Drivers side fuel pump & plumbing question

[LateFan]

1986 ES. Was taking a look at all this plumbing in front of the LR tire. On our eta, I believe we have a lift pump in the tank, which we replaced, and this pump. Other stuff looks to be damping unit, absorber, and a protective case around the pump(?). Some of it NLA. Not sure what all these pieces do, and I can't remember changing out these hoses when we replaced everything else on the engine. Seems like at least I should change those. Is it rare for this pump to fail? The in-tank went at 185k-ish.

Where does the rubber hose go that's disappearing up past the tank flange? And there's another line coming down into the damping unit?

[LateFan]

Bump.... What does an absorber and a damping unit do?

[jbontke]

Both the unit before and after are injector dampening units. People have removed them with no issues. The larger line (13mm) comes down off the tank from the lift pump. I think the other smaller line is the fuel vapor, where the fuel return line is on the other side of the car. I could have this reversed.

[15Michaeljoseph]

It also looks like you're missing the fuel filter? Or is it in the engine bay on E's? Check out realoem for a better idea of what everything is Sent from my moto g(6) using Tapatalk

[LateFan]

Yep, fuel filter on the drivers side under the booster.

Thanks jbontke. So there's a surge or pulse every time an injector shuts off and these deal with the hydraulic "hammer," to use a plumbing term?