What size is Mercury outboard fuel line?
Mercury/Mariner O/B Standard Fuel Line Assembly, 6′ x 3/8″
| Compatibility | 93806BLP7 |
|---|---|
| Inside Diameter | 3/8 Inch |
| Outside Diameter | 11/16 Inch |
| Maximum Continuous Length | 6 Foot |
| Type | Fuel Tank Lines |
What size is outboard motor fuel line?
Still allowing the proper amount of fuel to get to the engine without having any problems. Of course, the 3/8″ fuel line will work for any of the outboards. But most smaller outboards have fittings or quick connects on them that are set for a 5/16″ hose. It’s basically the standard hose for the smaller engines.
Are Mariner and Mercury outboards the same?
Mercury and mariner are the same company, both owned by the bruswick corp. Mariner was originally an australian licenced company that re-badged overseas engines and sold them locally under the ‘mariner’ brand name, mostly US made mercurys and a few Johnsons…
How do you check outboard fuel lines for leaks?
Insert the clear hose into the fuel line, prime up the engine, and start it up! Let it run for a little while and carefully watch the fuel passing through the clear hose. If you see a ton of air bubbles coming from the boat fuel tank side of the hose, then we are hot on the trail to solving this issue!
Are all outboard fuel lines the same?
The Difference Between the Two Sizes But there is a little more to it than that. The 5/16″ fuel line is actually perfect for smaller outboards. But most smaller outboards have fittings or quick connects on them that are set for a 5/16″ hose.
How do I calculate fuel line size?
Fuel pumps are sized to feed your system with enough fuel to optimize engine performance….Recommended Size, Based on Horsepower.
| Recommended Fuel Line Size (from the tank to the pump) | ||
|---|---|---|
| Engine Output | Size (inches) | Size (AN) |
| 350 hp or less | 5/16 in. | -5 |
| 350-450 hp | 3/8 in. | -6 |
| 450-650 hp | 1/2 in. | -8 |
What company makes Mariner outboards?
Mercury
At present, Mercury product brands include Mercury, Mercury Racing, MerCruiser, and Mariner outboards (sold outside the U.S.). Outboard sizes range from 2.5 horsepower (1.9 kW) to 600 horsepower (450 kW).
Are Mariner engines good?
The Mariner/ Mercury EFI engines are some of the best engines they ever made. Mercury has been making EFI engines for a long time.
Should primer bulb stay hard?
The bulb is NOT suppose to stay hard. It only delivers the fuel to the engine. Then the two check valves open and allow fuel to flow. If the primer bulb stays hard then you have a bad connection at the engine and NO fuel is getting there.
Why does my outboard stall when I give it gas?
This is because a rich fuel mixture is over-saturated with gas, causing ignition problems. Mixtures that have too much air and not enough fuel are lean and tend to reduce the amount of power available under load and can cause stalling.
How do you replace boat fuel lines?
Loosen the hose clamp and pull the line away from the motor. Remove the remaining hose clamp from the end of the fuel line. Slide the hose clamp onto the ends of the flexible hoses of the new fuel line. Push the new fuel line onto the hose fittings on the motor and tank.
How much horsepower will a 3/8 fuel line support?
A 3/8”id fuel line can easily support 600 HP given sufficient “pump head”! Given a big enough pump a 3/8” steel line could support 1000 HP. The simple way to know is to install an electronic fuel pressure gauge.