by MobileAudio219 » Fri Aug 20, 2010 6:34 pm
The compression would be lower on that cylinder. Sometimes it'll blow between two cylinders, which makes both those cylinders low on compression.
Sometimes it'll blow at a water jacket and leak coolant externally, which doesn't effect compression at all. Which is where the coolant pressure check comes in handy. But even if it doesn't hold pressure, it doesn't really mean a head/head gasket, it could be anywhere in cooling system.
Sometimes it'll blow between the water jacket and cylinder, which makes the pretty bubbles.
Sometimes it'll have poor compression due to bad rings. Add a little oil down that cylinder and if the compression increases, if it does, it's the rings. If it doesn't, it's a blown head gasket or bad valve or something in the top end.
If you need any help with it you can call me. If you don't have my number you can pm me and I'll give it to ya.
The compression would be lower on that cylinder. Sometimes it'll blow between two cylinders, which makes both those cylinders low on compression.
Sometimes it'll blow at a water jacket and leak coolant externally, which doesn't effect compression at all. Which is where the coolant pressure check comes in handy. But even if it doesn't hold pressure, it doesn't really mean a head/head gasket, it could be anywhere in cooling system.
Sometimes it'll blow between the water jacket and cylinder, which makes the pretty bubbles.
Sometimes it'll have poor compression due to bad rings. Add a little oil down that cylinder and if the compression increases, if it does, it's the rings. If it doesn't, it's a blown head gasket or bad valve or something in the top end.
If you need any help with it you can call me. If you don't have my number you can pm me and I'll give it to ya.