120-150 psi as per Haynes manual.
I have a 1996 Mercury 4 cylinder 40hp with 125 Psi across all 4 cylinders. I also have a mid 80s Mariner/ Yamaha 40hp 2 cylinder with 123 Psi both cylinders. I'm not sure what factory specs are, but maybe this would help.
35 to 40 psi
a little WD 40 should do the trick
The exact cost to repair a blown head gasket on a Jeep Cherokee varies. It should run between 20 and 40 dollars.
40
Depends on your skills as a mechanic, your tools, and the problem. Some of them you have to Chad in all honesty NO. well you can if you want to pay an extra 40% any private shop can work on a jeep Cherokee
It's a 327 with cylinders bored .040" over stock.
40
40 Psi
WD-40
Around 30-40 psi when at full operating temperature. Can even be somewhat lower on a high mileage engine.
Castroil 10w 40..They also make a high millage oil, is great if you have over 1000,000 miles.