Hope Now I Will NOT Blow Up

[drbarbara]

Because one of my problems is that I like instant gratification, the idea of getting a rebuilt carb on e bay sounded like torture today. I found a carb place open on saturday and got for 160 dlls a rebuilt Holley 2bbl.

I replaced the carb, attached the throtttle linkage and the gas line (more about that in the next post) but then I ended up with an extra hose. In my old carburator there was a hose going from the starboard side of the carburator to the distributor, the hose is about 3 mm in inner diameter. The guy that sold me the rebuilt carb told me that the hose was a vacum hose and that marine carbs do not use vacum. The engine appears to run well without the hose attached to anything but it still makes me nervous to have a hose just hanging in the breeze. Please take a look.

What should I do with that hose?

http://www.docathome.us/BoatPictures/MVI_1875.AVI

Thanks

[randlemanboater]

All carbs.....all engines use vaccum, thats how the gas gets in.

Maybe he meant that marine distributors don't use vaccum, which may be true, but I think someone here observed that you may not have a marine engine in your boat so you probably need the vaccum line hooked up to the distributor for the vaccum timing advance to work correctly.

[drbarbara]

Ok on the distributor side, but the other side where should I plug in into?

[randlemanboater]

On most carbs there are a couple of nipples here and there to hook up vaccum lines to, I have never owned a Holley so I don't know about them.

Someone with the answer will be along shortly I'm sure.

[THEFERMANATOR]

If your distributor has a vacuum canister on it, that means it is NOT a marine distributor. And marine carbs do not have a vacuum hook-up as marine engines do not use it. Vaccum advance is there for auto use to advance the timing when the engine isn't under heavy loads to improve the economy. In marine applications this is not needed as a marine engine is always under full load at every given RPM point. You have just confirmed you have a truck engine in your boat. The next thing I would look for is a marine distributor to fit your engine as automotive distributors do not have flame arrestors in them to prevent sparks from igniting any fuel vapors. I would reccomend you get a timing light and set your timing to around 24-28 degrees total timing.

[BigDaddy]

Is it just me or does Ferm sound like he knows what he's talkin about.Saulte>