dieselolds
Well-Known Member
With a hydroboost in the system the orifice size should be a larger size for added flow and set for a line pressure around 1200-1400 psi max. I had this issue with mine a while back finding that the one I had was the wrong one plus ordering a new pump came with the smaller size. I ended up doing a load of research finding out how to attempt to fix it. ended up drilling out the orifice to iirc a 11/32. Don't quote me on that size, I will have to do some digging around to find where I got the info. these saginaw pumps are rated for 1 - 3 gpm if im not mistaken, the size orifice is what sets the flow rate. pressure is adjusted my the valve and spring, but you shouldn't have to mess with that.
I appreciate the heads up on that.It could save me a load of grief in the long run.I might attempt tomorrow morning in getting pump and steering box off.I also have a new Hayden fan clutch to go on it as well since I’m taking the fan shroud,etc off.I was going to get the 4 bolt fan clutch and duramax upgraded fan but I said the heck with it and just buy the 6 bolt fan clutch the 96 trucks came with.I don’t tow or haul anything with it.It’s just basically a coffee run truck and pick up a few things here and there,etc.