Buy a hoe with a new egine after thrown rod??

[bizuser]

So, my father has a hoe he wants to sell. It's an `04 with 75K highway miles and since it was a company car, he has all the records and kept it very well.

He has purchased a new Titan (not a bad truck) and has had the hoe in the driveway for a month or two. He went to start it for the sake of starting it and BAM, he threw a rod right out of the bottom of the block. He has had the dealership replace the block and all pertinent parts under warranty. He has not been able to sell it for kbb private party, so he is giving it to me for a couple thoughsand below kbb. It runs great now...BUT...

My question is, generally speaking, would I be an idiot to purchase this?

 

[JKmotorsports]

I'd say if it is something you are looking into, go for it. You can't go wrong if you get a good deal and the engine is practically new and everything else is mechanically sound.

 

[bizuser]

That's what I was thinking. Others I've talked to say...whooah dude, there has got be something else wrong with it if it threw a rod.

I don't know enough about engines to know what can cause this to happen.

Thanks for the reply.

 

[tast101]

I would say go for it, Your buying it from your father, you know how he drove it how he took care of it, if he drove it). And it was replaced under warranty and still has the warranty go for it.

 

[Chads93GT]

A thrown rod generally is a result of failed bearings, failed oil pump, slack in the rods from the bearings being worn, etc. our engines run by throwing the rods and pistons, straight up, then straight down, over time this wears out the bearings, and makes them egg shaped. Tolerances grow, more slapping occures till there is a failure. The result is the crank/rods failing and all hell breaking loose. This causes the short block to be ruined.

when you replace the short block entirely, you get a new block, crank, rods, pistons, bearings, cam, timing chain, oil pump. There isn't anything to worry about, as you have a new engine, less the heads. throwing rods out of the bottom of the block doesnt have anything to do with the heads.

 

[bizuser]

Wow, that was more infomation than I was expecting Chas93GT and I certainly appreciate it!! That has certainly made me more comfortable with this purchase. I was worried the block would be the only thing they replaced. I guess I should follow up to make sure though.

Thank you to everyone else as well!!!

 

[Chads93GT]

haha no. When rods go, it tears EVERYTHING up dude. Sh!t hits the fan. heads usually get damaged when a valve gets dropped, which happens when there is a lock/retainer failure, which in result the piston beats the hell out of the valve inside the cylinder chamber, which usually results in........well.......a ruined head, piston, and a cylinder sleeve that needs to be changed .

 

[JKmotorsports]

That's what I was thinking. Others I've talked to say...whooah dude, there has got be something else wrong with it if it threw a rod.

I don't know enough about engines to know what can cause this to happen.

Thanks for the reply.

Nothing outside of the engine will cause a thrown rod. Only possible causes would be the rod itself or the rod bolts. Could of been just a weak/defective rod or bolt(s), loose rod bolt, or a lot of high rpm causing the rod to prematurely weaken, or from bad bearings with loose tolerances.