MTFCA Forum

Please show the set-up you use to run your shaft in.

I blue/scrape any high spots and use Timesaver to set my rods and crank.

I know what you mean by using the word burnishing for this but if there is an abrasive being used .. it’s something else. Even though the abrasive is fine you are grinding. I use burnishing two ways in my day job; gold leaf and putting a glossy surface on albumen photographic prints. In both cases the object to be burnished is rubbed with a tool only to make the surface smoother.

Burnishing to me means "heat"...
I recall the term mostly in automatic transmission clutch plates. Some rebuilders will slip the clutches purposely, after a rebuild to smooth out the clutches. Supposedly this helps with smoother shifts/clutch application.
Not a big believer myself.

Torque converter lock-up clutches on some vehicles, had a break-in procedure that was activated through the computer to basically slip the clutch for a couple hundred miles after replacing a converter.

Burnishing or running in is not necessary if the surface finish and dimensional tolerances of the crankshaft and main bearings is good.

“Running In” as Ford specified was to correct the fits and tolerances in case the machining was sloppy. In most cases it was. The act of “liberally oiling the bearings and running in the mains until the bearings smoke” was to provide a fairly precise fit without high precision measuring, without high precision machining, and with only a moderately skilled mechanic doing the work. The temperature that the oil smokes at is the temperature that the journal has expanded enough to provide proper oil clearance once everything has cooled.

i guess i could use this!!!!!!!!!charley

Charley I like it more pictures please

ok.charley

Where is it? It needs to go to the Model T Museum!

don't worry about it it is in my museum.ha ha. charley

HornsRus wrote: ↑

Thu May 09, 2019 9:56 pm

don't worry about it it is in my museum.ha ha. charley

It's just waiting for Charley to decide to scrap it. What a shame.


Jason Walters

Charley: Email went. Thanks, Dan

scrap maybe not,as i have been offered $5000.00 for it.oh looks like sandblast and go to work. charley

How is it driven? is it flat belt on the drum or are the inturnals of the drum an electric motor?
This diagram shows the complete engine has a fuel line, is the engine being driven or for driving?

it is run off line shaft,but motor can do the work, also motor can be started with it. charley

If the engine was driving the crank in the bare block as shown in the picture, it would be turning the crankshaft in the wrong direction.

do you think it would matter??????????? charley

Found an original ad, my question answered, for running in the complete engine as well, neat tool wish I had one

kerry i saved mine from the scrapman 30 years ago at an auction for $60.00.maybe you will get lucky to.charley

Not exactly burnishing but I do like to run in !

After I finish line boring I burnish the Bearings to the crank with time saver in the same setup.

Take a look @ www.youtube.com/watch?v=pJRMptqPNB4