Engine Siezed, What to do?

[TGD]

I was going to also suggest spray welding as a way of bringing the crank journals back to standard specs. Have to find a good machine shop that specializes in engine rebuilds to get it done properly. Then you can use standard rods and bearings and yes I would replace the rods, they may have stretched or deformed some when it seized. If the cylinders are scored badly from a broken ring, replace the liners. If the rings did not break, then cleaning any aluminum off with a hone (from melted pistons) from the liners will likely work and remain within factory tolerance. Pistons should be checked closely or replaced and any that had a broken ring will have to be replaced.
A good machine shop specializing in rebuilding engines like I mentioned above can handle all this for a reasonable cost (as compared to a new or rebuilt engine), but it is still a costly mistake.

Camshaft and bearings are likely to be ok as the crank and pistons will seize before the camshaft runs dry enough to harm something.


I would not run it any more as you could throw a rod and damage the block. Have a flatbed wrecker bring it to the shop if you or someone you know does not have a trailer and a way to put it on the trailer.

 

[PILOON]

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Quote:
Originally Posted by ToadHill
Fond a good engine rebuilder and have the crank spray welded and re-machined to factory tolerances.

I've never heard of this, it sounds interesting I may have to do a google search just to see what is all about.
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Another process used is to grind under/over and plate back to standard.
Very commonly done on aircraft cylinders and I think they do cranks as well.

When a cylinder is plated to std, then non chrome rings must be used.

 

[Reg]

My guesses;
If it started up and ran once there was oil and a new drain plug a) camshaft and valve gear are at least functional.
If it has reasonable power b) Pistons are probably OK.

I would drop the pan and clean it out ANYWAY !

If it doesn't consume oil & if you don't have new/different colored smoke at new/different times - just stick with scheduled maintenance, you're probably good.

EDIT;
Well, in view of the funds/ca$h flow situation.....
It might not do any MORE damage to run it until you have funds.
I'm not suggesting false economy, but sometimes delaying an engine re-build is exactly the right thing to do.
Sometimes there isn't a choice, it is the ONLY thing you can do.
;END EDIT

 

[banjodunn]

G'day sorry to hear your plight I once had this happen on my dads 786 inter at 2600hrs (sump plug was not left loose disgruntled neighbor not happy with us getting lease on groundbut that is another story) with that I split the tractor and pulled the crank had it ground, new bearings and put it all back together and away it went 7845hrs and has still not had the head off (getting closer though starting to use a little oil). I would be doing the same as I did and have a good look under the pistons at the same time if the bores look ok leave the head on best of luck with it


Jon
24 years heavy diesel mech

 

[TrippleT]

As I have not read all the replies, I am going to throw something out here to check. Drop the pan pull the cap off the farthest main bearing from the oil pump, and maybe the center as well, IF the bearings look good, I would check the rods as well. If they are good then you may have gotten lucky, I HOPE.
Also look for scores and smearing on the crankshaft. You may want to look at all the bearings and have a good mechanic take a look as well. Sometimes it will amaze you at what you can get away with, and sometimes you will be amazed that it would not work. Good luck at any rate. IF, the crank and rod bearings are all right. I think I would not worry about the cylinders for a while and run it and see. Of course, if money is no object, take it to a good shop or dealer.

 

[gordyy]

do some checking
years ago when I was dumb enough to do some drag racing, we built a motor major bucks going to go for the glory that year!
three guys working on it all the while got it in hooked just enough stuff up to start it and give it a little fuel and maybe spin off some rubber,
droped the clutch gave it a lil fuel lots of squeeling then bang smoke weird noises ugly ugly smells pulled the dipstick nobody put in oil!!!!!
pulled the motor dropped the pan, stripped the crank long story short all we had to do was replace the rods and mains, it ended up being the best motor I ever had and we did hit glory that year (now I just wish I would have bought my own trophy would have been thousands cheaper)

keep your hopes up maybe you can get lucky