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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: 195
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: 2118
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: 151
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: 10966
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.
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” 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: 195
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: 195
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: 195
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: 10966
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
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” 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: 195
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: 1337
Loc: Temple, Texas
Gary is the man when we need a helping hand. Thanks Gary

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