Well-Known Member

    Nov 25, 2009
    Lady's Island, SC
    2001 400 Sedan Bridge
    Cummins 450 Diamond
    Are you sure the pump is turning. Bump the starter with the impeller cover off and make sure it turns.

    Additionally is the hose between the strainer and the pump now drained dry? When I had a marginal impeller my pump wouldn't prime if there was any air in that line.
     
    Last edited: Oct 19, 2019
  3. Boat Guy

    Boat Guy Well-Known Member

    Sorry, I edited my post....I did check the pump turning...

    I actually used dock water hose to run hose from the water pump side of the hose to the strainer with the hose still off the seacock... When I ran the water it flowed right through the strainer out the other side and just poured water into the bilge.....So, no blockage and for sure water in the line and strainer when I reattached the hose to the water pump...

    I didn't reopen the seacock, or need to, because the hose is in the 5gal bucket. the end is at or near the bottom of 4 gal of antifreeze....

    Perhaps it won't prime, but I don't recall having this problem before...I'm guessing a massive blockage on the exhaust side, but I'm having a hard time believing it. Because I would think it would still trickle out.
     
  4. Express 390

    Express 390 Active Member GOLD Sponsor

    288
    Sep 14, 2018
    South Shore of Long Island NY
    1986 SeaRay 390 EC
    1993 SeaRay 290 DA single 7.4 /Bravo 2
    Twin 454 Crusaders inboards 4 blades
    If the Impeller Has a keyway on the shaft make sure the key didn't slip off when you pushed the Impeller on! The shaft might be turning inside the Impeller;)
     
  5. Boat Guy

    Boat Guy Well-Known Member

    @Express 390 Thanks, but no, there is no keyway....It's a slot the bar fits in...straight forward and no way to get it wrong.
     
  6. Express 390

    Express 390 Active Member GOLD Sponsor

    288
    Sep 14, 2018
    South Shore of Long Island NY
    1986 SeaRay 390 EC
    1993 SeaRay 290 DA single 7.4 /Bravo 2
    Twin 454 Crusaders inboards 4 blades
    Then it might just be an airlock "Good Luck"
     

Share This Page

Show Sidebar