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Old 01 May 2012, 18:15   #1
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Which oil pump for Tohatsu 9.8hp?

Last time I changed the gear box oil in my Mariner 5hp, I just used a tube of gear oil and squeezed it in.

The 9.8hp is slightly bigger, so thought it might be worth getting one of the pumps to get it all in easier. Looking on eBay though, it's not obvious what would be suitable for this engine.

Can anyone recommend anything suitable please?
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Old 01 May 2012, 18:20   #2
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Can anyone recommend anything suitable please?
Yeah, there's a Quicksilver pump and adaptor - I bought one and haven't used it yet. I'll check the details tomorrow for you.
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Old 01 May 2012, 21:47   #3
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The Yamaha pump is a better unit if you can find one. I've got both and I don't use the QS one anymore unless filling a Mercury as the Yam one didn't come with the thread adapters for US engines.
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Old 02 May 2012, 04:08   #4
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Any idea which size thread adapter it would need for the Tohatsu 9.8hp?
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Old 02 May 2012, 04:14   #5
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I got mine from Black Dog Marine, on next day delivery for my tohatsu 8hp .

Says Lube Pump Adapter on the box, part number: 91-883704Q03

It says "Adapts gear lube pumps with 3/8"-16 UNC threads to gear cases with 8x1.25 metric threads."
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Old 12 May 2012, 16:59   #6
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Thanks for the info, but that looks like just an adapter for the end. What else do you use with that?
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Old 12 May 2012, 21:54   #7
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Just get the standard quicksilver pump with that adapter
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Old 13 May 2012, 02:27   #8
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Thanks for the info, but that looks like just an adapter for the end. What else do you use with that?
The QS or Yam pump threads into a quart bottle. The hose stays the same and the adaptor pushes into the other end of the hose and screws into the lower unit.

jky
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Old 13 May 2012, 13:39   #9
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Thanks guys, just ordered a it from fleabay,including the adapter. Silly that it's cheer to order from the USA than anyone in the uk
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