Easy carrier bearing install

[72stepside]

I read a few posts about changing out a carrier (center support) bearing on a two piece driveshaft. Sounded like it was gonna involve alot of banging and cussing. We got it cut off pretty easy using a pneumatic high speed cut off tool and a chisel.

To put it on, we simply put the bearing in my mother's oven and set the temp at 110 degrees. The business end of the driveshaft sit in an ice chest full of ice for about an hour. We took them out to the shop to begin the pounding when I slid the bearing all the way home, NO HAMMER INVOLVED! Next was the little dust cover/bushing that we salvaged from the original. Two whacks with a 3 pound hammer (used a piece of pipe to set it) and we were done.

Seemed too easy. I guess I was lucky!

[fordman]

that is one of the older way to do things. i heard about guys who installed sleeve in engines. they would heat the cylinder with a torch or something and put the sleeve In the freezer. and then put the sleeve in the hot cylinder.

[basketcase0302]

Nice trick to remember.
I also remember hearing about pressing new crank bearing onto motorcycle engines like this.

[flyboy2610]

That's the way to do it when ever possible. Heat one part and freeze the other. Metal expands and contracts with heat and cold.
Although the parts on our trucks probably aren't as extreme as this:
http://answers.yahoo.com/question/index ... 623AA7sPMu

[Bullitt390]

That's the way to do it when ever possible. Heat one part and freeze the other. Metal expands and contracts with heat and cold.
Although the parts on our trucks probably aren't as extreme as this:
http://answers.yahoo.com/question/index ... 623AA7sPMu

Gotta love the SR-71. The "real" top speed has never been released, only noting the limits of speed were the ability of the compressor turbine blades to withstand no more than 800 degrees.

Gotta love a jet that can run full time on afterburner!

Josh

[Alvin in AZ]

...slid the bearing all the way home, NO HAMMER INVOLVED!

Cool! :)

Paraphrased from Lange's...
Thermal Expansion x10^6 of Alloys of:
Fe = 10 to 12 (stainless can be ~16)
Mg = 16
Cu = 16.5 to 19
Zn = 20 to 21
Al = 22 to 26

Two guys (on FTE) so far have packed dry ice in stuck-tight aluminum distributors
and then pulled 'em right out, after I asked them to try it out for me. :)

"heat seems to loosen things up even tho in theory it shouldn't make a difference"
-paraphrased Richard Curly Hastings metallurgist

He was talking about heating the whole works like loosening exhaust manifold bolts
is best done while the whole works is hot.

Alvin in AZ

[cdeal28078]

I have seen an SR-71 do a fly by at Randolph A.F.B. outside San Antonio around 83. It was pretty awesome. It did the fly over circled around and landed. It was taxied directly into a hanger and security was tight all around the area. After the air show was about over it taxied it and took off and was gone in no time. Everybody got to looking at something else thinking it was gone and out of nowhere it flew back over about 1500 feet off the runway. You could see the air bubble around the wing root area as he was just barely under the sound barrier. That thing was hauling the mail.
clint