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Old 11 February 2004, 07:56   #1
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Oil Pump

The used Ocean 6.25M Iíve recently purchased is fitted with a Johnson 150VRO V6

Iím going to use it for a while, worry about the fuel consumption later and may be change it in a couple of years. While Iím using it I plan to disconnect the VRO and run 50:1 pre-mix. Iíve heard horror stories about the reliability of the pump, however I always trusted the 2-stroke pumps on motorcycles and previous outboards Iíve run.

Does anyone know if I should do anything other than disconnect the pipes to the block, and plug the holes? Iíll decide on removing the pump completely when Iíve seen whatís behind it in regard to drive shaft seals etc.

I think I can work out what to do with the electrics to stop the low oil warning alarm, but if anyone has already done it then perhaps they could let me know.

Also, its probably just me, but I canít find an engine number anywhere on the block, can anyone point me in the right area?

Thanks

Nasher
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Old 11 February 2004, 08:30   #2
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ENGINE NUMBER

The engine No. should be on the leg.
It is on my 90 which reads BJ90 SLEOC
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Old 11 February 2004, 09:02   #3
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In discussion with some older members of this site ( that narrows it down to 2) he was telling me a very experienced outboard engineer recomend adding a small amount of 2 stroke to the fuel in the boat anyway. (150 to 1)

If the autolube fails then you still have some lubrication, it made some sense to me
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Old 11 February 2004, 12:05   #4
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Country: Other
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Engine: Suzi DT200EFI, DT9.9
MMSI: "Mmmmm SI" she said!
Join Date: Jan 2004
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Thanks guys

I'll have another look at the Leg to see if I can find the number.

Stuart - I did think of putting oil in the fuel as well, however if the pump does fail, its going to be quite a while before I realise its not working. The oil tank is very large and will only go down very slowly anyway, so it will take a keen eye to realise the level has not dropped. In the mean time I'm happily running around with a third as much oil as I should. Anyone have any thoughts?

Nasher
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Old 11 February 2004, 13:02   #5
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Country: UK - England
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Make: A BLACK Stealthly Metzeler
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Engine: Johnson 70hp VRO - not steathly at all!
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Johnson VRO's!!!

a quick look on the American forums will reveal the answer to this question.

Essentially, the oil feed into the pump needs to be plugged, disconnect the sensor wire (& tape up), then run the engine on a premix of 50 > 1.
DO NOT run the engine on a premix of 150 > 1 as this is too lean.

& yes, this is what I've done on my engine.

Pete
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Old 11 February 2004, 13:11   #6
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Suzi you have a pm

pm sent to suzi
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Old 11 February 2004, 16:14   #7
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MMSI: "Mmmmm SI" she said!
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Thanks for the info pete, I've managed to find a couple of the American forums as suggested, and just as you described it looks easy.

Anyone got a Workshop manual for this engine they would like to sell.

Nasher
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Old 11 February 2004, 16:30   #8
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Re: Oil Pump

Quote:
Originally posted by Nasher
The used Ocean 6.25M Iíve recently purchased is fitted with a Johnson 150VRO V6

Iím going to use it for a while, worry about the fuel consumption later and may be change it in a couple of years. While Iím using it I plan to disconnect the VRO and run 50:1 pre-mix. Iíve heard horror stories about the reliability of the pump, however I always trusted the 2-stroke pumps on motorcycles and previous outboards Iíve run.

A nice engine. Nothing like as thirsty as some would have you believe. If the pump is working, trust it to do the job. Why start bu**ering about unnecessarily? Do make sure the oil system is properly primed though. Instructions for this are in the hand book.
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Old 11 February 2004, 18:11   #9
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Country: Other
Town: Principalite d'Chaos
Boat name: The Nashers Revenge!
Make: Ocean & Bombard
Length: 6m +
Engine: Suzi DT200EFI, DT9.9
MMSI: "Mmmmm SI" she said!
Join Date: Jan 2004
Posts: 4,147
The pump really does have a bad reputation, and I'm not sure I'll know quick enough if its not working, a workshop manual or owners handbook would be very useful if I can find one so I can at least test the flow rate etc.

I suppose the big question is How do I know the pump is working as it should?

On the plus side plenty of people have said its a good engine apart from the Oil pump.

Nasher
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Old 11 February 2004, 18:28   #10
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The handbook method to know whether it is working is to use oiled fuel along with the pumped oil and note whether there is a drop of level in the tank, over a period of time. My one worked fine. For info. on fuel consumption, it used about 1lt/mile on a 6.5mtr rib.
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