Scientifically rusted

This one's from Sastard Sr. via the old curmudgeons at CVMG.

Machinist's Workshop magazine tested penetrants for break out torque on rusted nuts with significant results!

They arranged a subjective test of all the popular penetrants with the
control being the torque required to remove the nut from a
"scientifically rusted" environment (obviously a BIG nut!).

Penetrating oil ...... Average torque

None ....................... 516 ft lbs

WD-40 ................... 238 ft lbs

PB Blaster .............. 214 ft lbs

Liquid Wrench ..... 127 ft lbs

Kano Kroil ............. 106 ft lbs

ATF-Acetone mix....53 ft lbs

The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic
transmission fluid and acetone. Note the "home brew" was better than any
commercial product in this one particular test. Our local machinist group mixed up a batch and we all now use it with equally good results.

Sastard Sr's Norton 16H

 

Sastard Swigid Honda

Made it out to the Sastard family farm today for some barn fresh building. Fun times. Always good doin' some building in different shops. Here's a blow by blow of how the Sastards Role.


First things first. Pick the coldest day you can and work where you're outta the wind, but have minimal heat sources (actually it was pretty reasonable once we were at it).

Second, find a donor with some suitable tubing and get at it on the band saw.

Next put some more stock frame on the floor.

Now heat up the remaining frame tubes and drop them down.


After notching the 10 speed bike tubes and dishing suitable cradles out of the frame posts...

...a little more grinding and we're ready for some oxy/acetylene goodness.


I love this shot of Billy. Looks like he's building a bike in the frackin Ukraine or something.

Here's the frame all tacked in place. Rigid struts welded right to the swingarm, to the shortened/lowered seat tubes and braced by a couple tubes that needed to be there to support the engine mounts. Great stance. Very old BSAy kinda shape.

As you can see from the pictures I didn't do sweet FA. Just sat around snapping pictures all day...oh except for the big dookie of brass I piled on POmmie's tank as I tried to braze some holes closed with Sr's torch. What a mess. no pictures.

Gifts from Sr.

When I arrived home from the Show & Shine today I found Sr. and his Mrs. outside my place. Sr. came by to drop off the Lil Desert Rose fork tubes that he'd straightened and he had another surprise for me as well. What's that? Did you say a YZ250? Well if you did it shows you've been paying close attention to the blog lately, but you would be wrong. No, in fact Sr. had just picked up two vintage bikes (one whole and a roller) from a gent in town for a cool case of beer. Sr. thought the '77 DT250 (the whole one of the pair) would make a better project for me than the YZ250 with the busted tranny and kindly dropped the bike off with an open offer to exchange it for/or in addition to, the YZ still sitting at the farm. Still following? Not sure why. But, here's the first pic. Stay tuned for developments. Thanks Sr. Damn it really is impossible to say no to a free bike.

More Sastard Sr. Gold

Sent some fork tubes from the Lil Desert rose out to the Sastard Homestead to be straightened and got this email back tonight:

I stuck your forks in the old power fist press but it's not so powerful anymore,
could only get 2500psi out of it so not 100% true
but if you balance the error with highspots forward for wheeliez or backward for hard braking it should work ok
unless you are really punishing it - in which case it will probably bend.....
upgrade the headstock and put in larger forks for best results or save this one for Elliot . I've got an old yz250 that just needs trans. work for you.

Sastard Sr.

Thanks Sr.

Reply from the Sr. Sastard

This is gold.

"most of these bearings are shrink fit. put the hub on the wood stove 'till it sizzels when you spit on it and the bearings should come out with some judicious tapping or prying.
SSr."

Great! Except I have a feeling I'm gonna have a harder time finding a wood stove than the bearing puller tool. It does get a guy thinking about heat guns though. Thanks Sr.

Sizzels when you spit, golden!