just so you know the cam cover and engine block from harley is line honed on center and just swaping out an odd bushing does work -- its never perfect unless you use the cam bearing hole to set the location of the bushing center - jims bushings are just for the purpose as they are undersized so you can set the perfect center to the cone bolted location to the engine blocks cam bearing hole center location --

using an OEM bush is the deal

 

Thanks for clearing that up.

 

I think you might mean ...

"just swaping out an odd bushing does NOT work".


Tatro Machine in San Diego has a series of videos documenting just this process ...

 

i an so happy for them --

no two machines are alike and actually set on the exact same center even at harley no 2 engine cases are the same, Sure you can mis match cases from time to time and it works all glued up but, they were made at different times with different sharpness of the tool bits not the same temps in the shop at the same time and operation speed also has an effect

i am done - cases and nose cones are a hap hasard install with worn parts you can get by

 

I didn't mean to offend, John. I was genuinely confused. So ...

Strictly speaking, no; it's a matched set. But, in theory, yes. You might get away with it if the tolerances match closely/items loose.

Does the bush melt in de-chroming acid?

 

no it fuzzes it a bit but it cleans up fine

 

Thanks.

I've got to do some homework on de-chroming. I thought they used reverse electrolysis but it seems they just use chemicals/acids like muriatic/hydrochloric acid. I actually don't know how my local guys do it, and how they treat various metals, such as die cast zinc alloys, but they certainly don't have any electrodes involved.


I had a couple of bad experiences with them blowing a hole through a nacelle, and chewing up a headlamp bracket, by putting them in the wrong vat so I learned zinc is reactive to to HCI the hard way!

I read of the acid being used to clean brass, as it is also alloy made of copper and zinc, but also that it's used to recover the copper from it ... if cooked and left for long enough.

It's hard to skim through opinions on the internet to find the real facts.

 

many years back one of the wack jobs that worked for us would strip chrome

he took car battery acid and filled a plastic bucket with it then suspend the piece in it

then took an GM alternater and hooked it up backwards positive ground and it reversed the chrome positive charge and released it from the alloy

 

That is pretty much how our local chrome and polishing place does it....only they use a bigger bucket