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how exactly do i change oil on 525sc 177

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Old 03-12-2011, 07:51 PM
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Default how exactly do i change oil on 525sc 177

thanks
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Old 03-13-2011, 01:38 AM
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You have to suck it out. The front and rear are separate and you have to do both sides. The front has the dipstick and the rear has a pipe plug. I always just used a 30cc plastic syringe with a 1/4" clear hose on the end to suck out the lube. Each side only holds a few ounces. Just use Merc HP drive lube to refill it.

Frequent lube changes are the secret to keeping the small blowers alive. Do it at least every 50 hrs.
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Old 03-13-2011, 08:10 AM
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I use a mitivac to get mine out - real easy like Griff said. I use the Merc Gear lube - at Griff's suggestion.
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Old 03-13-2011, 09:41 AM
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how much does it hold? is front and back separate when filling?
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Old 03-13-2011, 10:19 AM
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Thanks Alot I Did Read In A Thread 8 Oz Front
4 Oz Back
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Old 03-14-2011, 01:43 AM
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Originally Posted by Drock78
how much does it hold? is front and back separate when filling?
Yes, they are completely separate areas independent of each other.

Originally Posted by schnydo
Thanks Alot I Did Read In A Thread 8 Oz Front
4 Oz Back
I don't even think its that much, but its impossible to get it all out, so that may be what it is when its 100% empty.


Also, make sure to change the lube in the seapump fuel pump. It gets fuel diluted too. Use the HP gear lube as well. Can't even suck it out unless you remove the fuel pump.. It has to be dumped out, unless you have the newer model that has a plug on the bottom.
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Old 03-14-2011, 08:46 AM
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makes sense
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