Couple questions. How do you know if it fuel in the radiator? The reason is, if you are getting raw fuel in the radiator then I suspect someone put it in there. It would not be coming through the head gasket as the fuel is sprayed into the cylinder as a fine mist so if there was enough fuel in the cylinder to find it in the coolant through the head gasket then I suspect the engine would not run.
The fact that you have good compression, I suspect the head gasket is okay. So we can confirm this by following this guide:
Then if this is not a head gasket issue, can you get a picture of what you are seeing in the coolant and we can try and identify it?
As for the bubbles, that is not uncommon to see some bubbles as long as there is no overheating and your head gasket tests ok as show above in the guide. So let's run through that guide and go from there. Thanks
Friday, December 18th, 2020 AT 6:23 PM