Carb help: Back to the 78 Bayliner Victoria I spoke of earlier. The engine bogs down at about half to 3/4 throttle. It picks back up when wide open but I still am missing speed. Should...

Rocky from CA Loc: Central California. Home base is Bakersfield

Back to the 78 Bayliner Victoria I spoke of earlier. The engine bogs down at about half to 3/4 throttle. It picks back up when wide open but I still am missing speed. Should I rebuild my carb or buy a rebuilt on line? Several people have told me to steer clear of online rebuilt carbs. It is a Rochester quadrajet. 350 Volvo Penta engine. What are decent prices for either way I go. This is all so new to me.

EasternOZ Loc: Kansas City Metro

Rocky from CA wrote:

Back to the 78 Bayliner Victoria I spoke of earlier. The engine bogs down at about half to 3/4 throttle. It picks back up when wide open but I still am missing speed. Should I rebuild my carb or buy a rebuilt on line? Several people have told me to steer clear of online rebuilt carbs. It is a Rochester quadrajet. 350 Volvo Penta engine. What are decent prices for either way I go. This is all so new to me.

Filters or fuel pump?

Rocky from CA Loc: Central California. Home base is Bakersfield

A manual and an electric pump. Bypassed the manual pump. Inline filters placed just in front of carb.

charlykilo Loc: Garden Valley Ca

Sounds like clogged jets. If you know what you are doing rebuild.
If not take it to someone that does.

Rocky from CA Loc: Central California. Home base is Bakersfield

Thanks for that. Do u recommend having mine rebuilt or buying a rebuilt and give them my core. Av couple guys have said buying rebuilt online is risky. What is av fair price to have mine rebuilt?

L.W. Loc: Spokane Valley, Washington

Get one from Summit racing on line they will treat you 100%. They may not be the cheapest but the best I have found. They are not just for racing stuff.

Rocky from CA Loc: Central California. Home base is Bakersfield

Thanks for that. I am googling them now. Stay safe out there.

Huntm22 Loc: Northern Utah. - West Haven

Summit racing is a top notch company!
Not cheap but you can bank on the work they do and they will stand behind their work. Pay a little more once and avoid further hassle. I found out the hard way by trying to save a little - caused lots of frustration and time. Went to Summit for a carb that my buddy recommended and its been great for 4 years now.

Huntm22 Loc: Northern Utah. - West Haven

Summit racing is a top notch company!
Not cheap but you can bank on the work they do and they will stand behind their work. Pay a little more once and avoid further hassle. I found out the hard way by trying to save a little - caused lots of frustration and time. Went to Summit for a carb that my buddy recommended and its been great for 4 years now.

fishrmans Loc: Waushara Cnty Wisconsin and Port Charlotte Fl

Doesn’t sound like a carb problem to me. The first thing I would do is pull your fuel line out of the tank and replace the check valve. Easy to do, not expensive and often the problem...

L.W. Loc: Spokane Valley, Washington

[quote=fishrmans]Doesn’t sound like a carb problem to me. The first thing I would do is pull your fuel line out of the tank and replace the check valve. Easy to do, not expensive and often the problem...[/quot. Fist thing I would do is change out distriburtor cap rotor plugs and wires. And go from there.

Rocky from CA Loc: Central California. Home base is Bakersfield

Thanks. I already did the tune up parts. Everything is replaced. Boat runs much better but still bogs be out while throttling up.

L.W. Loc: Spokane Valley, Washington

Did you check timing. 2-4 degrees can make a big difference.

Pickle Loc: Duplin co, NC

Check the timing sounds like it needs to be advanced a bit.

Egghead

Get some Sea Foam, and a couple bottles of Heat.add more than recommended.tgeb go out and run it for a couple hours. Then change the fuel filter. If that doesn't clean it up and fix the problem, then start changing parts. by the time a carb needs rebuilt there wore out.the only moving parts in a carb is the float, and the butter fly's.throttle assembly. The rods going thru the butterfly will leak air over time there's no fix for that. Try the Sea Foam n heat first.