LedRush

In order to bypass the mech pump, do you loop the inlet and outlet with hose? (after rerouting the fuel line)

Interesting sounding gizmo. After reading 60FlatTop's post, I noticed my modern-day EFI vehicle fires immediately after pressing the start button. Even if the car sits for a few days. I doubt the oil has a chance to begin circulation. Today's problem is nearly opposite of yesterday's - starting has become too efficient. Now I'll want to add delay for a cold start. Otherwise, the off-idle restart has to be quick.

Thanks for all the useful tips and info. I did find a couple of issues with the new sending unit. I'll share them as an FYI. Note that it is a recently-purchased, correct for 1955 Buick unit. It's not a universal. 1) The float arm needed tweaking in two directions - one to get the E..F aspect accurate; the other to bend the bobber away from the intake tube - there was some rubbing/interference. 2) The float bobber was not sufficiently buoyant. I tested with an open tank so I could see the arm swing as fluid was poured in. The bobber was unable to swing the float arm up, eventually getting completely covered, laying on the tank bottom. On this unit, just a hair past empty, there is a no-man's-land zone where the arm doesn't swing smoothly. It physically feels like the resistor has something like a "high spot" there. The bobber was unable to overcome this zone. The dash gauge read empty/near empty constantly until I replaced the new bobber with the old unit's piece and now it works properly. The new bobber appears to be a plastic-based material (definitely different from the original material), whereas, the original looks to be of brass. Now that I have the unit and tank ready for reinstall, I can focus on an elec pump. Thanks again.

I have dropped the fuel tank in my 1955 Buick Series 40 in order to replace the sending unit. While it's out, I am seriously considering installing a small elec pump and filter (as a secondary pump) towards the rear of the vehicle. The on-block mechanical pump will remain as primary. Those who have installed one, where did you decide to locate it? Frame? Trunk floor? Other? I can drill a mounting hole or two but where? Ideally, I avoid drilling altogether and use an existing hole/slot in the frame/chassis. Examining the underside today, I saw a 1.5 inch narrow-oval shaped cutout on the driver's side of the rear frame rail next to the original fuel line at the point the fuel line bends towards the front of the car (and then continues along the frame rail). About where the frame rail and a rear crossmember meet (near the driver's side rear coil spring). The cutout looked factory - as best as I can tell. Clearance looks good. That is, a small pump, filter, and lines should easily fit. Has anyone tried this? Or, more importantly, has anyone ruled out this location? Thanks in advance.

Gotcha. Thanks for the heads up. I'll brush up on what's needed and then scour the regional parts yards with a lot of hope.

Thanks for the info. There are two holes on the bottom of the dash near the steering column which have been repurposed. One is now an elec fuel pump switch and the other is the starter button (accel pedal depress feature has been removed). I'll look at moving one of those to restore the odo reset.

My Special has the optional redliner speedometer. When I bought the car, the speedometer was broken and I have since had it repaired. From what I have learned, there should be a way to reset the trip odo but my car is apparently missing some part(s). I recently acquired a trip odometer reset cable that fits well into the port on the rear of the speedo housing. However, I have no idea how or where to mount the button end of the the reset cable. Is there a dash receptacle? Does anyone know how to reset the Series 40 optional trip odo? If it is via a cable, where to mount it on the dash? Is the optional redliner Series 40 speedo unit the same as the Series 60 speedo?

AZ

I'm interested in the intake manifold and carb. Do you have any other related components (linkage, fuel line)?