I would like to purchase a Rochester Quadrajet carburetor model 17086115 which was used on the Chrysler LM318 engines in my 1988 Marinette 32. The model number is stamped on the carburetor housing. Anyone have one? New-old-stock preferred; used OK if rebuildable. Thanks!! Floyd

Thanks Tim,

Can you read the numbers stamped vertically on the throttle-linkage side of the carburetor? They are usually just above the shaft that controls the secondary throttle plates (large ones). The are numbers like 17080563 or 17086115. Thanks, Floyd

You might want to make sure you get a marine carb. The auto versions have way too many vacum lines on them.

I have a problemsome Rochester that at idle one throat does not seem to be getting the gas it needs. It runs well after warmed up so I am just using it till summer plays itself out, then I will need to figure what is going on.

Thanks Jeff and others for the additional information. I really want to get the exact same carburetor that is on my LM318 so I can rebuild it this winter and have it as a spare next spring. The boat (with carbs) is on the Erie Canal and I am in Virginia. I really want to locate a Rochester Quadrajet number 17086115 stamped on the housing as it is on the two I already have. If anyone can help me get this particular Quadrajet, I would appreciate it. If all else fails I have the Edelbrock and rebuilt options as you have pointed out. Thanks, Floyd

Thanks Tim. I have a 17080560 I bought on eBay but it is somewhat banged up due to poor packing. I wonder how it differs from the 17086115 I have. I know that both are marine carbs. Do you happen to know what the differences are? My 17086115s are on LM318BWL15s in my 1988 Marinette 32 FB Thanks again, Floyd

That man is wrong! Auto carbs are not made to flood inwardly. Huge difference.

Jeff

Hi Tim!

When you put the Edelbrock carb on your Marinette's LM318 was it a direct fit with no linkage or plumbing changes? Does the Edelbrock have the same automatic choke mechanism? (I suspect not and I am wondering what it takes to make the change).

The 17086115 and 17080563 look alike and are both marine carburetors. Do you know if your 17080563 was the carburetor supplied originally with your Marinette's LM318?

You mentioned that you might have preferred to keep the Rochester Qjet instead of the Edelbrock. What makes you think the Qjet works better? All I know is that my 17086115's work great and I want to keep them if I can. Perhaps I can put a 17080563 on the engine while I rebuilt the 17086115, but I will have to assure myself that the 17080563 will work on the LM318.

Thanks for your patience, Floyd

floyd, found the carb that may be the original #17084001 secondary flaps rusted badly excellarator pump stuck down.secondary butterfly stuck also .you may be able to rebuild it.
you can have it for shipping charges.i need to keep the good one .just realized it will work on my century bow rider.

tim

floyd ,i'll get with you next week new Edelbrock came in today waiting for the wife and k@n flame arrester to get here then we are to the money pit.i may sent it in the new Edelbrock box so don't get to happy when you see the box.

tim

Tim, I found it in my spam folder and replied a few minutes ago. Thanks, Floyd