05 kodiak leaking oil - Yamaha Grizzly ATV Forum
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post #1 of 17 Old 01-10-2017, 07:19 PM Thread Starter
 
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05 kodiak leaking oil

So my work Atv has been parked in the shop for 2 days and today I noticed a puddle of oil beneath it. When I bought it 4 mounts ago I noticed that where the rear drive shaft comes outta the motor it's leaking. The weird thing is that it wasn't very severe until last oil change. I put ampsoil 10w40in it and am wondering if that is the problem. I looked at bossbearing and found a engine seal kit for it. I'm wondering if anyone knows if I can buy just the reAr driveshaft seal anywhere or if it's the oil I have in it? If no one knows or recommends it I will buy the entire kit.


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post #2 of 17 Old 01-10-2017, 07:25 PM
 
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You can buy just rear seal from any Yamaha dealer or any online Yamaha parts site. You have lots of online choices to choose from.

The Yamaha Part Number you need is:
93102-35012-00

It's located under "Middle Drive Gear" diagram, item #13.
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post #3 of 17 Old 01-10-2017, 07:30 PM Thread Starter
 
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Thanks I will do that but in still wondering what caused it to do that so suddenly


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post #4 of 17 Old 01-10-2017, 07:37 PM
 
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[QUOTE=Kodiakkid;805738]Thanks I will do that but in still wondering what caused it to do that so suddenly
sometimes seals fail for no particular reason but depending on year vs milage when seals set around for long periods of time they tend to dry out and when you start using them they start leaking

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post #5 of 17 Old 01-10-2017, 07:38 PM
 
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The seal has been leaking for quite a while as you said. It probably just had a little oil sludge built up around it. When you did a oil change you put in a good quality oil with lots of detergents. This oil probably just cleaned up the contaminates and caused the leak to happen faster.
Or sometimes axle seals just start leaking quickly. I have had that happen without doing an oil change. Could have been a stick, rapped with grass, etc...and the seal got damaged on your last ride. It happens sometimes.
I just changed my front diff pinion seal today because it started leaking on my last ride. Didn't leak a drop before it, but was leaking lots by the end of it, and had let water in as well, milking the oil.

Additionally, it is a known fact that some oils will leak past worn seals faster than others. Many synthetic oils will do this due to its superior lubricity.

Either way you have a worn, leaking seal. Replace it and ride on.
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post #6 of 17 Old 01-10-2017, 07:44 PM Thread Starter
 
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Thanks for the advice and that's probably what happened. Since when we changed oil we stripped the plug head so we had to drop the filter thing next to it. Dezz, you said you've replaced that same seal once before, can you give me advice on how to do it


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post #7 of 17 Old 01-10-2017, 08:31 PM
 
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It's not a hard job actually. Looks worse than it is.

Unbolt the rear diff and slide it backwards. Seperate the rear driveshaft at the boot in the middle (it should just slide/pull apart). Now remove the u-joint and rear yoke assembly from the back f the engine. This allows you access to the nut holding the yoke coupler. Remove the nut and washer and pull the yoke coupler straight out.
Now pry out the old seal. This can be done using a screwdriver, but be careful not to damage or scratch the shaft or the housing. Rub a little oil on the outside of the new seal and tap it back into position. Now reassemble everything.
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post #8 of 17 Old 01-10-2017, 08:37 PM
 
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Forgot one thing....drain the engine oil before you start anything. If you don't you'll make a oil mess once you pull the yoke coupler as it will come out then.
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post #9 of 17 Old 01-10-2017, 09:12 PM Thread Starter
 
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Do you think I can use old oil


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post #10 of 17 Old 01-10-2017, 09:24 PM
 
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Quote:
Originally Posted by Kodiakkid View Post
Do you think I can use old oil


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What do you mean by this?
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post #11 of 17 Old 01-10-2017, 09:49 PM Thread Starter
 
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When I drain the oil if I keep it clean enough can I reuse it


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post #12 of 17 Old 01-11-2017, 06:24 AM
 
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Quote:
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When I drain the oil if I keep it clean enough can I reuse it


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For the cost of oil...don't reuse it!
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post #13 of 17 Old 01-11-2017, 07:09 AM
 
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I do not recommend ever reusing drained engine oil. Your just asking for trouble.
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post #14 of 17 Old 01-11-2017, 03:48 PM Thread Starter
 
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Oaky thanks I won't will spray my frame with the oil then


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post #15 of 17 Old 01-11-2017, 04:15 PM
 
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Quote:
Originally Posted by Kodiakkid View Post
Oaky thanks I won't will spray my frame with the oil then


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Do not do this. This will actually speed up corrosion. Used engine oil has acids in it (a byproduct of burning gasoline). This acid will speed up corrosion.
I have personal experience proving this. Had a friend of mine who sprayed the interior of Ford truck with used engine oil (under the carpet in the rear cab corners). I warmed him not to do it. About 1 year later there was holes exactly where he sprayed the oil. It eat a hole right through it. Even I never expected it to happen that fast.

New engine oil is fine. Used is not. That's part of the reason why we do oil changes.
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