05-12-08, 13:29 GMT+10#1
thought i may as well give back a bit to the CT community after taking soo much (info-wise that is)
hope this help out a few people who want a fuel pressure gauge in-side the cabin but can't justify the 300 ish dollars for a 'proper' one.
firstly you need to source your electric oil pressure gauge + sender, i used a 2" Speco one (sender included, cost about 50-60 bucks from local auto store)
then you also need the follow: brass TEE piece, two ends 5/16 hose fitting to suit your VL fuel hose. the other end needs to be able to accomodate your sender. i used a brass TEE with just 3 threads in it, screwed the two hose fittings in two ends, then adapted the sender in the other one.
by adapted i mean, i could not find a thread to screw straight in (TEE thread and sender thread are different types) so i managed to screw the sender in a few turns, enough to hold it. then soldered it so it sealed etc. I ENDED UP SOLDERING THE OTHER FITTINGS ALSO BECAUSE THEY LEAKED, you dont have to i guess if yours dont leak, but being fuel, i would reccomend it.
for the actual sender-to-reducer thread i just used an engine sealant/silicon so it wouldn't leak.
then its just a matter of cutting your fuel rail inlet hose (AFTER DE-PRESSURING YOUR FUEL SYSTEM, SEARCH ON HERE ITS BEEN COVERED) and fitting in your TEE piece, wiring up the sender, (for negative/ground i soldered some wire onto the back of the tee piece and connected it to the chassis), run a signal wire from the sender back to the gauge, and the positive and negative for the gauge.
that should be it! i have most likely left something out, so please let me know if i have.
disregard where i installed my sender. it needs to be installed into the other fuel line, NOT the one going to the regulator....
enjoy
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