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Old 20-09-2019, 15:49   #1
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Oil Filler Yanmar 3JH2E

Hi, there are two oil fill points on our Yanmar 3JH2E motor. One is on top of the rocker cover (where I would expect one to be) and there is another over the timing gears at the front of the injector pump. There is a breather from the timing gear cover to the air intake and we get some oil collecting in the air intake housing. Can someone tell me if we have to add oil to the gear housing or does the engine oil circulate here. There is no dipstick or level indicator at the gear housing. Neither the owners manual or the service manual make any mention of adding oil to the gear housing.
Thanks for any advice that will straighten this out for us.
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Old 20-09-2019, 16:15   #2
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Oil Filler Yanmar 3JH2E

Most all have two caps. Itís in case the engine is installed where one isnít accessible, just use the other, they both connect to the engine sump.
The accessory gearbox has engine oil flowing through it, itís not a separate sump.
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Old 20-09-2019, 16:53   #3
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Re: Oil Filler Yanmar 3JH2E

Thanks for the advice. I thought that this was the case - just needed reassurance
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