.. and about a week ago I sprayed em with my 20 year spray can of Liquid Wrench, - which I discovered 3 days ago had lost all it's pressure probably cause I unknowingly banged the head on it, probably shutting the hood.. So I bought a new spray can of B'laster and sprayed and soaked it a few more days - no cigar
So here's the specs of a very nice portable 3/8" torque wrench I just bought from Home Depot on sale for $140 with battery and charger
Lightweight Design. Heavyweight Performance.
Pair with MAX Output batteries for maximum power
Industry’s most compact
Powerful Brushless Motor delivers 250 ft./lbs. of breakaway torque
3 speeds + auto-tightening mode provides adjustable power and speed
Auto-tightening auto-stops when fastening to prevent over tightening bolts
Auto-tightening in reverse, delivers full breakaway torque, then stops when the bolt is loose
Tri-Beam LED enhances visibility and provides even distribution of light
Compatible with RIDGID’s AC13B04N Impact Wrench protective boot (sold separately)
100% Compatible: Works with all RIDGID 18V Batteries, Tools, and Chargers
Lifetime Service Agreement with registration within 90 days
Includes: R872071 18V SubCompact Brushless 4-Mode 3/8 in. Impact Wrench, R87002 2.0 Ah battery, charger, belt hook with screw, and tool bag
RIDGID: Build for a Lifetime
18V SubCompact Brushless Cordless 3/8 in. Impact Wrench Kit with 2.0 Ah Battery, Charger, and Bag
and it didn't seem to move any of em at full torque, even trying in both directions..
So I cleaned the oil + road dirt mix off the passenger side intake manifold area (to lessen the chance of a bon fire) and only M.A.P. torched it for about 3 minutes total cause I've never done it before and was getting smoke and embers and nervous and cold and it was now dark outside where I'm working on it and the crappy harbor freight "free head lamp" was turning off all on it's own way to much - even after messing with it a lot.... and "amazing to me " got the bolt loose closest to the windshield loose! BUT it didn't want to go "looser" and "tighter" back and forth ( CCW and CW ) only looser so went about 2 turns and going to give it chance to soak more over night. - and the head wasn't really very hot, maybe 110 F.
Progress, not perfection ... One down, two to go Grrrr ,, I mean "patience..."