3022 1/2 reamer

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Model T Ford Forum: Forum 2014: 3022 1/2 reamer
Top of pagePrevious messageNext messageBottom of page Link to this message  By Douglas Dachenbach on Sunday, September 14, 2014 - 03:49 pm:

I bought a set of Model T reamers and have been trying to complete the set. The 3022 ˝ reamer was missing. A while back I bought a [ Ray Chicago 3022 ˝ reamer] which is suppose to be for the piston pin bushing. This one measures 0.750” but from what I was able to find out that from 1909 to 1923 it should be 0.9375 and from 1923 to 1927 it should be 0.8720. The first reamer I got was damaged by someone trying to clean it with a wire brush on a bench grinder. It is a dull as a hoe. Today I received a second one that is good and sharp except it is a taper reamer going from 0.590” to 0.704”. It is also marked 3022 ˝ plus marked 3014 or 8014. I can't see that a taper reamer could possibly be used on a piston pin bushing. But none of my other measurements match each other either. Any ideas on what I have and what I should be looking for?


Top of pagePrevious messageNext messageBottom of page Link to this message  By samuel pine on Monday, September 15, 2014 - 04:25 am:

Maybe i'm not reading this correct but the
taper reamer is (out) not for this job. I think
you need (although most don't like) but an
expandable reamer to get the inbetween numbers.
Myself I get good results with them, because
they carry a good range of numbers; just adjust
the reamer, mic it a little minus and go for it.
If still a no go, add another .001 to the reamer
and so on, thats the good thing about these.
sam


golden rule "never turn a reamer backwards"


Top of pagePrevious messageNext messageBottom of page Link to this message  By Douglas Dachenbach on Monday, September 15, 2014 - 08:13 am:

Does anyone have the piston pin bushing size for those years? I haven't found a list of sizes anywhere for any of the reamers. To fill in this boxed set I'd like to know what size to substitute for the missing 3022 1/2 reamer. Looks like it could be either of two depending on the year.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Roger Karlsson, southern Sweden on Monday, September 15, 2014 - 08:39 am:

Here's some info from the 1923 Ford Dealers Data Book: http://www.mtfca.com/books/ford.htm#mot

"The piston pin is a hollow shaft 3-1/2" in length. (--) Before the wrist pin is inserted in the piston, the brass bushings are reamed to .740" to .741". The wrist pins are then fitted in the piston with a snug fit; this work is held to a half-thousandth of an inch."


Top of pagePrevious messageNext messageBottom of page Link to this message  By Douglas Dachenbach on Tuesday, September 16, 2014 - 07:41 am:

Thanks Roger. That is what I have been looking for. Doug


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