Block Questions

Farmall Cub Forum -- Questions and answers to all of your Cub related issues.

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.

Block Questions

Postby raystractors » Sun May 05, 2013 6:52 pm

I bought two cub blocks this weekend, and have a few questions for those in the know. First the yellow one that I got has a strange serial number, or strange to me, it is 60CT20318278X With a cast code of 9-23-Z which I take to mean 1976, and the part number is 251341-R8, Would this have been on a regular cub? Second question, there is some piting around the cylinder, How much can the head gasket take care of before the block would need to be decked? This block is standard bore with no ring groove and looks to have at least one cylinder that has been sleaved. I checked the bore with a caliper, and then used a compression ring of standard size one inch below the top of the cylinder, it has a gap of .014. I will try to post a pic of the block but I am on dial-up. any comments are welcome.
Attachments
block 2.jpg
block 2.jpg (107.39 KiB) Viewed 584 times
User avatar
raystractors
Cub Star!
Cub Star!
 
Posts: 217
Joined: Wed Aug 31, 2011 11:55 am
Location: Dover TN
Zip Code: 37058
Tractors Owned: 1950 Cub, 1952 Cub, 1970 Cub, 1975 Cub, 1953 Cub, 1939 A, 1948 super A, 1952 super A, 1950 C demonstrator, 1952 Super C, 1949 H, 1956 farmall 300, 1957 international 350, 1963 Massey Ferguson 35
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby Boss Hog » Sun May 05, 2013 7:48 pm

I think you may be ok as far as sealing if you use copper coat or the like on the gasket
IN GOD WE TRUST
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg
User avatar
Boss Hog
Cub Pro
Cub Pro
 
Posts: 9801
Joined: Mon Oct 24, 2005 8:35 pm
Location: VA. Randolph
Zip Code: 23962
eBay ID: dmb2613
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby John *.?-!.* cub owner » Sun May 05, 2013 8:59 pm

I do not have any documentation, but I believe I read that your serial number was used on the numbered lowboys.
"The Constitution is not an instrument for the government
to restrain the people, it is an instrument for the people to restrain the
government lest it come to dominate our lives and interests." Patrick Henry
User avatar
John *.?-!.* cub owner
Team Cub Guide
Team Cub Guide
 
Posts: 19448
Joined: Sun Feb 02, 2003 2:09 pm
Location: Mo, Potosi
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.

Re: Block Questions

Postby RaymondDurban » Sun May 05, 2013 9:24 pm

I'm not in front of my database, but around '73-'74, all the C-60 engine SN's switched to this style numbering system.
If you bought a bare block, it's impossible to tell what it originally came off of. If it had the water outlet, crank, or alternator/generator still attached, we might be able to tell you.
User avatar
RaymondDurban
Team Cub Mentor
Team Cub Mentor
 
Posts: 4259
Joined: Wed Dec 26, 2007 7:45 pm
Location: FL, Crestview
Zip Code: 32536
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby cub47 » Sun May 05, 2013 9:31 pm

Just my two cents, but if you are rebuilding that block with the pitting on top, I would have it surfaced to remove the pitting along with the cylinder head.
cub47
5+ Years
5+ Years
 
Posts: 2198
Joined: Fri Dec 03, 2004 3:17 pm
Zip Code: 00000
Tractors Owned: Banned for multiple site rule violations.
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby raystractors » Mon May 06, 2013 11:09 am

The guy that I bought these from, told me that they came from a regular cub and not a lowboy, but I am not sure that he knew. They were in a machine shop that he had taken over, and may have been left by their owners. I will attach another pic of the pit problem, but it is not much better than the others.
Attachments
block3.JPG
block3.JPG (76.82 KiB) Viewed 417 times
User avatar
raystractors
Cub Star!
Cub Star!
 
Posts: 217
Joined: Wed Aug 31, 2011 11:55 am
Location: Dover TN
Zip Code: 37058
Tractors Owned: 1950 Cub, 1952 Cub, 1970 Cub, 1975 Cub, 1953 Cub, 1939 A, 1948 super A, 1952 super A, 1950 C demonstrator, 1952 Super C, 1949 H, 1956 farmall 300, 1957 international 350, 1963 Massey Ferguson 35
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby bob in CT » Mon May 06, 2013 11:20 am

My 77 begins with 60CTU.
User avatar
bob in CT
Cub Pro
Cub Pro
 
Posts: 5239
Joined: Thu Jun 07, 2007 9:34 am
Location: CT, Manchester
Zip Code: 06040
Tractors Owned: 77 Cub (red); 74 Cub; 52 Cub; 50 Cub ( post-demo)
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby RaymondDurban » Mon May 06, 2013 11:42 am

raystractors wrote:.... First the yellow one that I got has a strange serial number, or strange to me, it is 60CT20318278X With a cast code of 9-23-Z which I take to mean 1976, and the part number is 251341-R8...

Could you look at that EngineSN number again? I'm thinking it might be 60CT2U------X
"60CT2U" is the prefix for the C-60 engine, then followed by the 6 digit engine SN, followed by the "X". I haven't figured out what the "X" means yet.
User avatar
RaymondDurban
Team Cub Mentor
Team Cub Mentor
 
Posts: 4259
Joined: Wed Dec 26, 2007 7:45 pm
Location: FL, Crestview
Zip Code: 32536
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby Don McCombs » Mon May 06, 2013 12:25 pm

That's where the hidden treasure is buried, Raymond. :D
Don McCombs
MD, Deep Creek Lake

"1950 Something" Farmall Cub
1977 International Cub w/FH
1978 International Cub
1948 Farmall Super A
1951 Farmall Super C w/FH
User avatar
Don McCombs
Team Cub Mentor
Team Cub Mentor
 
Posts: 10533
Joined: Mon Feb 03, 2003 6:45 am
Location: MD, Deep Creek Lake
Zip Code: 21550
Tractors Owned: "1950 Something" Farmall Cub
1977 International Cub w/FH
1978 International Cub
1948 Farmall Super A
1951 Farmall Super C w/FH
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby RaymondDurban » Mon May 06, 2013 12:37 pm

If only it were that easy!! :lol:
User avatar
RaymondDurban
Team Cub Mentor
Team Cub Mentor
 
Posts: 4259
Joined: Wed Dec 26, 2007 7:45 pm
Location: FL, Crestview
Zip Code: 32536
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby John *.?-!.* cub owner » Mon May 06, 2013 12:44 pm

RaymondDurban wrote:.........
"60CT2U" is the prefix for the C-60 engine, then followed by the 6 digit engine SN, followed by the "X". I haven't figured out what the "X" means yet.
X at the end of a chassis serial normally indicated gasoline and was followed by a number indicating other options such as high altitude, gear set, etc. I have never found a listing showing what an X at the end of an engine serial meant. The book I have ends with V as a engine serial suffix list.
"The Constitution is not an instrument for the government
to restrain the people, it is an instrument for the people to restrain the
government lest it come to dominate our lives and interests." Patrick Henry
User avatar
John *.?-!.* cub owner
Team Cub Guide
Team Cub Guide
 
Posts: 19448
Joined: Sun Feb 02, 2003 2:09 pm
Location: Mo, Potosi
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.

Re: Block Questions

Postby RaymondDurban » Mon May 06, 2013 12:51 pm

Good point John, I hadn't thought about that.
User avatar
RaymondDurban
Team Cub Mentor
Team Cub Mentor
 
Posts: 4259
Joined: Wed Dec 26, 2007 7:45 pm
Location: FL, Crestview
Zip Code: 32536
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby ricky racer » Mon May 06, 2013 1:18 pm

cubguy47 wrote:Just my two cents, but if you are rebuilding that block with the pitting on top, I would have it surfaced to remove the pitting along with the cylinder head.

:Dito:
1929 Farmall Regular
1935 John Deere B
1937 John Deere A
1941 John Deere H
1952 John Deere B
1953 Farmall Cub
User avatar
ricky racer
5+ Years
5+ Years
 
Posts: 2791
Joined: Wed Sep 12, 2007 8:40 pm
Location: Niles / Buchanan, Michigan
Zip Code: 49120
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby raystractors » Mon May 06, 2013 3:11 pm

I guess that I knew what should be done, but I am always looking to save a little. Like the old words of wise, pay me now, or pay me more later. I would hate to put all that work into an engine, and then have to do it all over again. The other block that was with this one is a red 1951 that has been bored out .010, but looks good as far as wear and cracks. Serial number FCUBM 140033. There were other parts included with these that I didn't need, but someone may at some point, 2 sets hydrolic lines, a pump, 3 governers, parts of two carburators, starter, rods, pistons, valves, 2 flywheels
User avatar
raystractors
Cub Star!
Cub Star!
 
Posts: 217
Joined: Wed Aug 31, 2011 11:55 am
Location: Dover TN
Zip Code: 37058
Tractors Owned: 1950 Cub, 1952 Cub, 1970 Cub, 1975 Cub, 1953 Cub, 1939 A, 1948 super A, 1952 super A, 1950 C demonstrator, 1952 Super C, 1949 H, 1956 farmall 300, 1957 international 350, 1963 Massey Ferguson 35
Circle of Safety Award
Circle of Safety: Y

Re: Block Questions

Postby raystractors » Mon May 06, 2013 9:37 pm

Could you look at that EngineSN number again? I'm thinking it might be 60CT2U------X


You were Right it is a U and not a 0
User avatar
raystractors
Cub Star!
Cub Star!
 
Posts: 217
Joined: Wed Aug 31, 2011 11:55 am
Location: Dover TN
Zip Code: 37058
Tractors Owned: 1950 Cub, 1952 Cub, 1970 Cub, 1975 Cub, 1953 Cub, 1939 A, 1948 super A, 1952 super A, 1950 C demonstrator, 1952 Super C, 1949 H, 1956 farmall 300, 1957 international 350, 1963 Massey Ferguson 35
Circle of Safety Award
Circle of Safety: Y


Return to Farmall Cub

Who is online

Users browsing this forum: Trent M and 2 guests