Quadrajet 17059292

KX6D

Seaman
Joined
Aug 23, 2010
Messages
63
Greetings to all those blessed with wisdom! I seek you knowledge and appreciate the education...

I have 1980 Mercruiser 228. S/N 552xxxx. I'm going through the engine and have decided to go ahead and pull the carb. I noticed that the carb vent does NOT bend back down towards the throttle body. At first I thought a previous owner must of swapped out the carb. :mad: I brought it to work and cleaned it off to reveal 17059292. A simple search on here and Google gave me all kinds of info, including where to go buy a reman (with curved vent).

There is also a link on ebay for one (without curved vent)... http://www.ebay.com/itm/190726684278

A couple of threads on here also show pictures of this carb without the curved vent...
http://forums.iboats.com/showthread.php?t=366836

I'm convinced I have the proper carb...all the numbers line up! My question is, how important is the curved vent. I currently have a rebuild kit and float on the way from iBoats. I've rebuilt auto carbs years ago and confident I'll do fine. But should I re-think the rebuild and go with a reman or have it rebuilt my a marine shop...and if they do, is it customary for them to add the curved vent?

Last question... If I do rebuild this carb, what do you recommend I use for anti-corrosion? It looks like most shops use black spray paint! I don't think I can get Yellow Dichromate in a can. What are the pros using?!

Thanks for the education!

Dino - KX6D
 

500dollar744ti

Senior Chief Petty Officer
Joined
Jul 23, 2012
Messages
691
Re: Quadrajet 17059292

i would say it's pretty important for safety.

you can get a completely rebuilt, guaranteed to work marine carb on ebay for about $300, it's worth it if you don't want the trouble of rebuild, adjustment and all that.

i'm young, i have respect for carbs but i don't know them like the older generation. i can program your EFI all day long but i'd rather have someone who knows their stuff do my carb work.

i bought the rebuilt marine carb that's already coated and built using metals that won't corrode and such, i feel it's worth it.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Quadrajet 17059292

Q-jets don't have curved tubes for vents like some carbs do. The vent for the fuel bowl is shown in the picture below.

qjet.jpg

I just use regular black engine spray paint on the Mercruiser carbs. If I have time to let the carb set overnight, I use Rustoleum.
 
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