Evinrude 9.5 ho Not pumping Water

[Harritwo]

68 Evinrude Model 9822E is not pumping water. Water Pump Housing, Impeller, Tube, O-Ring, and Shift Rod Boot Replaced with NOS.

Once the Tube leaves the Waterpump in the Gearcase schematic, it goes into the lower unit, via the Shift Rod Boot. There is nothing else inside that i can see in the engine or the schematic.

If i place the gear case in a bucket of water, Place a Drill Motor on the Shaft and spin the shaft, the Pump moves water through the tube.

I have removed the T-Stat, Run water through the t-stat and get water is coming out in the lower unit.

When the engine is running, there is exhaust coming our the Pee tube.

What am i missing here?

 

[racerone]

Water has to be about 6 " above the pump in a test bucket.----The pump is not self priming.

 

[Harritwo]

I had the engine sitting in a 55 gal drum, full of water, running with a infrared thermometer scanning, I shut it down when the temp started over 180. Right now, there is no T-Stat installed, The weep tube is clear, the passages appear to be clear, the impeller was intact when it was disassembled

 

[Harritwo]

I had the engine sitting in a 55 gal drum, full of water, running with a infrared thermometer scanning, I shut it down when the temp started over 180. Right now, there is no T-Stat installed, The weep tube is clear, the passages appear to be clear, the impeller was intact when it was disassembled

 

[racerone]

These pumps are elegantly simple.-----Did it work before you replaced the parts with the NOS bits, yes or no ?-----New grommet installed in the pump housing, yes or no ?----Compression test done as a blown head gasket can cause cooling problems !

 

[Harritwo]

It hadnt been run in years, My son got it in a trade and we are trying to bring it back to life. New Grommet, new O-Rings, etc.. No Compression Test yet. I will run one and get back to you.

 

[kbait]

Did you replace the copper water tube? If so, how did you install it into upper grommet? If watertube is not connected to upper grommet, no water to powerhead and no water coming out of exhaust relief port.

 

[Sea Rider]

Probably there's a misalignment between water pump's upper rubber grommet and powerhead's bronce pick up tube, drop lower leg and re align it agaiin till starts pumping as it should..

Happy Boating

 

[F_R]

The upper end of the water tube is held in place in the bottom of the powerhead by a retainer. Question: Did the water tube pull out of the retainer, yes or no? Some people say they have successfully gotten it back in without removing the powerhead. According to design, you are supposed to remove the powerhead. A scarey job for the novice.

P.S. Did you remove the powerhead to replace that shift rod boot?

P.P.S. There is no "upper water tube grommet" There is an o-ring, a locating washer, and the retaining ring.

P.P.P.S. I've never managed to replace the shift rod boot or water tube retainer without removing the powerhead. But I've sure removed a lot of powerheads. After the first four or five, it isn't so bad.

 

[Harritwo]

I did remove the power head, took several days the first time, as i wasnt at all sure how it came out. Plate, Shift Boot, O-Ring, Retainer all installed new, Grommet new in pump.a. I have the lower unit off now, need to pull the powerhead again to replace the shift boot. It was torn when i removed the lower unit.

 

[F_R]

Well, if you did all that, then that theory goes out the window. Sorry, I don't know what the problem is now. Pump not pumping, water tube not connected, plugged-up powerhead would be the "normal" reasons. Can't diagnose it from here.

 

[scout-j-m]

If there is no thermostat, you could possibly hook a hose directly up to the water tube and see if you get water flow. At least that would tell you if the problem was the pump vs clogged water passages.