s4bill

I am reading through the threads and there is debate whether to remove this pump or leave it.

I am replacing the external pump and was trying to decide what to do.
The internal pump works. When I checked for power by closing the pump circuit (Minus the external pump which is off of the car) it started pumping what fuel had not drained from disconnecting the hose form the external pump.

I really dont want to shell out the money nor want to wait for a new internal pump to arrive unless it strongly suggested.

I was considering pulling the pump and replacing the rubber hose if it is broken. It appears to be a common problem. Is this worth the time? What is the best type of hose to use for this?

Is it best to leave it be and not crack the seal on the tank?

jej3

Pull the pump and replace it with the earlier strainer.

I'm not the one to speak about the merits of having the internal pump but I assure you having the internal pump hose fail and then its bits taking out the external fuel pump while you're on the road is more expensive than getting the correct strainer and replacement hose to the external fuel pump.

Just my $.02

Leon Speed

I left it alone and hoped for the best. Still works

If you want to replace it, use stuff like this: http://www.gates.com/brochure.cfm?br...ocation_id=541

Dave928S

I've just posted an in tank pump repair procedure as a separate thread so that its more easily searchable ... https://rennlist.com/forums/928-foru...ml#post9598050

Arnoud

Unless you are living and driving in a place where the temperature hits much over +40 Celsius = much over +104 Fahrenheit, my advise is as per jej3: pull the in-tank pump and replace it with the earlier strainer. Why: one less moving part to worry about.

That is what I did myself during November 2011 as preventive maintenance, after having read various threads about the in-tank fuel pump as well as Erkka Vilhunen reminding me about doing this (before the in-tank split fuel hose debris would/will inevitably works itself into the external fuel pump and taking that - or both - out) on more than one occasion.

In-tank strainer # is 928.201.081.04 (this includes the seal) and the fuel-house-to-pump # is 928.356.550.05 (and use two new chose clamps, not shown here):


And the dimensions of the in-tank strainer can be seen from here:


And when I pulled my in-tank pump (original and never been replaced), it's hose was indeed split: