Question on rebuilt engine

[steveplym]

Looking for some ideas here from flathead owners.

The original flathead six in my car was rebuilt in '99 and put back in the car that summer. In 2000 on a long road trip it spun a rod bearing and damaged the crankshaft. The engine was pulled in 2001 and another flathead out of a '35 plymouth was put in the vehicle. Good engine, had not been rebuilt and is running fine right now. '35 plymouth owner decided to replace motor for a V8.

This engine does smoke a bit and I would like to put the original engine back in this vehicle someday. All parts were replaced in the original and rebuilt. This engine has been sitting on the engine stand for the last 5 years or so. It only had about 5k mi. on it when it broke down. Other than repair the crank and replace the bearing what else would I need to do? Engine was running fine when it was taken out, just had that knocking noise. Should I replace the oil pump and take it back apart to have the engine dipped and then reassemble?

I've been told by some I would need to do this as the metal shavings could have gotten into the oil passages. Would the oil pump have picked up these shavings? Would I need to replace the oil pump as well?

Thanks for any help in advance.

[Norm's Coupe]

If it was my engine and I knew everything else was ok, I'd just fix what's broke and call it a day. If and when it goes back in the car I would then change the oil every 500 miles for the first 1000 to 1500 miles. That should be enough to get any small metal particles out of there. If you don't put the engine back in the car right away after repairing it, I'd turn it by hand at least every 5 months or so to keep it lubed up a little.

[captden29]

metal shavings will be in the bottom of the pan. you can pull that and clean it, easy to do on the stand. not necessary to get carried away otherwise. change oil a few times like norm says, happy motoring. dennis

[greg g]

The 35 engine is a 201 cubic inch model, the outer block is the same but its only making about 80 HP. A 218 in 40's Plymouths made 87 so you lost some ponies in your swap. If the engine is on the stand it's pretty easy to pull the pan, and and get the crank out and checked. If they didn't hurt it too badly you might be able to get away with the same size bearing with no need to turn the crank. Or you might want to think about getting a 230 crank and getting some extra ponies. If yo keep the old one I would pay particular attention to the oil passages on that journal. Mkae sure they are good and clean so the problem doesn't reappear.

[steveplym]

The 35 engine is a 201 cubic inch model, the outer block is the same but its only making about 80 HP. A 218 in 40's Plymouths made 87 so you lost some ponies in your swap. If the engine is on the stand it's pretty easy to pull the pan, and and get the crank out and checked. If they didn't hurt it too badly you might be able to get away with the same size bearing with no need to turn the crank. Or you might want to think about getting a 230 crank and getting some extra ponies. If yo keep the old one I would pay particular attention to the oil passages on that journal. Mkae sure they are good and clean so the problem doesn't reappear.

Actually the crank is in pretty bad shape. Would have to have the crank repaired or replace it. Thanks for your help.

[Jim Saraceno]

So...... You want to trade that '35 engine for a '55 engine? It was running fine when I pulled it. I see your from Southern Il. I'm from St. Louis. If you have any interest, Email me and give you the full story.

[billwillard]

Always Keep A Magnet On Your Oil Plug.