1-5-3-6-2-4
the 4.0 six in a 90 jeep Cherokee is not a v6 it is an inline 6. the firing order is 153624
Have you changed your oil lately? You can try adding 10/40 wt. oil the next time you change oil.
you might try spraying WD-40 into the bearings of the fan and fan motor, and then spinning the motor by hand a few times. If this does work, you will have to add a regular lubricating oil to the places where you have sprayed the WD-40, as it will dry out fairly quickly. I would recommend using Gunk 'Super Oil'.
The 40 amp motor probably produces double the horsepower of the 22 amp motor.
Yes this is what we call efficiency of the motor. We give 100 but the motor in turn gives 40, so its efficiency is 40%
WD-40
40 Psi
35 to 40 psi
.35 to .40
10w/40
yes, 10-40 just a higher grade motor oil then 5-30 or 5-40 i run 15-40 in my Ford Explorer
How much oil do I use per gallon of gas for a 40 HP Johnson motor