Well today I was offered a free engine and I went to go pick it up. It appears to be a Buick V6, I see some red paint on it and it's distributers up front. The guy who sold it to me told me it was in a Cutlass from 88, that he took out because the engine was making a ticking sound. The man also said that the owner of this motor before him had just rebuilt it. Looking at the engine, inside the valve cover the damages on The Rocker shaft. It's cracked right in half, when I asked him about this he said that maybe the timing was off or something it. Anyways I got it for free what do you guys think cause the rocker shaft to break.
Fatigue and a stress riser. If you look and the broken end do you see two different type surfaces? PS, You should have bought my block.
Lol.You're right I should have bought your block. Soon after I bought a Cadillac 472 for 350 bucks that ended up being a boat anchor. I did end up getting in the 430 for a hundred bucks. I'm away from the engine right now but I'll check to see if there are two different surfaces on the break. Thanks man
My first GN had about 3 cracked valve retainers so I replaced them all with Crane hardened. I had no idea why on a very low mileage engine. Maybe just fatigue and burnouts for this engine? Extra strength rocker shafts are available so maybe this is a weak point.
if a valve seized up really suddleny its possible, I would think the rocker would have the push rod punch through. what did the push rods look like.?
