i use marvel mystery oil, or PB Blaster. both can be found at local McParts store
1977 Cherokee ChiefEdelbrock 1406, 33X12.50, front 1.5 inch shackle lift. AMC 360, th400 Quadra-Trac
2002 wrangler, stock 4.0, auto, 33X12.50 maxis buckshot, AEV Highline Body kit, Ford 9 inch rear end.
Soon to come mods: 4" full traction lift, 4.56 gears, 35X10.50R15 boggers, 35X12.50 cooper st tires, spooled rear end, and much more.
I don't care if PB Blaster was $25 a can (only $3-$4), it beats every canned penetrating lube I ever tried, hands down! If you have the opportunity, spray what you plan on loosening the day before, and again about 15mins before putting the torque to it. YES, it's that good
Second light bracket, another bad-mama screw...this one rounded out almost instantly, so I drilled it and tried a screw extractor with a wrench. Shattered the "Hardened Steel" extractor bit in the hole.
I also use heat when that won't cut it. When I get one that just wont move I use a small oxy-propane torch to heat the metal around the screw. Tap it a couple times and crank 'er out. The heat expands the metal around it faster than the hardened screw. Won't work on nice painted surfaces though... Ya don't want to torch the paint off your windshield brackets... But for suspension bolts and such, heat is a life saver compared to drilling and tapping a new hole.
...with the torques bits breaking in the hole, I've seen that a lot when it is not all the way down into the hole.
You may save a bit or two if you seat it, tap it down in there really good, then crank on it with a breaker bar at exactly 90 degrees to not pull off on an angle. Once that bit starts to tip or slide out of the hole the slightest bit, they'll snap. Its imperitive to keep the handle straight out and hold pressure down on the bit end to keep it in there tight.
When I took off the old tailights on my Cj, the bolt broke off so I ripped the light itself away from the bolt and we used a grinder to cut it in half and it fell right out. We could have used our acestadline (Can't spell) torch but then we might have caught our barn on fire.
Having oil or anything flameable near or on what you are putting heat to usually ends up with the fire department having to be called and one HOT Jeep!
1997 Tj - Black
1998 Tj - Red
I may be the youngest on these forums, but I can drive like the best of them!
My dad and i had to replace a leaf spring on my jeep. One of the bolts wouldn't nbdge, even with my dad standing on a 3 foot long cheater bar (my dads a 325lb man). We had sprayer PB blaster on it everyday for 3 weeks before. It wouldn't budge. We tried heating it then spraying more PB on it and it worked like a million bucks. Just used a propane torch. The heat sucks in the pb blaster when it shrinks. TRy it and if it doesnt work... pull out the sledge hammer and pound away...