mrvette
Phantom of the Opera
I would guess that over the years most of us have had the China wall problem with engine oil pissing all over the block/tranny, due to lousey gaskets and maybe even RTV not done quite perfect....
some years ago, back with the TPI on my SBC, I had a China wall leak in the rear, near the dizzy....it was getting worse...lovely, so much fun taking apart a TPI for a lousey oil leak....
so I got to thinking....first off, I took the other breather to the air induction, the one without the PCV valve, and temporarily put another PCV valve in there and t'd it off with the original to the intake vacuum....putting the crank case under whatever vacuum, never measured it....then took my stethoscope with the probe removed...listened for the vacuum suck, pinpointed the exact spot....
stopped the engine, cleaned off the area totally sanitary with good solvent and carb cleaner....started the engine, and sprayed some carb cleaner near the leak for a very few seconds....still under vacuum per above hookup....
gave it a few minits after shutdown to boil off the cleaners/solvents....
restarted the engine, still under vacuum...with the ability to shut down almost immediately.....pull the ignition wire from the HEI/dizzy or get a buddy to turn off the key....put some RTV on a finger, and apply to the air/oil leak passage, soon as it stops hissing, kill the engine, another swipe on the outside, and it's sealed tight as Egyptian tombs....the RTV having been sucked into the hole for full depth....
some time later for another reason I pulled it down, and found the fix worked really well with almost nothing inside the oil gallery.......
:friends:
I can be a lazy SOB, that's for sure....
:hi:
some years ago, back with the TPI on my SBC, I had a China wall leak in the rear, near the dizzy....it was getting worse...lovely, so much fun taking apart a TPI for a lousey oil leak....
so I got to thinking....first off, I took the other breather to the air induction, the one without the PCV valve, and temporarily put another PCV valve in there and t'd it off with the original to the intake vacuum....putting the crank case under whatever vacuum, never measured it....then took my stethoscope with the probe removed...listened for the vacuum suck, pinpointed the exact spot....
stopped the engine, cleaned off the area totally sanitary with good solvent and carb cleaner....started the engine, and sprayed some carb cleaner near the leak for a very few seconds....still under vacuum per above hookup....
gave it a few minits after shutdown to boil off the cleaners/solvents....
restarted the engine, still under vacuum...with the ability to shut down almost immediately.....pull the ignition wire from the HEI/dizzy or get a buddy to turn off the key....put some RTV on a finger, and apply to the air/oil leak passage, soon as it stops hissing, kill the engine, another swipe on the outside, and it's sealed tight as Egyptian tombs....the RTV having been sucked into the hole for full depth....
some time later for another reason I pulled it down, and found the fix worked really well with almost nothing inside the oil gallery.......
:friends:
I can be a lazy SOB, that's for sure....:hi:
