This Writeup is not mine, its From Z_Karma from
http://www.z31performance.com" onclick="window.open(this.href);return false; - he has kindly alowed me permission to post it here
I recently dug up some photos for a coworker who's son is installing a Walbro 255lph unit into his 87 Z31.
I figured I'd put them up here as well as i couldn't remember if i did before.
I purchased the most recent Walbro from Ebay for 84.99 shipped.
I reused the stock filter/strainer, and rubber isolator. The pump is clamped in place
with stainless steel wire i procured from a Chinese food container. The other method i've read
about was to just zip-tie it to the original support bracket. This method did not appeal to me.
My setup has been working reliably for 5 or so years. The only problem i've had is the factory
electrical connector failing, probably due to the increased draw of current from the Walbro.
http://www.z31performance.com/forum/vie ... 29&start=0" onclick="window.open(this.href);return false;
If you do this, i highly recommend upgrading the wiring to support the new pump. This can be found
by using the search feature.
The pump, wire-clamped in place, inside the foam isolator and, fitted snug inside the filter/strainer.
Mock up the assembly to determine the pump output hose length. This is important for keeping the intake
side of the pump from resting on the bottom of the Filter/Strainer and starving the pump. I trimmed enough
fuel injector hose to allow about 10mm of clearance for the pump intake. (The fuel hose supports the pump
vertically, the foam isolator supports it horizontally). I didn't use the bag style filter the pump came with.
Image
Finished Assembly:
As i said, this has been reliable for years now. I recently thought the pump failed, so i pulled it
to replace it with another. I found it to still be secure and, working fine, i was just low on gas
while parked on an incline and had a failing electrical connector (see link above).