Has anyone ever heard of a siezed 4G63? (PICS!)
 

A friend recenty bought a Galant VR4 and on the way home the engine siezed (sp?) I have never heard of this, only spun bearings or bent valves. (I'm more familiar with the 6G72) Anyone know what could have happend?

Re: Has anyone ever heard of a siezed 4G63?
 

no oil? timing belt snap? balance shaft seize?

Re: Has anyone ever heard of a siezed 4G63?
 

Spun bearings can make an engine seize.

Re: Has anyone ever heard of a siezed 4G63?
 

balancing shaft belt broke, timing belt started to shred, oil pump and balancing shaft were very hard to turn, oil looked like it had metal in it, and i think the head gasket poped :eek:

Re: Has anyone ever heard of a siezed 4G63?
 

Yah the balance shaft was pretty hard to move until broken free. The oil pump turns but was hard until broken free also. The crank DOES NOT move. We tried to turn it and hit a piston down and NOTHING. Today we are pulling the pan and hopefully will get all of our questions answerd.

Re: Has anyone ever heard of a siezed 4G63?
 

I saw the bearings, and crank last night. HOLY SHIT never seen anything like it before. Pics should be up soon.

Re: Has anyone ever heard of a siezed 4G63?
 

Heres a pic i took with my phone, I'm having a hard time uploading them all together so i have to go one by one.

Re: Has anyone ever heard of a siezed 4G63?
 

pic 2, this is the other half of the bearing

Re: Has anyone ever heard of a siezed 4G63?
 

pic three

Re: Has anyone ever heard of a siezed 4G63?
 

this was a pic of the top of the same piston that had the shredded bearing, the thing is that there was no broken valves, but you can clearly see that its a broken off valve that hit it.

Re: Has anyone ever heard of a siezed 4G63?
 

Mmmmm, carnage!

Re: Has anyone ever heard of a siezed 4G63?
 

I still want to take off the front cover, curious to see if the oil pump is damaged.
also the oil filter needs an autopsy.

Re: Has anyone ever heard of a siezed 4G63?
 

There isn't really much point. The engine was definitely oil starved. The filter will be full of crap and the oil pump bearings will probably be in rough shape.

Re: Has anyone ever heard of a siezed 4G63?
 

Yeah, but why would that happen at the same time as the balance shaft belt snapped? And what's an oil pump bearing?

Re: Has anyone ever heard of a siezed 4G63?
 

I guess technically it is the rear balance shaft bearing, but drives the oil pump. If the engine seizes I could see it snapping the BS belt.

Re: Has anyone ever heard of a siezed 4G63?
 

Thats the thing thats wierd about this... The car overheated, the BS belt broke shreading half the timing belt and the bearing siezed to the crankshaft. All "at the same time"(not really at the same time but close).

Re: Has anyone ever heard of a siezed 4G63?
 

JET explained himself, but there are bearings that the oil pump shaft rides on in the front case.

Re: Has anyone ever heard of a siezed 4G63?
 

I'm guessing shit started to sieze, caused stress on the balance shaft belt and that's what caused it to snap.

Re: Has anyone ever heard of a siezed 4G63?
 

another strange thing, none of the valves were visibly bent from this cylinder, its almost as if this piston was reused on a previous rebuild, could the car even run correctly (for a few thousand miles) if that were the case?