Reply to thread

Message: [QUOTE="TARM, post: 423654, member: 578"] The 5/8" line is on the inlet side of the pump. I honestly do not understand why its used. The 3/8 is the restriction point. Either way once there is a prime it should be of none issue. I am beginning to wonder if something is up with the sending unit setup. Somehow its sucking in air or something is not allowing the prime. That could create the issue you are having. I hate the factory setup there. Rather than drilling and adding this and that IMO its better just to go with a new straight piece of tubing and bulkhead fittings just as the 5/8 kit does. All those clamps etc is just creating more points of failure IMO. Again the only time the pump would do any work would be the initial prime which is rare in a proper setup. OK so I did not realize it was the bowl delete with post pump filter. So you are running a pre and post filter. Got it. Here is the thing if everything was OK before the in-tank and pre filter mods unless it was just bad luck I doubt the issue is with the pump itself. Increasing the line size between pump and tank would not add any stress to the pump as a 3/8 line as its still not flowing any more than the 3/8 pickup. That is as long as its holding prime. Hence why I am wondering if something is up with the in-tank stuff. BTW how much fuel do you have in the tank? Check this. AT the pre pump filter (one between tank and pump) if you pull the line coming from the tank (5/8" hose) does fuel flow at a good rate from it? Hold it below the frame rail. If its not flowing well where its a small stream or dribbling out that's an issue. If that checks out ok hook it back up and pull the line off the pump inlet how does it flow. Those filters should not cause any appreciable restriction that would be super noticeable. Less than 1 psi. BTW I know it sucks having to pull the tank over and over. I have done my fair share. If you have access to another fuel pump its a easy check to see if thats the issue. [/QUOTE]