Unofficial Allis Homepage
Forum Home Forum Home > Allis Chalmers > Construction and other equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

645 loader crankshaft

 Post Reply Post Reply
Author
Message
CAL(KS) View Drop Down
Orange Level
Orange Level


Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3031
Post Options Post Options   Thanks (0) Thanks(0)   Quote CAL(KS) Quote  Post ReplyReply Direct Link To This Post Topic: 645 loader crankshaft
    Posted: 09 Jan 2019 at 11:11am
Friend of mines 645 needs a crank.  tractor serial 2332  1968 according to what we found.  eng is a 3500 3D-07388.  he says there is a whole bunch of different casting numbers and large and small counterweights.  his crank has 2 dowels but everything he can find doesnt use the dowels.  he was told they had leakage issues and did away with the dowels.  supposedly everything crosses back to a 74028608.  this has cam drive oil pump.



Edited by CAL(KS) - 09 Jan 2019 at 11:11am
Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD10W,HD16

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, R62, R72 HD15
Back to Top
Sponsored Links


Back to Top
Alvin M View Drop Down
Silver Level
Silver Level


Joined: 24 Jun 2018
Location: PA
Points: 179
Post Options Post Options   Thanks (0) Thanks(0)   Quote Alvin M Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jan 2019 at 11:50am
in PA Countryside tractor has some 717-923-0421 number on crank would be helpful
Back to Top
ACjack View Drop Down
Silver Level
Silver Level
Avatar

Joined: 13 Sep 2014
Location: Peoria, Arizona
Points: 180
Post Options Post Options   Thanks (0) Thanks(0)   Quote ACjack Quote  Post ReplyReply Direct Link To This Post Posted: 10 Jan 2019 at 9:50am
Originally posted by CAL(KS) CAL(KS) wrote:

Friend of mines 645 needs a crank.  tractor serial 2332  1968 according to what we found.  eng is a 3500 3D-07388.  he says there is a whole bunch of different casting numbers and large and small counterweights.  his crank has 2 dowels but everything he can find doesnt use the dowels.  he was told they had leakage issues and did away with the dowels.  supposedly everything crosses back to a 74028608.  this has cam drive oil pump.


   Different casting numbers on the crankshaft? There should only be one casting number and that number is cast onto the crankshaft. If he looks closely he should find a part number stamped on the crankshaft and a serial number also stamped on it. The serial number will have the fewest digits in it. "Large and small counterweights". Is he referring to the counter weights that offset the connecting rod journals? If so those are part of the crankshaft forgings and are pretty uniform in size from one rod journal to another.
   I worked in engine assembly (dept 75) from mid 1969 to mid 1974 and every engine that was made used two dowel pins in the rear flange. I never heard of a rear end leakage problem caused by leaks due to the dowel pins.  
Back to Top
CAL(KS) View Drop Down
Orange Level
Orange Level


Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3031
Post Options Post Options   Thanks (0) Thanks(0)   Quote CAL(KS) Quote  Post ReplyReply Direct Link To This Post Posted: 10 Jan 2019 at 9:56am
he can not find anything with the same casting #.  yes i was referring to the counterweights being different sizes for 426 engines.  is there a reason any other 3500 crank wouldnt work?

Edited by CAL(KS) - 10 Jan 2019 at 9:57am
Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD10W,HD16

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, R62, R72 HD15
Back to Top
ACjack View Drop Down
Silver Level
Silver Level
Avatar

Joined: 13 Sep 2014
Location: Peoria, Arizona
Points: 180
Post Options Post Options   Thanks (0) Thanks(0)   Quote ACjack Quote  Post ReplyReply Direct Link To This Post Posted: 10 Jan 2019 at 6:37pm
I can't say for certain if later cranks would fit. 
Back to Top
SteveM C/IL View Drop Down
Orange Level
Orange Level


Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 4484
Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jan 2019 at 12:39pm
Pretty sure any cam drive you find will fit/work regardless
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.063 seconds.


Help Support the
Unofficial Allis Forum