![]() "Return from accumulator - if you have this third line, flow in it from the accumulator means your accumulator is leaking, so that could be causing some low pressure (which may be able to set turbo trouble light?). Of course, now the turbo caution light on the dash is on. I also just replaced the stock boost gauge with a vdo so I can get a precise measure of boost. I also have a new Mehle fuel filter that goes on the firewall, so I'll install that as well. Is that a generic product, or do I need to find one specific to this car? I am looking for a replacement for the accumulator/filter. So I'm sure I have a lot of debris in the accumulator/filter near the main pump. The small section of hose from the top of the in-tank pre-pump had disintegrated except where the ends connected to the pump and metal line. Fuel still running down from at or near main pump.ĭuring uninstall of old sending unit and pre-pump I tugged on existing return line pretty hard to pull up enough line for slack, so I'll be checking all lines in and out of main pump when I receive a replacement main pump next week. Started it up this morning and top of bung is dry, so leaks are lower down. The replacement sending unit did not have a plastic shield. That was the one that on the original unit had a plastic shield. ![]() I did cut a half inch off one hose so I could twist the small bit of remaining hose off the metal line. Pretty straightforward, as hose sizes and metal lines are all different sizes.īench tested pre-pump before install and it worked fine. I triple-checked hose connections on top of bung. you could bypass the fuel relay and force run the pumps and watch for accumulation on top of the bung nut. If no drip feelings, I wonder if the sender or return where it's brazed to the cap is broken slightly / cut into the line itself and is allowing leaks. Otherwise you should just have a cap.Ĭan you see if any of the hoses have fuel drip markings on their underside (or even feel for it?). Return from accumulator - if you have this third line, flow in it from the accumulator means your accumulator is leaking, so that could be causing some low pressure (which may be able to set turbo trouble light?). Is the clamp a proper fuel hose clamp or just a band clamp that cuts into the fuel line?ģ. I assume with a new sender you likely have a clamp for it rather than heat shrink original style. Return from distributor and such - On my B21FT it's a rubber outer on a shrink fit nylon inner - does not disconnect from the sender. When removing the hose to put on the new sender did you cut the hose in any way? I assume sender not scored because it's new (unless refurbished?)Ģ. ![]() Sender line to main pump - this is just rubber/fabric hose clamped on over a flared metal head. Since #2 is only possibility, then you have the following possible leak pointsġ. ![]() Pushing out around o-ring (unlikely as you'd have fuel pouring out of filler neck too since sender is highest point on tank If the fuel is accumulating on top of the bung, it's either:ġ. Depending on the accumulator type, if it has a leak it'll return to tank via that third tube. Your era of turbo I believe has in tank pump to main fuel pump to accumulator to fuel filter to distributor.
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