88F350idi
Registered User
Hey all,
i've got an 88 with a 94 7.3 idi non turbo and i added a factory turbo a while ago. the turbo died about a month ago (which wasn't a big surprise). the shaft bent and was pretty screwed. I had a good spare in working condition that i took in for a rebuild and balancing. while the work was getting done on the turbo i took the opportunity to replace my head gaskets and head bolts and also did a smf conversion. with the new turbo bolted on my, oil pressure is significantly lower than before. at hot idle i'm seeing 9-10 psi. I have an autometer mechanical gauge. i tried another mechanical gauge with the same results. tried swapping out the psd oil filter for the smaller idi filter. same. I found specs everywhere that say pressure at 3300 rpm should be 40-70 psi and i'm not seeing that when it's revved up. also when i start the engine the pressure builds very slowly instead of shooting up like before. highway at 105 km/h (about 65 mph) pressure is around 20-25 psi. I'm going to try swapping oil pump and see how it goes. Any ideas would be great...
i've got an 88 with a 94 7.3 idi non turbo and i added a factory turbo a while ago. the turbo died about a month ago (which wasn't a big surprise). the shaft bent and was pretty screwed. I had a good spare in working condition that i took in for a rebuild and balancing. while the work was getting done on the turbo i took the opportunity to replace my head gaskets and head bolts and also did a smf conversion. with the new turbo bolted on my, oil pressure is significantly lower than before. at hot idle i'm seeing 9-10 psi. I have an autometer mechanical gauge. i tried another mechanical gauge with the same results. tried swapping out the psd oil filter for the smaller idi filter. same. I found specs everywhere that say pressure at 3300 rpm should be 40-70 psi and i'm not seeing that when it's revved up. also when i start the engine the pressure builds very slowly instead of shooting up like before. highway at 105 km/h (about 65 mph) pressure is around 20-25 psi. I'm going to try swapping oil pump and see how it goes. Any ideas would be great...