did timing chain now blown head gasket

[a&a auto]

has this happened to anyone else i had the timing chain done and it was cool for like a week or two and then it started making noise again so i went and did the chain my self after i was done i couldnt get it to start it would turn over but not start after trying a bunch of times i pulled the valve cover off and found coolent in the head does this make sence. did anyone else have this problem before or any ideas what what cause the gasket to go out like that ? do these things crack heads? oh yea sorry its a ka24e in a 90 240

[yellow_jacket]

If you did the head gasket and all of a sudden got coolant in the oil it is probably something you did. More than likely the front cover isn't sealed correctly or it is cracked.

Quite a few people have had problems with the chain rubbing all the way through the front cover on the SOHC motors.

[a&a auto]

no i didnt do the head gasket yet i am just wondering if when i did the chain if there was something i might have done wrong that would have made the head gasket blow before i could get it to start

[DAEDALUS]

That's an interesting one. So there was coolant puddling on top of the head, where the cams are? I don't see how a blown head gasket would cause that...maybe a cracked block if it's a vertical crack. Any signs of damage to the outside of the valve cover? Shops sometimes hit it with a rubber mallet to break the RTV seal, and I suppose that could cause a crack, but man, cracks through a head require a lot of energy to form. Check the plugs and cylinders for coolant. Then do a compression check on all cylinders and on the cooling system. If the cylinders' compression is good, then the car should still run, unless the crack is so bad that the cylinders are drowning. Check the spark to all plugs.

[Open4Cycle]

If your chain guide was broken when you replaced the chain, then more than likely your chain rubbed through the waterpump passage in the timing cover. Very common on the KA24E. If anyone has timing chain noise with a KA24E pull the cover ASAP and atleast replace the giudes!

[sohc240]

I actually have the same problem. I don't know how you did your timing chain, but when I did mine I just pulled the front cover off and the oil pan. This is a lot easier, but when you put the cover back on with out removing the head you can pinch the front part of the head gasket and that can cause a leak. Now I have to do the head gasket! Hope this helps.

[yellow_jacket]

RTV will fix your problem. Unless you really want to do the head.