Wr Engine ???

[51FL]

Hey Guys is the left CASE on a True Wr different from a Wl ??

[diesel55]

Hello probably stamped wr. enjoy

[51FL]

WOW more good info provided by diesel55 , Thanks ...... Now maybe I should reword my question for the .... well you get the point .WHAT IS THE DIFFERENCE AS FAIR AS MECHINICAL DIFFERENCES , IE ROLLER TO TAPER TO BALL BEARING ?? ARE THERE ANY MAJOR DIFFERENCES ASIDE FROM THE NUMBERS??

[gary.h]

hello 51 fl,i imagine you have heard of that site the beauty of speed? www.beautyofspeed.com maybe they might havesome info on any differences,,,take care.

[51FL]

Gary , Thank you . I had heard about them and forgot ,im gonna email him and see what he's got to tell me . Thank you again

[gary.h]

no prob! hope you find answers,if you do post em here if you would please im, curious myself now,,take care eh!

[46WL]

Hi, a WR is machined for the large roller bearing. That is the only difference. Besides the stamped numbers.. If you need a picture, let me know.

[51FL]

Please for pictures , that would be very helpful ...

[46WL]

here you go!

[fillibuster]

here you go!

them's balls

[rwm]

Hi, a WR is machined for the large roller bearing. That is the only difference. Besides the stamped numbers.. If you need a picture, let me know.

is the bolt pattern the same on the cases? they look different on the 2 lower ones opposite of the drain plug .

[Rubone]

is the bolt pattern the same on the cases? they look different on the 2 lower ones opposite of the drain plug .

Rob,
They are the same. A WL left will bolt to a WR right. The right case is the one with the differences. Ball bearings for the cams and crank, along with a different platform for the mag as opposed to a generator. Different for the idler stud as well.
Robbie

[Eric MATHIEU]

Rub is correct, any WL left case will match a WR right case and vise versa.

Basically here is what is specific about WR cases that I know:

1941 - 1949 WR
- Setup for ball bearings on crankshaft & cam shafts
- Special casting for alternate position of idler stud gear used to drive front mount magneto
- Generator cradle machined differently to accept front mount magneto (Edison Splitdorf front mount magneto)
There was also a run of cases that with 1948 casting dates that had a slightly different size ball bearing on the left side but I don't know why.

Mid 1949 to 1950 WR
- New thicker castings throughout for much stronger cases
- New specific casting for Wico front mount magneto (large flat platform)
- Setup for ball bearings on crankshaft & cam shafts
- Special casting for alternate position of idler stud gear used to drive front mount magneto


1951 - 1952 WR
- Modification in left side casting between the two cylinders. It looks like they added some material to have an oil circuit to the cylinder bases / pistons squirts but they never did it.
- Thick type castings throughout for much stronger cases
- Specific castings for Wico front mount magneto (large flat platform)
- Setup for ball bearings on crankshaft & cam shafts
- Special casting for alternate position of idler stud gear used to drive front mount magneto


This is all off the top of my head so I may have forgot some details or got mixed up in the dates but that's basically it.

!!! 46WL !!! Is that a 1949 left side WR case? If so I'm looking for one. I have other year WR cases (1946) for trade of other WR stuff. Let me know.


Eric

[c.o.]

Well look at that Gary! You pointed things in the right direction and look at the info!!! Thanks for the WR lesson Eric!

[46WL]

!!! 46WL !!! Is that a 1949 left side WR case? If so I'm looking for one. I have other year WR cases (1946) for trade of other WR stuff. Let me know.


Eric[/QUOTE]

Hey Eric- It's a '48, but I need it for a project. I could use a chromoly frame, though.