Instead of hi-jacking the hyd roller cam thread again.....thought I would start a new one.
For those of you who have followed in the few other threads I have posted in..........or if you haven't.... here is what has happened to this point...
Junkyard SG1 engine built....bored .030.....stock rods...stock rolled fillet turbo crank....std/std ...crank removed straight out of the junkyard engine ...looked great....just polished it...high vol melling oil pump.....poor boy factory hyd roller conversion...218/218 cam....2 center steel main caps...line bored....roller master timing set...reduced center distance for line bore...
Engine was installed and cranked for the first time a few weeks ago....cold oil pressure was 50 psi +...... sounded great....but once the engine was hot...idle oil pressure would drop near 0.... rev the engine... it would go to 40-50 psi fairly easy...
After several posts in several threads....decided to pull the engine and check clearances on the rods and mains....(I wasn't there when the engine was actually assembled) thought I found the issue when the mains checked... .003, .003, .003, and .0035. The rods averaged about .0025. I got some coated .001 main bearings... and some coated .001 rod bearings and some coated std rod bearings. I mixed and matched the two sets of rod bearings to get rod clearances between .0015 and .002. The mains checked out at .0015, .0015, .0015, and .002.
Re primed the engine and reinstalled it a week ago... fired it up.....let it get hot..drove it about 30 miles....checked oil pressure idling.... same thing... near 0 idling.... would come up when you revv'd the engine some....
So... got a major leak or hemmorage somewhere. So I pulled the engine again tonight....
Will prime it up tomorrow night with the intake and valve covers off... to see if I can see where all the oil is going....
I will pull oil pan and somehow rig pickup in oil and see what it looks like coming off bearings....definately going to find this problem before it goes back in this go round.
On a interesting note... I pulled the engine in just under 2 hours... LOL... didn't really want to get good at that... but that's how it goes I guess.....
For those of you who have followed in the few other threads I have posted in..........or if you haven't.... here is what has happened to this point...
Junkyard SG1 engine built....bored .030.....stock rods...stock rolled fillet turbo crank....std/std ...crank removed straight out of the junkyard engine ...looked great....just polished it...high vol melling oil pump.....poor boy factory hyd roller conversion...218/218 cam....2 center steel main caps...line bored....roller master timing set...reduced center distance for line bore...
Engine was installed and cranked for the first time a few weeks ago....cold oil pressure was 50 psi +...... sounded great....but once the engine was hot...idle oil pressure would drop near 0.... rev the engine... it would go to 40-50 psi fairly easy...
After several posts in several threads....decided to pull the engine and check clearances on the rods and mains....(I wasn't there when the engine was actually assembled) thought I found the issue when the mains checked... .003, .003, .003, and .0035. The rods averaged about .0025. I got some coated .001 main bearings... and some coated .001 rod bearings and some coated std rod bearings. I mixed and matched the two sets of rod bearings to get rod clearances between .0015 and .002. The mains checked out at .0015, .0015, .0015, and .002.
Re primed the engine and reinstalled it a week ago... fired it up.....let it get hot..drove it about 30 miles....checked oil pressure idling.... same thing... near 0 idling.... would come up when you revv'd the engine some....
So... got a major leak or hemmorage somewhere. So I pulled the engine again tonight....
Will prime it up tomorrow night with the intake and valve covers off... to see if I can see where all the oil is going....
I will pull oil pan and somehow rig pickup in oil and see what it looks like coming off bearings....definately going to find this problem before it goes back in this go round.
On a interesting note... I pulled the engine in just under 2 hours... LOL... didn't really want to get good at that... but that's how it goes I guess.....