Re: '55 engine back to life! Mostly worked...

Posted by jfrom@kanter On 2018/7/24 9:16:08

If pressure was low before rebuild you should have diagnosed cause upon disassembly, did not see any conclusions. Currently you have low oil pressure, what was reading at 1500 rpm. Did you check with mechanical gauge??


In our shop we do not take the precautions you have and never had any engine failures/problems. We lube all engine parts with an oil/STP mixture as assembled, tappets/cam brushed with cam break-in fluid, just use regular oil for first 30 minutes then drain and replace examining used oil for metal particles, fuel system not flushed unless car has been sitting for years or evidence of sediment, carb not primed.


Engine cranked with starter and ususally fires up within 3-4 revolutions. After 10-15 seconds the lifters are full and engine runs silently. IF THERE IS ANY CONSTANT OR LOUD/NOTICEABLE NOISE THE ENGINE IS SHUT DOWN AND DIAGNOSED.



The noise you have is an indication of a problem, it may be the torque converter nuts are loose on the front side of the flywheel, elusive sound in the area you describe. But it may be lifter to cam noise, did you check that lifters rotate freely in lifter bores, this causes almost immediate lifter/cam failure.

Thanks
James From
Kanter Auto Product