Branson 3520r power loss

[oldnslo]

Can I use an aftermarket fuel pump 12v should be universal if I'm correct

Just check to confirm that the replacement lift pump has similar flow rate and pressure. I believe the pressure is the biggest difference on models.

 

[Rewsi1967]

New pump, ran fine until warmed up, 1st gear low 2000 rpms full throttle

 

[Rewsi1967]

follow up , after replaced pump , still no power- finally got a chance to troubleshoot it, all pics was flow rate for 15seconds 1st pic is before filter , 2nd pic is going through filter and third is with no filter in it, problem I believe problem is filter, order new one same as original online be here Tuesday hope it fixes it, got 14 acres to mow.

 

[LouNY]

Some of those housing had an inlet screen built into them. You may have some garbage in the inlet of the housing.

 

[Zork]

I removed my OEM filter assembly on my 3520 - same as your picture- because the hose fitting was leaking and after examination I discovered that the hose fittings were only glued into the housing. So I replaced it with a clear inline auto type. Additionally, the OEM fuel pump has tight tolerances and my pump stopped due to a tiny spec of debris- so I installed the same clear inline auto filter before the pump and haven’t had a problem since.