I use to do that. One of my mishaps left a mark on the heater duct in the shop in Germany. That was in 1971 and I was there for a visit and to show my wife where I use to work and heater duct still is dented in where my knees hit. This heater duct is around 10 foot off the ground. We were tring to get a bolt out on an entrenching machine and I was on the fender on my knees and the other guy was on the other side with a breaker and bar and cheater pipe. I was pulling and he was pushing well the dam 3/4 inch bolt broke. He caaught himself and I did a somesault off the fender into the heater duct and fell 8 foot to the floor. Another guy happened to walking thru and he caught me and broke my fall which probably saved me from breaking my back. As it was I screwed up my knees and spent 3 day in Landstul hospital. The good part is I got put on bed rest for a month so I got to sit on my balcony at my apartment drink beer and talk to the German ladies walking by
How often do You do this....
- Thread starter D2Cat
- Start date
torch
Well-known member
Equipment
B7100HSD, B2789, B2550, B4672, 48" cultivator, homemade FEL and Cab
Depending on the circumstances, a heli-coil can be stronger than original. Soft materials in particular can benefit from both the larger diameter of the heli-coil itself in the base material and having spring steel threads against the fastener.
Daren Todd
Well-known member
Lifetime Member
Equipment
Massey Ferguson 1825E, Kubota Z121S, Box blade, Rotary Cutter
Had a machine shop install a version of these before. http://www.timesert.com
They are much stronger then the helicoils. With having some mechanics at our other locations that (using Tooljunkie's term) can wreck anvils
The stronger the better. So the helicoil only lasts till the next tear down. Then some tater head runs a 1/2" bolt into the hole with a 3/4" impact because they don't feel like a "man" using a 1/4" drive impact and pulls the helicoil out. Then they call and b##ch because they pulled out the threads I keep meaning to swing by there and ask them what the brand name is, so I can keep some on the shelf at the shop.
Lil Foot
Well-known member
Lifetime Member
Equipment
1979 B7100DT Gear, Nissan Hanix N150-2 Excavator
Used them, but if you're looking for ultimate strength, these may be the top dog.
http://www.alcoa.com/fastening_syst...al/catalog/productcatalog/KeysertBrochure.pdf
PHPaul
Well-known member
Equipment
B2650, Pronovost snow blower, Landpride rotary mower, Howard tiller, box blade
Somebody beat me to one of the Mechanic's Guidelines (Run it down until it strips than back it off a quarter turn).
Two more I picked up in 40+ years in the maintenance business:
"Measure it with a micrometer, mark it with chalk and cut it with an ax."
And, if you don't have a torque wrench handy, just run it down snug and then reef on it until yer eyeballs pooch out just a bit.
But seriously folks, I've been working on motorcycles for a LOT of years. Putting aluminum screws into aluminum threads will teach you the value of proper tools quickly. Besides the usual torque wrenches, I have one calibrated in in/lb for the little fasteners.
Two more I picked up in 40+ years in the maintenance business:
"Measure it with a micrometer, mark it with chalk and cut it with an ax."
And, if you don't have a torque wrench handy, just run it down snug and then reef on it until yer eyeballs pooch out just a bit.
But seriously folks, I've been working on motorcycles for a LOT of years. Putting aluminum screws into aluminum threads will teach you the value of proper tools quickly. Besides the usual torque wrenches, I have one calibrated in in/lb for the little fasteners.
Last edited:
Hook
Member
Equipment
L3240 with LA514 FEL, Box Blade, Howard Rotovator, All Purpose Plow, Sub Soiler
Great read. For years I have serviced my own vehicles. I never take a vehicle to one of those quick lube service centers for an oil change. They use impact wrenches to tighten oil pan drain plugs! When it is time to rotate tires on my vehicles I do that also. In the past I have had to break loose lug nuts by standing on a pull handle because some "technician" thought he was "Charlie Daniels of the IMPACT wrench"(I know it supposed to be torque wrench but they don't use torque wrenches). Jumping up and down with 172 lbs of force on the end of a 14 inch pull handle is a lot of torque.
Daren Todd
Well-known member
Lifetime Member
Equipment
Massey Ferguson 1825E, Kubota Z121S, Box blade, Rotary Cutter
Thanks buddy, those were the ones I was looking for last night but couldn't find. Had a local machine shop redo some threads on a volute for a 10" pump that someone had let freeze up. It had popped the threads on most of the bolt holes on the volute it self. And at $8k to replace, my boss wanted to try fixing first. Had 12 of those installed on the volute for around $180.
Daren Todd
Well-known member
Lifetime Member
Equipment
Massey Ferguson 1825E, Kubota Z121S, Box blade, Rotary Cutter
My fondest memory of improperly installed wheels was a chrysler intrepid, my full 180 lbs bouncing on a 4 foot pipe to break loose. Got wheel off and could see the grease a particular tech liked to use. Threads and taper had grease. Wouldnt think it would lock that tight on aluminum.
Promised tech if i ever saw that crap again he would find his entire toolbox filled to rim with grease. He wiped grease on everything.
Exhaust manifold bolts are alwys fun.
Made this adapter for my 1/4"air ratchet.
Promised tech if i ever saw that crap again he would find his entire toolbox filled to rim with grease. He wiped grease on everything.
Exhaust manifold bolts are alwys fun.
Made this adapter for my 1/4"air ratchet.