Did I use the wrong impeller kit? 😡

[cmon74]

My stern drive is alpha1 gen 2 serial number 0F333583. I used quicksilver 8M0100526 water pump kit. Should I have used 817275Q05 Water Pump Impeller Repair Kit instead? It could explain some of my issues if so. Thank you

 

[Fun Times]

Unless you needed a new impeller housing due to inner scratching grooves, etc., you are good using 8M0100526 kit as it's just a general repair kit.​

The kit ending in #Q05 is shown with both plates and gaskets that would fit either mercruiser alpha one gen ii drives and vazer drives and is of a more complete kit with a new housing as they both fit MerCruiser Alpha One Gen II drives.

#562 fits MerCruiser Alpha One Generation II 4-stroke drives, Mercury 4-stroke Bigfoot Outboards...NOTE: The 3 piece faceplate and gasket contained in this kit can be used in place of the single piece over molded faceplate supplied in previous water pump impeller repair kits.

​

47-8M0100526 Water Pump Impeller Repair Kit,​

Mercury-Quicksilver 47-8M0100526 Water Pump Impeller Repair Kit

Mercury-Quicksilver 47-8M0100526 Water Pump Impeller Repair Kit genuine factory part not aftermarket. Fast shipping - Click here to see live inventory status

www.mercruiserparts.com

​

817275Q05 Water Pump Rebuild Kit,​

Mercury-Mercruiser 817275Q05 Water Pump Rebuild Kit

Mercury-Mercruiser 817275Q05 Water Pump Rebuild Kit genuine factory part not aftermarket. Fast shipping - Click here to see live inventory status

www.mercruiserparts.com

Application Guide

Merc p/n	Application	Model Number
817275Q05	MerCruiser Alpha One Gen II drives and Vazer	9122789
42038Q3	Mercury 6, 8, 9.9 and some 15hp 4-strokes	7890064
161543	Mercury 4HP, 4Stroke	7917503
89983Q1	Mercury 30 JET, 2-cycle Two- & Four-cylinder	1663731
8M0100526	MerCruiser Alpha One Generation II 4-stroke drives, Mercury 4-stroke Bigfoot Outboards	1661644
16159A03	Mercury 4, 5 & 6hp 4-stroke 1999 and up	8720195
89984Q5	Mercury/Mariner Four-cylinder and V6 Outboards	1663772
96148Q8	Mercury/Mariner Four-cylinder and V6 Outboards	1663822
89981Q1	Mercury/Mariner Outboards 4-9.8hp	1663665
59362Q08	Mercury Plastic 1- and 2-piece Body Seawater Pump	1661842

 

[Scott Danforth]

It could explain some of my issues if so.

Describe the issues in detail. List every step you took

 

[cmon74]

Describe the issues in detail. List every step you took

 

[cmon74]

Describe the issues in detail. List every step you took

I'll try keep this short. After replacing my 140 deg thermostat, My exhaust manifolds and elbows was reading the following temp with ir gun:
Starboard Manifold - 175/Riser - 115.
Port Manifold - 170/Riser - 104. Temp gauge reading 160. So I replaced the circulating pump and done the impeller. Everything went well with the impeller. I'm pretty certain the water tube lined up good. But after replacing the impeller, I'm getting water out of 2 weep holes on each side of the gear case. (I'll post a picture). Also after running the boat on my garden hose for about 20 minutes, the water coming out at the transom got a little steamy. I idled down to idle only rpm and it cooled back off. Maybe I ran it too long being on a garden hose? So I guess that brings a couple questions, is my manifolds too hot? And is the attached picture of the water coming out of the weep holes normal? I never noticed it before the impeller was changed.

 

[Scott Danforth]

first, water out of the idle relief ports is normal

second, you do not have enough water going to the muffs. use a 3/4" or larger hose, turn on full blast. there should be a spray of water coming past the muff cups, not the small trickle you have in the picture.

never run faster than 1500 RPM on the muffs, even a 3/4" garden hose can not supply enough water.

 

[Grub54891]

I burnt up my impeller and housing last year running on the hose out at my cabin. At home the water pressure is better and no issues. You should check the impeller again.

 

[ratdude747]

I burnt up my impeller and housing last year running on the hose out at my cabin. At home the water pressure is better and no issues. You should check the impeller again.

I'll third this... Based on a recent bad experience with poor muff operation and too many RPMs. Sure, I'm on a much older Mercruiser, but the same lesson applies. I had been been using the OP's style muff, but I ended up using a different style muff (the latest Mercruiser style with the skewer wire)... required drilling a couple holes to use, but there's a lot less blow-by at full blast. These big sterndrives get thirsty!

 

[cmon74]

first, water out of the idle relief ports is normal

second, you do not have enough water going to the muffs. use a 3/4" or larger hose, turn on full blast. there should be a spray of water coming past the muff cups, not the small trickle you have in the picture.

never run faster than 1500 RPM on the muffs, even a 3/4" garden hose can not supply enough water.

These temperature reading was done with a IR gun after running about 2 miles on the river. Do you think the manifolds are to hot? This picture was pulled from the internet to show where water is coming from after impeller change. My ear muffs are bigger then what's in the picture but my water hose is probably smaller than 3/4. I'm going to go drop it in the river soon and get new temperature readings. Thank you for your help