my friend has this 455 that was rebuild about 5k ago. its under the hood of an 83' cutlass but its been sitting since last summer. we charged the battery and the starter just clicks. then we went to turn the motor by hand and it was surly siezed. yesterday we shot some oil into the spark plug holes and let it sit over night. today, it was still stuck. so we spent the afternoon pulling the heads. the insides of the cylinders look cool but she still wont budge, tho there was some light orange around the outside edge of the pistons. the walls were spotless though. im very confused... i was there the last time this car was running so i know for a fact he didnt blow it since then. the transmissin lost reverse and he parked it. could the trans be siezing the motor up? i was considering buying the motor (with the old beat car still attached ) but now im having my doubts...
Is the starter jamed?... Did you try turning by hand in N? I have never heard of a automatic doing such a thing, but there could be a first for me...
If the cylinders look good, even a light coat of rust...you should still be able to get it to turn over by hand. Especially after dropping oil into the cylinders. I wonder if something isn't in the oilpan or somewhere jamming it from moving. Will it move backwards, opposite rotation?
well i could hear the pinion pop out and then try to turn against the flywheel but i was just playing it by ear. you could be right
nah we couldnt get it to budge either way i was afraid we were actually going to break the crank bolt so i stuck 2 bolts into the balencer and then jamed a bar between them and tried that and still nothing. ending up bending the bolts.
Take the starter off, then try again to turn it over with a bar. If it's still a no go, fill the plug holes with PB Blaster and let it sit a day or two and try it again... but I'm thinking that the rings are rusted to the cylinder walls. Did it have a air cleaner on it? Sounds like water got into it somehow...
Pull the starter,put trans in neutral,try to turn the engine over.If its a no-go,rings frozen to bores or something broke.Con rod/cam locked up(unlikely)Put penetrating oil in the bores and let it soak.Then try turning the engine over while lightly rapping the pistons with a dead blow hammer or a soft mallet to knock the rust loose on the rings and break the bond.If that dont work,pull it out and take it apart,somethings bound up down low.Good luck.
hmm i'll have to tyr the dead blow the heads are already off and the cylinders have been saturated with fresh motor oil. might actually do the trick. i was suprised tho that the starter wouldnt have been able to break rusty rings loose.
i would expect there to be some rust on the visable parts of the cylinder walls though right? unless its all under the piston? we'll find out soon enough i guess.
Ah! The Olds monster 455. I had one in a '72 Hurst Olds. A set of headers and gears woke the (relatively low compression) 380 hp with 500 ft-lbs of torque engine up nicely. Sorry, back on topic.
i had a '76 455 in my cutlass. i think it was only rated at 180 hp but anthing more then feathering the throttle away from a light ment a lack of traction. i kinda been missing that feeling and would like to get the chevy motor out of my '85 olds. the 455 blew 2 years agho with almost 300k on it and the replacment was a 400ci sb chevy.
