How to tell the water pump is going bad?

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by GoGoGavin41, May 9, 2013.

  1. GoGoGavin41

    GoGoGavin41 Qapla'!

    Nov 29, 2009
    The Holy City
    So I'm loving my new to me 07 990. Hopefully going to get my brakes sorted out this weekend, but other than that the bike is running great!

    But I am preparing myself for the inevitability that the water pump is going to go bad (I'm pretty certain it hasn't been changed by any previous owners). The only problem is, I don't know how to tell it's going bad. I've read something about milky oil? I assume you see that during an oil change, but at that point have you already done any damage? Is there any other way to tell?

    ***P.S. I did see some water dripping out of one of the hoses the other day, but it smelled/felt/tasted like water. Not sure where the hose was running from, I assume maybe the radiator or something? Just some moisture condensing/getting pushed out?
  2. Katoom72

    Katoom72 Been here awhile

    Jun 3, 2012
    Put the bike against a wall, leaning over a bit.

    Pull the oil filter while having it leaned over -> no oil comes out.

    check for this: [​IMG]
  3. midfat

    midfat wholesome dirtiness

    Jul 30, 2007
    Socal, between the mountains, desert and ocean
    Maybe my bike is an anomaly, but I had not milky oil, no wavy pleats on the oil filter and only occasional condensation visible in the sight-glass when the bike was cold. But that didn't stop the leaky water pump from shutting me down. When I finally pulled the shaft, I found a bead of coolant behind the water seal. Yep, there it was. Changed the pump shaft/seals and I've ridden her cross country with nary an issue.

    Here's my advice - and I'm prepared to get flamed for this - carry with you an 8mm nut driver and sharp folding pocket knife. Unless you see clear signs of coolant contamination in the oil, wait till you have an issue. Here's what will happen: The low oil pressure warning light will start to flicker. If you ignore it, the engine will stall. You'll try to restart it, but all you'll hear is clackity clack. Roll the bike off to the side of the road, lay it on it's side, pull the oil filter cover off, pierce your knife through the end of the filter, pull the filter and discard. Replace the filter cover and ride your bike home (or to a shop) to have the pump shaft/seals replaced.

    On mine, I suspect it was just a tiny knick on the seal or something.
  4. turbojugend208

    turbojugend208 Been here awhile

    Apr 6, 2012
    kick till monday :eek1
  5. PABiker

    PABiker Anywhere but here

    Dec 1, 2006
    Pittsburgh, PA
    Put on kickstand, remove clutch cover, look for this: