1948 Governor

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.

1948 Governor

Postby PVF1799 » Sat Mar 23, 2013 8:03 pm

Today - we disassembled the governor. Below I've listed a couple of findings.

1. The flyweights have been going out so far for so long, they've actually worn a groove on the inside of the governor housing. - What's the most common cause of this?

2. The the linkage on the top has play in the keyway where the spring attaches.

3. I've read the power point on the rebuild but really I'm not too sure what needs to be rebuilt.

Thanks again - Ken
Ken
Pleasant View Farm - Est. 1799
My Restoration Project - FCUB '48 - Rex
User avatar
PVF1799
501 Club
501 Club
 
Posts: 1097
Joined: Fri Mar 15, 2013 9:46 pm
Location: Altamont, NY
Zip Code: 12009
Skype Name: ken.r.rau
Tractors Owned: 1929 Farmall Regular (Original Owner)
1947 Farmall H #265658X1
1948 Farmall Cub #21005
1955 Farmall Cub #190769
1961 Cub Cadet #16509
1975 Cub Cadet 1250H
197x IH 990 Haybine
1994 JD 5320 Diesel
Attachments: Woods 42F Fast Hitch, L38 Disc Fast Hitch, F11 Plow Fast Hitch, Land Plow, Snow Plow, Grader Blade, Planter w/Fertilizer, Cultivators, Hilling Disks, Sickle Bar Mower(2), IH 7' Sickle Bar Mower, Flail Mower and 5' International Belly Mower.
Circle of Safety Award
Circle of Safety: Y

Re: 1948 Governor

Postby John *.?-!.* cub owner » Sat Mar 23, 2013 8:17 pm

I have seen several lately where the weights are rubbing the housing, and all the ones I have checked closely had the pivot pins and/or the holes in the weights worn. The hole seems to wear worse on one end of the weight than the other. End with tab that runs against thrust bearing if I recall correctly.
"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: 19451
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: 1948 Governor

Postby PVF1799 » Sat Mar 23, 2013 8:44 pm

Thanks John - I saw in the power point text that you can fill the holes with braise and redrill - While I've got a nice shop I don't have that type of machine shop. Guess I'm down for some new parts.....

Regards, Ken
Ken
Pleasant View Farm - Est. 1799
My Restoration Project - FCUB '48 - Rex
User avatar
PVF1799
501 Club
501 Club
 
Posts: 1097
Joined: Fri Mar 15, 2013 9:46 pm
Location: Altamont, NY
Zip Code: 12009
Skype Name: ken.r.rau
Tractors Owned: 1929 Farmall Regular (Original Owner)
1947 Farmall H #265658X1
1948 Farmall Cub #21005
1955 Farmall Cub #190769
1961 Cub Cadet #16509
1975 Cub Cadet 1250H
197x IH 990 Haybine
1994 JD 5320 Diesel
Attachments: Woods 42F Fast Hitch, L38 Disc Fast Hitch, F11 Plow Fast Hitch, Land Plow, Snow Plow, Grader Blade, Planter w/Fertilizer, Cultivators, Hilling Disks, Sickle Bar Mower(2), IH 7' Sickle Bar Mower, Flail Mower and 5' International Belly Mower.
Circle of Safety Award
Circle of Safety: Y

Re: 1948 Governor

Postby Criswell » Sun Mar 24, 2013 9:15 am

Look to three of the Blue Ribbon Service Manuals for the specifications and tolerances for the governor components.
GSS-1008 Specifications Manual, pages 21 and 22
GSS-1411 Service Manual, page 2-14
GSS-1132 Fuel System-Carbureted Engines Manual, page 21

Using the tolerances that are spelled out in these three manuals should help to give you a good idea as to what would need to be replaced. A little wear and slop in each part will add up to a lot of wear overall, especially when you are working in a tight and confined space, such as a governor housing. One tolerance/measurment that is not found in any of these manual is the original thickness of the actual thrust bearing (43 481 D). As new, this bearing should measure 0.406" in thickness.

The GSS-1411 Service Manual on page 2-14 it is stated that in regards to the decision of what new parts should be used to rebuild the governor assembly will be based upon the wear found and the condition of parts found: “Weights, pins, and weight carrier: Clearance in excess of 0.003 inch over that specified between pins and weights or carrier.”

Governor weight to pin clearance is 0.001” to 0.004”
Excess clearance tolerance is 0.003”
Maximum allowable clearance should be 0.007”

The recent governor that I had taken apart to rebuild, while still "fuctional", was abolutely shot internally. About the only good parts left were the housing and the pins for the governor fly-weights. The thrust sleeve (251 459 R1) was worn 0.009" undersize from the original tolerance. The top of the thrust sleeve had worn down against the snap ring ring on the shaft to the ponit where the snap ring was sitting into the thrust sleeve about another 0.009", right there is almost 0.020" in wear/play/slop. The arms of the tedder fork had grooves worn into them from the thrust bearing 0.008" deep, and the arms on the fly-weights that ride against the thrust sleeve had grooves worn about the same depth as well. If you add up these four points, you are already at 0.032" or 1/32" in wear, this wear will allow the weights to be thrown out further than normal. Check all of the parts against there original specification and use good judgement
Where you are, right now, is of absolutly no use unless you are able to get away from it, FAST!
Criswell
Cub Star
Cub Star
 
Posts: 161
Joined: Thu Sep 29, 2011 3:17 pm
Zip Code: 48180
Tractors Owned: 1952 Cub with
- 54 Blade
- 193 Moldboard Plow
- Woods 59 C-2 mower

Re: 1948 Governor

Postby PVF1799 » Tue Mar 26, 2013 8:31 pm

Thanks Criswell. I've got it fully apart now. I've mic'd a few things but have not recorded them yet.

I can tell you the brass busing is SHOT, the seal at the needle bearing is shot, the thrust bearing is 0.0004 under. The pin that holds the weight carrier on the shaft is worn in opposite sides, quite noticeably. The thrust busing on the bottom, has the normal circular wear, but there are places were it looks like it was not spinning yet the weights were still moving in and out to make the grooves in that surface - couple different locations. Where the spring attaches outside the governor housing there is play in the keys there.

Gotta travel for business tomorrow. Be back Thursday night. BTW - the manual details you provided we're awesome.

Ken
Ken
Pleasant View Farm - Est. 1799
My Restoration Project - FCUB '48 - Rex
User avatar
PVF1799
501 Club
501 Club
 
Posts: 1097
Joined: Fri Mar 15, 2013 9:46 pm
Location: Altamont, NY
Zip Code: 12009
Skype Name: ken.r.rau
Tractors Owned: 1929 Farmall Regular (Original Owner)
1947 Farmall H #265658X1
1948 Farmall Cub #21005
1955 Farmall Cub #190769
1961 Cub Cadet #16509
1975 Cub Cadet 1250H
197x IH 990 Haybine
1994 JD 5320 Diesel
Attachments: Woods 42F Fast Hitch, L38 Disc Fast Hitch, F11 Plow Fast Hitch, Land Plow, Snow Plow, Grader Blade, Planter w/Fertilizer, Cultivators, Hilling Disks, Sickle Bar Mower(2), IH 7' Sickle Bar Mower, Flail Mower and 5' International Belly Mower.
Circle of Safety Award
Circle of Safety: Y


Return to Farmall Cub

Who is online

Users browsing this forum: Arthur Dent, bythepond88, grumpy, J Dubya, LYNYRD, UK-Cub and 6 guests