good call to check. It's 300 mOhm from alternator case to negative battery terminal, which is about as low as a DMM can reliably measure.thats all good but what about the back of the bracket to the head?
I learned the hard way about poor alternator case grounds and the pro m efi. Not saying this is your problem but dont overlook it.
When it's idling and i'm troubleshooting, I keep the PCV out and both vcs are open to atmosphere. When I drive it around the PCV is in (for oil splash reasons). It seems to make on difference whether the PCV is installed or not.also has the pcv been deleted and you have vents on both vcs?
Fuel pressure should be 39-40 with the vac line off. 38 is slightly low.Fuel pressure status - maybe someone can tell me if this behavior seems right:
fuel pressure with vacuum port disconnected: 36 psi (which I realize is low-> I did set it at 38 initially).
vacuum = 16 in hg measured from store bought analog gauge
fuel pressure with vacuum port connected: 28 psi
Got it, will do. Similar to what I ran but only for about 5 minutes.also I would like you to do another smoke test. this time remove the mass air meter and throttle body assembly and close off the hole with some painters tape. then pump the engine with smoke for about 15-20 mins. if you have a leaking, shifted intake gasket, you'll see it either coming out the top where the manifold meets or the bottom. if its coming out the bottom of the intake runner you will see smoke if you unseat the dizzy.
little confused. you blocked off the tb and the filled with smoke? how did the smoke reach the intake? maybe your wording is off. or im exhausted.Got it, will do. Similar to what I ran but only for about 5 minutes.
I made a plate with a gasket to block off the TB and pumped smoke through one of the NPT ports on the TB.
little confused. you blocked off the tb and the filled with smoke? how did the smoke reach the intake? maybe your wording is off. or im exhausted.
when i did mine, i have the 351 version, i cut a piece of plexiglass i had laying around, drilled a hole in the center with a grommet and bolted it to the intake. then i just pumped smoke into it.
choice 2. im exhausted.With the MAF removed, using a flat plate with a gasket, I blocked off the top of the TB, so smoke would not drift past the throttle plates out of the TB. I hooked up the smoke tester hose to the NPT fittings on the TB, which are downstream of the throttle plates, and in the same air volume as the intake. So the smoke was being pumped directly into the intake basically.
I’ll check the flatness with a straight edge- but my theory is the discoloration is the dye (or something else) in the gasket leeching into the aluminum surface from the water. The water is very clearly saturating the gasket paper. You can see the witness mark of the printoseal gasket material indicating there is good compression around the water ports.Strange how the coloration is along the intake surface on both sides. Have you checked its flatness? It appears, just from looking here, that the inside was torqued more than the ends were. If it is out of flat, it might leak down into the engine crank / cam area and be an intake leak. From past experience, I have always added a small bead of black RTV around the intake ports on the side that doesn't have the blue gasket material to help seal the intake. I did this because my car is boosted and did not want any chance of leaking. Might help, might not for you.