Mecahical seal and bearing test. Part 1 - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 11 (permalink) Old 05-03-2020, 08:39 AM Thread Starter
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Iv taken upon myself to do a quick test on a newly installed mechanical seal. I searched high and low for info on leakage tests that have been done after the seal was replaced and i could not find any. So i decided to come up with a way of test it myself. The reason for the replacement of the seal was because of a coolant leak into the oil. The sealed bearing looked good as did the impeller and shaft so none of them were replaced.
Right so first things first.
Install the new seal.
Next get some gasket paper and cut it to the size in the picture.
Place the gasket around the water pump.
Next put the clutch side cover on an install the 3 bolts around the water pump. No need to install them all.
Next thing is to seal off the location for the radiator pipe. Use anything that will hold the water. I just used plastic and a hose clip.
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Last edited by Will750; 05-03-2020 at 08:50 AM.
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post #2 of 11 (permalink) Old 05-03-2020, 08:47 AM Thread Starter
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Part 2.
Then just fill it with water in the location of the metal coolant pipe.
Next attach a drill to the impeller shaft. Take note that a quick spin by hand first is nessecery as depending on the gasket paper thickness you impeller might rub the outer cover.
Final step is to give her a spin with the drill. In my case it did not leak so the seal fixed the problem. If you are unsure just leave the water sit for a while and see does it seep passed the bearing. If not the jobs a good one.
Hope this might help anyone who needs to install and test theres. Here is a link to the video of the drill test.https://youtu.be/va3L2YabOjM
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Last edited by Will750; 05-03-2020 at 08:52 AM.
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post #3 of 11 (permalink) Old 05-03-2020, 04:06 PM
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Neat test! Was thinking there must be a part 2. Now I see, said the blind squirrel.

Brand new engine block or you just painted it to titty condition? 'Bout the cleanest ever seen.

Nice work.

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Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
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post #4 of 11 (permalink) Old 05-03-2020, 04:11 PM
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Technical term might be Maniacal Seal. It's an insane setup.

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__________________________________________________ ____________
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post #5 of 11 (permalink) Old 05-04-2020, 02:53 PM Thread Starter
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Freshly painted. Got sick of looking at the dull gray. Yeh the seals are a real pain in the ass but its done for another bit now anyway.
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post #6 of 11 (permalink) Old 05-04-2020, 03:37 PM
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We like pics here, show us when you can.

2003-21k mi
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__________________________________________________ ____________
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post #7 of 11 (permalink) Old 05-04-2020, 04:48 PM Thread Starter
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Im just in the middle of putting her back together. Still waiting on gaskets to arrive so once its back together i will post a few pics
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post #8 of 11 (permalink) Old 05-07-2020, 04:09 AM Thread Starter
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Quote:
Originally Posted by Spockster View Post
We like pics here, show us when you can.
Here she is in all her glory. Looks badass if you ask me 😁
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post #9 of 11 (permalink) Old 05-07-2020, 04:39 AM
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Nice! Was about to say something corny like it's the crown jewel or Hope diamond.

Clutch cover polished?

Seems I have a fetish for highly polished aluminum. 😉 Mm, shiney!

Keep pics coming .

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
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post #10 of 11 (permalink) Old 05-07-2020, 05:56 AM Thread Starter
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Quote:
Originally Posted by Spockster View Post
Nice! Was about to say something corny like it's the crown jewel or Hope diamond.

Clutch cover polished?

Seems I have a fetish for highly polished aluminum. 😉 Mm, shiney!

Keep pics coming .
lol yes as is the stator cover. Im still waiting on gaskets to arrive via DHL from germany. Should be here in the next day or 2 hopefully. So more pics as soon as its complete. Might aswell lube the splines again while i wait 😁. I just hope when all said and done that i still dont have coolant pissing into the oil 🤞
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