triple 300s

Anyone have any pointers to what I am going to need/expect for this job?

I want to install a few mechanical gauges at my throttle bodies on my 575s to check what my fuel pressure really sits at. I don't trust the electric senders. Any certain fittings I need? certain gauges that people like? etc...

Any help is appreciated, thanks in advance.

BillR

Like this?

LOONG time ago - this is going off memory.

You need a male to 2 female 1/8" tee and a small 1 1/2" FP gauge - I think I got mine from Jegs
http://www.jegs.com/i/JEGS-Performan...rentProductId=
http://www.jegs.com/i/JEGS+Performan...41364/10002/-1

Unscrew FP switch from fuel line elbow. Screw in tee and gauge on one side and switch on other. Don't think it took 15 minutes and worked well!

triple 300s

If I completely unhooked the electric sender and put my mechanical gauge in its place will it throw an alarm? Thanks for the pictures!

BillR

I think so, but not sure.

4bus

iTrader: (4)

No alarm, I can tell you this because my port side was not working at one point.

I like the piggy back set up above. Keep them both and use the mechanical to verify. Be careful removing the stock 90 degree fitting, it is brass and breaks easy.

I got new 90's local, they were even blue

xwing

The T fitting BillR posted is best way to do it, so you don't have to remove the electrical sender.
The injection computer should be monitoring fuel pressure, and should throw a code. If pressure was low, this leans out motor and destroys it, so it's a critical parameter.

Triple300s, you don't have to install these to sell the boat is there a problem you're concerned with?

JaayTeee

No, the sender is just for the gauge.