8/25/2023 0 Comments 305 with 350 camYou need to check and see if the 305 had a return fuel line from the fuel pump back to the fuel tank. No sparks available to the engine compartmentħ) I doubt that you would have an open contact voltage regulator on the new 350, pretty sure this was much older Most marine mechanical fuel pumps will be of a dual diaphragm configuration so that if one of the diaphragms break the excess will flow back into the carburetor throat.Ģ) The carb will have the float bowls vented back to the carb as well as compared to some of the old Holley's etc that would vent the bowl to atmosphereģ) The carb needs to have a flame arrestor on it to ensure that any backfire will not ignite fumes out side of the arrestorĤ) A marine starter will have an o-ring that seals the starter armature to ensure that fuel vapor cannot connect with the spark at the brushesĥ) The alternator will also have an extra o-ring and flame arrestor screen over the openings for the same reason.Ħ) The distributor also needs to be o-ringed (?) for the same reason. Click to expand.A marine engine has different components than an automotive engine and they mainly revolve around making the engine compartment safe if you have a small fuel leak that can create an environment for and explosion or fire.ġ) The 350 will more than likely have a mechanical fuel pump.
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