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#12247442 - 05/15/17 11:16 PM oil use on mercury 96 efi
keneth allen Offline
Outdoorsman

Registered: 01/22/09
Posts: 196
I recently replaced my old carb engine with a rebuilt 200 mercury efi. The engine during start up smokes a lot and seems to use a lot of merc oil. Any ideas what would cause this and the fix. Thanks Ken

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#12247503 - 05/16/17 04:50 AM Re: oil use on mercury 96 efi [Re: keneth allen]
TLW Online   content
Extreme Angler

Registered: 11/16/06
Posts: 2197
Loc: ft worth
do you know why it was rebuilt?

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#12248409 - 05/16/17 03:35 PM Re: oil use on mercury 96 efi [Re: keneth allen]
hogbus Offline
Outdoorsman

Registered: 01/30/16
Posts: 202
Loc: texas
There is a thread on this at BBC. It might be a check valve on reserve oil tank. Cheap fix. Mine does it also. Once I put the Spurs to her it goes away for the rest of the day. Next day we start all over. Good luck JD
_________________________
1996 Champion 191 Mariner 200 EFI original owner!
2013 Basscat Puma FTD 250 ProXs 10' Blades
Go Hogs!

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#12250456 - 05/17/17 06:26 PM Re: oil use on mercury 96 efi [Re: keneth allen]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 11095
Loc: Littlefield Tx & Lake A. H. US...
I have seen the oil rod connected upside down on more than one Merc. Mark on the pump connection should line up with a mark on the oil pump body at idle.
_________________________
´┐ŻThe world will not be destroyed by those who do evil, but by those who watch them without doing anything´┐Ż Remember what He has done and remember that He is not done yet! GOD IS GOOD

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#12252024 - 05/18/17 03:33 PM Re: oil use on mercury 96 efi [Re: gary purdy]
keneth allen Offline
Outdoorsman

Registered: 01/22/09
Posts: 196
Thanks, good answers with excellent possibilities. I will have a mechanic look at these suggestions.

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#12252857 - 05/19/17 06:52 AM Re: oil use on mercury 96 efi [Re: hogbus]
keneth allen Offline
Outdoorsman

Registered: 01/22/09
Posts: 196
Thanks for the info, how do you check to see if this is the problem?

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#12252868 - 05/19/17 07:01 AM Re: oil use on mercury 96 efi [Re: gary purdy]
keneth allen Offline
Outdoorsman

Registered: 01/22/09
Posts: 196
How big a job is this to do this check. I discussed your answer over the phone with the mechanic that installed the oil pump and thought it was right but usually not the problem. However it is a problem for me so I need to have it checked. The other suggestion was to look at the check valve.
Thanks again. ken

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#12254539 - 05/20/17 09:48 AM Re: oil use on mercury 96 efi [Re: keneth allen]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 11095
Loc: Littlefield Tx & Lake A. H. US...
The oil pump connection to the throttle is easy to check, just see if the 2 marks are lined up. http://continuouswave.com/whaler/reference/mercuryOilInjection.html
_________________________
´┐ŻThe world will not be destroyed by those who do evil, but by those who watch them without doing anything´┐Ż Remember what He has done and remember that He is not done yet! GOD IS GOOD

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#12260091 - 05/23/17 10:40 PM Re: oil use on mercury 96 efi [Re: gary purdy]
keneth allen Offline
Outdoorsman

Registered: 01/22/09
Posts: 196
Gary, Thank you, thank you GREAT information!!!!!

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#12260149 - 05/23/17 11:54 PM Re: oil use on mercury 96 efi [Re: keneth allen]
Freeman Clark Offline
Extreme Angler

Registered: 03/18/05
Posts: 1347
Loc: Temple, Texas
Gary is the man when we need a helping hand. Thanks Gary

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