HomeJoin / RenewChaptersEventsMembersForumAbout
ScholarshipsMachinesDonateYouTube Watch HereGet the FREE Newsletter
acmoc

ACMOC Membership Benefits

  • FREE quarterly magazine filled with content about antique Caterpillar machines
  • FREE classified listings
  • ACMOC store discounts and specials
  • Full Bulletin Board Access
    • Marketplace (For Sale/Wanted)
    • Technical Library
    • Post attachments

$44 /year ELECTRONIC

$60 /year USA

$77 /year International

  1. Forum
  3. Antique Caterpillar Machinery Owners Club
  5. FOR SALE/WANTED
  7. Bad crank

Bad crank

More
4 years 4 months ago #220292 by Fat Dan
Looking for D315 w/o Bad crank was created by Fat Dan
Crank on crack Or cracked crank p/n 3F6777
Need a D315 for the 12A-03563 hopefully in western Canada or Alaska.
Not sure what would be cheaper to buy a long block or get a crank and do it myself. Living in Alaska presents different circumstances in shipping.
$77 cutting edge was over $350.00 in Shipping

ACMOC Member
Traxcavator: 60, 955E 12A08263; 57, 955C 12A04040; 57, 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320; 9K9982
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Tractor w/ Bullgrader Blade
Attachments:

Please Log in or Create an account to join the conversation.

More
4 years 4 months ago #220293 by Fat Dan
Replied by Fat Dan on topic Bad crank
Boat anchor might sell on Fbay condition FUBAR.
ACMOC Member
Traxcavator: 60, 955E 12A08263; 57, 955C 12A04040; 57, 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320; 9K9982
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Tractor w/ Bullgrader Blade

Please Log in or Create an account to join the conversation.

More
4 years 4 months ago #220430 by Fat Dan
Replied by Fat Dan on topic Bad crank
The D315 Cat crank mic-ed out at
mains all @ 3.499” spot on
watermarks and scratches 0.005 - 0.010“
clean up

rod’s book specs call for 2.999 - 3.000
No. 1 -.042 specs @ 2.958 not good
No. 2 -.035. specs @ 2.965 not good
No. 3 +0.001 specs @ 3.001
No. 4 -0.001 specs @ 2.999
What would be the max I can grind down the crank down
.030”, .060”, 0.120”
ACMOC Member
Traxcavator: 60, 955E 12A08263; 57, 955C 12A04040; 57, 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320; 9K9982
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Tractor w/ Bullgrader Blade

Please Log in or Create an account to join the conversation.

More
4 years 4 months ago #220432 by rax200
Replied by rax200 on topic Bearing sizes
Hi Fat Dan,
I had a look at Cat parts book and they only show .030 but when you go onto Machinery trader they show .010 to .050 are avalible for many suppliers.

Hope this helps

Regards
Daryl

1937 RD4 4G4368
1940 D4 7J3717
1942 D4 7J9915SP
1942 R4 6G2550SP
1944 D4 2T6584SP
1945 D4 2T8978SP
1946 D4 5T6271
1956 D4 7U37855
1954 DH226 S/N 89 Howard Tug

Please Log in or Create an account to join the conversation.

More
4 years 4 months ago #220435 by Fat Dan
Replied by Fat Dan on topic Yes it dose help. Good news is always welcome.
Yes it helps quit a bit. Thank you so much. Wow 0.050” ! Reminds me of a Ford 352-390 blocks, they could be bored out to 0.120”. I never did it but I heard they over heated quickly This is a Cat so I guess 0.050” ain’t too much. Now to find some bearings. Got a machine shop lined out.
I would have put money down that that crank was no good. I guess I’ll just have to keep it under Mach II. :heh:
ACMOC Member
Traxcavator: 60, 955E 12A08263; 57, 955C 12A04040; 57, 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320; 9K9982
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Tractor w/ Bullgrader Blade

Please Log in or Create an account to join the conversation.

  1. Forum
  3. Antique Caterpillar Machinery Owners Club
  5. FOR SALE/WANTED
  7. Bad crank
Time to create page: 0.148 seconds
Go to top