1963 mccolloch 151

[Mac Colloch]

Hi all, my names Mac and I'm a saw addict! I've picked up a few vintage saws and currently rebuilding a 151, I have new piston and rings coming but I can't find part numbers for crank seals and connecting rod needle bearings. If anyone could point me in the right direction on where I might find parts even if other models fit that would be great.
Plan to use the saw so I'd like it to survive another 70 odd years so it can be passed down the blood line! Cheers

 

[Mastermind]

@heimannm

 

[Mastermind]

Hi all, my names Mac and I'm a saw addict! I've picked up a few vintage saws and currently rebuilding a 151, I have new piston and rings coming but I can't find part numbers for crank seals and connecting rod needle bearings. If anyone could point me in the right direction on where I might find parts even if other models fit that would be great.
Plan to use the saw so I'd like it to survive another 70 odd years so it can be passed down the blood line! CheersView attachment 310189

Welcome to OPE sir.

 

[Woodslasher]

Front Tank Mac

-Open piston pin bearing: Koyo B-88. Wrist pin bearings Koyo B-88 open, M871 closed

-Closed piston pin bearing: Koyo M-871.

-FW seal: 50663. SKF/CR 6763. Possibly also SKF 6522 (unconfirmed)

-PTO seal for ball bearing saws: 104432. SKF 6640. SKF 6816.

-PTO seal for needle bearing saws: 104128. SKF 7414.

-FW Bearing: 100824. 6203 C3 POSSIBLY the same as 66016 as used on the top tank saws....

-PTO Bearing for ball bearing saws: 100824. See above.

-PTO Bearing for needle bearing saws: 104129. Torrington B-1210 also Koyo 1210

 

[Mastermind]

Front Tank Mac

-Open piston pin bearing: Koyo B-88. Wrist pin bearings Koyo B-88 open, M871 closed

-Closed piston pin bearing: Koyo M-871.

-FW seal: 50663. SKF/CR 6763. Possibly also SKF 6522 (unconfirmed)

-PTO seal for ball bearing saws: 104432. SKF 6640. SKF 6816.

-PTO seal for needle bearing saws: 104128. SKF 7414.

-FW Bearing: 100824. 6203 C3 POSSIBLY the same as 66016 as used on the top tank saws....

-PTO Bearing for ball bearing saws: 100824. See above.

-PTO Bearing for needle bearing saws: 104129. Torrington B-1210 also Koyo 1210

Well. Thank you sir.

 

[Al Smith]

I came up with slightly different numbers . From the micro fiche IPL older than dirt these numbers for seals Clutch side Mc number 104128 which is Cr 7414 and Mc number 104432 or Cr 6816 flywheel side .This is not to say the numbers over the years have not been superceded at some time . I didn't however check the big black book of IPLs or the Mc Bob CD ROM he compiled .Nor did I check the sizes but often different CR numbers are exactly the same size .Differences could be the temp ratings on the seals ,slightly different lip codes etc --oops after thought those numbers have already been listed ,duh

 

[Woodslasher]

Well. Thank you sir.

I'd like to take the credit for this but Mark sent me this awhile back.

 

[Mac Colloch]

Welcome to OPE sir.

Thank you, good to be here amongst knowledgeable people.

 

[heimannm]

The McCulloch PN's for the loose needle bearings on the crankshaft/connecting rod (24 pieces) are 102742 or 69891 (69891X) and the same bearings were used on all of the large frame saws from the D-44 through the Super 550, 650, 797, and 895 plus the CP125 and SP105. I suspect the same ones were used on the SP125 models as well but they changed the part number to 85420 for the SP125 and there is no cross reference in the part number book(s) listings.

Mark

 

[jacob j.]

I've used several sets of these:

https://www.ebay.com/itm/174947954757