The K75 quit at the end of my driveway 2 weeks ago, luckily I was on the way home. I found the 20 year old Bosch fuel pump was toast. I replaced it with the Airtex model recommended on the forum including the rubber gas hose surround for insulation. I checked the tank a week into the replacement and found that the rubber had swollen and gotten soft, replace it with another gas tank hose line from a different parts store. One week later same problem, swollen rubber from gas intrusion. I pulled it one more time, removed the rubber completely and made two aluminum straps in a soft z shape that I riveted to the retaining ring and attached to the pump with a radiator clamp. The pumps sits in the middle of the retaining ring and is flush with the bottom of the tank with the filter installed.
I thought this might be of use to someone who like me could not find any suitable rubber for the pump insulator. Sorry no pic's as I did not think to take any before I re-installed the pump.

Some fuel hose is not meant to be imersed in fuel just have it inside.

I figured that out after 2 times, even though both stores assured me that immersion would be ok. So much for local parts store knowledge.

yep chris ...the sae 30r10 is suposed to be the good one for imersion in fuel in fact this one (if you can find it ) is good for ethanol added fuel as well ...a real good sugestion for forard thinking ....eventually we will all get the same stuff ...its inevitable ....

As Charlie said...SAE30R10 (stamped along the hose, along with a pressure rating) is the immersion stuff. SAE30R8 is the fuel injection hose used outside the tank.