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??? Carburators On 502

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Old 02-03-2010 | 10:35 PM
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Originally Posted by cocktails
Hopefully an easy question for you knowledgeable motor guys. I have a couple carbs from my original 93' Merc 502's. I looked at the Carbs can't find any info or Manufacturer or part number. Does anyone know what type of carbs these are. I want to list them for sale but want to describe them acurately.

Don't know if Merc would have used more than one type back then.

Thanks in advance for any help.
Do you have a engine serial number???
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Old 02-04-2010 | 06:42 AM
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if it's a std 502 should be the edelbrock style carters, is the carb wider than long with the fuel line coming in the rear corner ?
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Old 02-05-2010 | 03:01 AM
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If they are 502's they will be Rochester Quadrajets.
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Old 02-05-2010 | 06:08 AM
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not here in the mid 90's...all mercs used carter's as there was a issue between merc and rochester...
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Old 02-05-2010 | 08:55 AM
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Holley 9381 830 cfm
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Old 02-05-2010 | 01:03 PM
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And the winner is????
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Old 02-05-2010 | 01:10 PM
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My guess is weber

1990-1992 #s 0C878221-0D824588 had QJets
1992-1993 #s 0D824589-0F114528 had webers


so 1992 was the change year and a 1993 should be webers..
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Old 02-05-2010 | 04:52 PM
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My Hp's have Holley, 850's
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Old 02-06-2010 | 03:56 PM
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Boat tech.Put up a picture.I'll eat my mouse if they are anything other than Q-jets.
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Old 02-06-2010 | 05:10 PM
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Originally Posted by fastlane40
Boat tech.Put up a picture.I'll eat my mouse if they are anything other than Q-jets.
It's not me that was asking about the what style carb it should be, We are waiting to see if (cocktails) will ever come back and give us an update to see who the winner is

With out a picture or serial number it would be just a guess because some where in that time frame MerCruiser went from using this style carb, http://www.mercruiserparts.com/Show_...esc=CARBURETOR

Over to a weber style like this, http://www.mercruiserparts.com/Show_...OR+%28WEBER%29

And that information can be found here. http://www.mercruiserparts.com/selec....asp?type_id=8
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