cracked block on FJ (1 Viewer)

[capt bligh]

My buddies FJ has been parked since October having only been started and ran once since then. I helped get it running when oil went everywhere. After pulling the starter found a huge gap behind the starter right in front of the fly wheel. Looks to me like something struck the casting from the inside. Anyone ever seen anything like this?

 

[BMThiker]

Not that particular type of failure, but I did bash my upper oil pan when a front diff mount cracked. It's fixable, but your cause of failure is still concerning.

 

[fjc-man]

Ahh, looks like it threw a rod. Is it miss firing by chance? Like, running on 5 cylinders?

 

[capt bligh]

Ahh, looks like it threw a rod. Is it miss firing by chance? Like, running on 5 cylinders?

We didn't have it running long enough to be sure. Sounded a little odd when turning over. Also when we manually turned the motor over a few times we hit a spot where we could no longer turn the crank. We back turned it then went at it with the starter.

 

[BMThiker]

Oof

 

[chbrow10]

If you pull the spark plugs you should be able to somewhat easily spin the engine over by hand. if you are hitting a hard spot, especially if it is in the same "location" turning the engine in both directions, then you have a mechanical interference in there. Perhaps a borescope through the hole?

I have heard that if the cylinder walls are scored, you cannot rebuild a 1GR due to the non-removable steel cylinder sleeve's inability to be bored.

 

[capt bligh]

Thanks for the input everyone. We will be back under the hood today. I was concerned that it may have been a hydro lock that blew through the cylinder. But with steel sleeves it is very doubtful. I should add that there is only 60k miles on this engine, it is also supercharged, chipped etc...

 

[capt bligh]

Update. Broken rod punched through the block. Not sure how this would happen on a 60,000 mile Toyota motor. However the owners wife mentioned it ran fine while she let it idle for 2 hours to charge the battery

 

[chbrow10]

Sorry for your friends loss...

 

[NyNomad]

looks like a solid excuse for an LS swap