I had an 89 T600, and I am almost positive it had an electric fuel pressure guage. I can't remember for sure though.
So you did this and gained fuel pressure? Just don't want to waste my time porting on things and removing things that might screw me later.. thanks- TroyAs long as your fuel system is sound and you dont have any lines sucking air you should not loose prime, but should that happen you will not have very good luck getting it primed.
I run an autometer electric guage for my fuel pressure, the T600s we had did not have pressure gauges in them, the had fuel restriction gauges.
Losing the primer will gain some flow, but no more pressure. Get the block off cover from Cat and drill it out to 1/2". If you increase pressure too much, the side cover (fuel manifold) on the pump will blow the gasket. 35-40 psi is all it needs anyway.I was reading a post by Tony that said to grind out the openings in the fuel filter base, and take off the hand pump, just wondering if anybody had any luck with that and will it work with just the stock draw pump, meaning no pusher electric pump? Also will I lose my prime if I take the hand pump off? Any body know if the late 80s kw had a electric fuel pressure gauge factory or mechanical, I seen one in the truck paper an 89 and thought about going that route for a gauge, seeing how I cant keep the isspro mechanical working right very long with a snubber
It's all new, pump, all fuel lines and fittings, I think that filter housing might be causing it or need to switch to a strainer on the secondary?Sounds like the pump is starting to get a little weak, or your lines are degrading.
It's after...Its not meant to gain you pressure, opening up tose holes with only let more volume thru and actually drop pressure, and if I remeber right the fuel pressure port on the filter base is before the jack pump so any increase in flow after that port will lower pressure.
Is that filter what they used to run on those motors back in the day? 10 micron seems a little big for the main filtration?I should also say, I put on the electric pump to "help" the stock pump. I bought a rebuilt transfer pump that did little better (30-35psi) than the one it replaced. They wouldnt give me a different one because it "was in spec," even tho the engine would not run properly. I was told that Cat pumps were good pushers but terrible suckers. I experimented with pump pressures on the electric pump and settled on 18 going to the transfer pump. This is how I end up with 50 or so after the 10 micron filter. I found that increasing pressure to 60 psi hurt mileage so I backed it off.