Welcome to 2CarPros.
Here is a link that explains how to check for a bad head gasket. Also, I strongly recommend checking fuel pressure if you smell gas in the oil. I will provide that link too.
https://www.2carpros.com/articles/head-gasket-blown-test
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
My main purpose with the fuel pressure is the regulator. It may be causing the engine to get too much fuel.
Here are the manufacturer's specs for fuel pressure. Also, the attached pic shows how to attach the fuel pressure gauge. Most parts stores will lend you one if you don't have it.
FUEL PRESSURE:
Ignition "ON" Engine "OFF" .................... 40.5 to 47.0 psi
With Regulator Vacuum Applied [1] ..... 3.0 to 10.0 psi Less than Ignition "ON" Engine "OFF"
REMARKS:
[1] May be checked with either of the following methods.
With Pressure Regulator Vacuum Line Attached at normal idle speed.
Ignition "ON" Engine "OFF" with 10 Inches Of Vacuum Applied To The Pressure Regulator.
Let me know what you find, and when you remove the vacuum hose from the fuel pressure regulator, see if there is fuel in it.
Take care,
Joe
Image (Click to make bigger)
SPONSORED LINKS
Monday, June 10th, 2019 AT 7:56 PM