Vintage IRA
Cadet
- Joined
- Feb 24, 2010
- Messages
- 8
Got an 86 125hp that now has a fresh impeller. This is the first time I've fired the motor in a bucket of water instead of muffs.
I now have water misting out the the 2 mid-leg holes as it should. BUT, this is the first time I've noticed water running out the drain holes in the base of the water pump area near the bolt heads that hold the lower unit on. Pulled it back apart and put the garden hose on the plastic adapter that the engine feed tube goes in to see about leaks. Quickly found a hole in the Pump cover that must be there to allow the pump to self prime? Sent out a nice solid stream that would explain why the drain holes are present in the bottom of the pump cavity. Doesn't seem like the 1 hole spraying out of the pump cover could create a steady stream from all 6 drain holes below it. I then checked the plastic adapter. Fits tightly into the lower unit so I slid it out and onto the engine feeder tube. The top edge was a little
banged up from a previous owner. I took a knife and trimmed the tapered ID just at the edge to clean any burrs to help it start onto the tube when assembled. Seemed like it was a bit loose on the tube. Wondering if this might be where some excess water might be coming from. Grabbed a 1/4" O Ring at work and slid it on the tube before assembly in hopes it might slow down the water flowing out of the drain holes in the lower unit while running. Didn't seem to make a difference! Now I'm wondering if this is normal and just never saw it before because of the water muffs I've used in the past? Seems to be flowing enough water to cool? Doesn't trigger the overheat sensor as it did before. I'm guessing with the muffs excess spray I just never noticed this in years past? I'm covering the intake slots by 1/2". If the boat was in the lake I'd never know.
Any thoughts guy's?
I now have water misting out the the 2 mid-leg holes as it should. BUT, this is the first time I've noticed water running out the drain holes in the base of the water pump area near the bolt heads that hold the lower unit on. Pulled it back apart and put the garden hose on the plastic adapter that the engine feed tube goes in to see about leaks. Quickly found a hole in the Pump cover that must be there to allow the pump to self prime? Sent out a nice solid stream that would explain why the drain holes are present in the bottom of the pump cavity. Doesn't seem like the 1 hole spraying out of the pump cover could create a steady stream from all 6 drain holes below it. I then checked the plastic adapter. Fits tightly into the lower unit so I slid it out and onto the engine feeder tube. The top edge was a little
banged up from a previous owner. I took a knife and trimmed the tapered ID just at the edge to clean any burrs to help it start onto the tube when assembled. Seemed like it was a bit loose on the tube. Wondering if this might be where some excess water might be coming from. Grabbed a 1/4" O Ring at work and slid it on the tube before assembly in hopes it might slow down the water flowing out of the drain holes in the lower unit while running. Didn't seem to make a difference! Now I'm wondering if this is normal and just never saw it before because of the water muffs I've used in the past? Seems to be flowing enough water to cool? Doesn't trigger the overheat sensor as it did before. I'm guessing with the muffs excess spray I just never noticed this in years past? I'm covering the intake slots by 1/2". If the boat was in the lake I'd never know.
Any thoughts guy's?
