There are other ways to tell as well. As mentioned earlier, "burning" a lot of coolant is a key indicator.
Blowing a hoard of white smoke from your exhaust and spark plugs stained with Toyota red coolant at firing end are also pretty sure signs your head gasket is blown.
By the time you are blowing lots of white smoke, you are near to causing serious damage to your engine. You should immediately stop driving it and fix the problem. This is also true for "burning" lots of coolant.
You can see the Toyota red coolant stains on the spark plug for up to a year before the head gasket really blows.
The test above can indicate a problem before it is obvious and I would absolutely do this before buying a used 80 series. If you pay a professional mechanic to fix your blown head gasket, you are looking at about $3000.
Blowing a hoard of white smoke from your exhaust and spark plugs stained with Toyota red coolant at firing end are also pretty sure signs your head gasket is blown.
By the time you are blowing lots of white smoke, you are near to causing serious damage to your engine. You should immediately stop driving it and fix the problem. This is also true for "burning" lots of coolant.
You can see the Toyota red coolant stains on the spark plug for up to a year before the head gasket really blows.
The test above can indicate a problem before it is obvious and I would absolutely do this before buying a used 80 series. If you pay a professional mechanic to fix your blown head gasket, you are looking at about $3000.
