New noise

The Cub Club -- Questions and answers to all of your Cub related issues.
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.
Binky Tremain
Posts: 16
Joined: Sun Aug 29, 2021 9:07 am
Zip Code: 19063
Tractors Owned: 1948 Cub
Location: Middletown, Pa

New noise

Postby Binky Tremain » Mon Aug 30, 2021 3:53 pm

Have developed a new noise…comes from up front, up high, generally when throttle is advanced. At first I thought the fan was throwing something around, or the hood had become loose and was clattering…that’s what is sounds like. Does it, stops, does it, stops. Can’t seem to narrow down the source.

Just got her a few days ago, and just started. Thanks all!

indy61
10+ Years
10+ Years
Posts: 1226
Joined: Fri Jan 25, 2008 9:02 am
Zip Code: 00000
Circle of Safety: Y

Re: New noise

Postby indy61 » Mon Aug 30, 2021 4:02 pm

Sounds like it might be a bad bearing in the generator or a bad fan hub.

Crimson Tim
5+ Years
5+ Years
Posts: 558
Joined: Wed Feb 19, 2014 1:09 pm
Zip Code: 32736
Tractors Owned: The crew:
"John", 1952 Cub
"Paul", 1951 Cub
"George", 1958 LoBoy Cub with Wagner 45 Loader
"Ringo", 1977 Cub

So far, Paul and Ringo have arrived. John and George were supposed to follow ages ago, but apparently have gone awol. Long story.
Circle of Safety: Y

Re: New noise

Postby Crimson Tim » Mon Aug 30, 2021 4:11 pm

Right side or left side?
Has your fan been oiled recently? Fan shroud loose? Radiator cap askew? Can the fan touch the shroud? Any hood or dogleg fasteners missing? If it still has a generator, those still want a few drops of oil periodically, don’t they? There’s not much stuff high and forward, so it doesn’t seem like it should be too difficult to find. Have you heard the trick about using tubing as a stethoscope to pinpoint where sounds come from?
Also, post a video. Maybe someone will recognize the sound.

Edit: check engine oil and hydraulic fluid and function. Maybe your hydraulic pump drive gear has come loose and is about to fall off the shaft.

Binky Tremain
Posts: 16
Joined: Sun Aug 29, 2021 9:07 am
Zip Code: 19063
Tractors Owned: 1948 Cub
Location: Middletown, Pa

Re: New noise

Postby Binky Tremain » Mon Aug 30, 2021 4:50 pm

Left side, have not oiled fan yet (can’t find screw, unless it’s been painted over). Everything seems tight, nothing missing. Almost sounds like the clattering of the exhaust flapper, but continues when held open. Actually, I can hear it when listening atop the exhaust. Took it off and shook it, but nothing dropped out.

Still trying to pinpoint.

Binky Tremain
Posts: 16
Joined: Sun Aug 29, 2021 9:07 am
Zip Code: 19063
Tractors Owned: 1948 Cub
Location: Middletown, Pa

Re: New noise

Postby Binky Tremain » Mon Aug 30, 2021 5:13 pm

Sor…Have been converted to 12 volts, and have no hydraulics.

User avatar
Pap
Cub Star!!
Cub Star!!
Posts: 357
Joined: Mon Jun 07, 2021 8:43 pm
Zip Code: 38401
Tractors Owned: 1947 Cub ( Err Err )
I could not say tractor when I was 2 years old so I called it Err Err.

I loved this tractor then and I still love it now.
Circle of Safety: Y
Location: Columbia, Tennessee

Re: New noise

Postby Pap » Mon Aug 30, 2021 6:07 pm

Hey Binky welcome to the forum. Sounds like you got one of those things that makes it fun to have a Cub.
I'm not going to suggest anything. Sounds like indy61 and Crimson Tim already had some good things for you to do and check.
Good luck I hope that you find out your problem.
Are We Having Fun Yet ? :D
'47 cub ( Err Err )

CharlieK
10+ Years
10+ Years
Posts: 510
Joined: Sun Apr 10, 2005 9:25 pm
Zip Code: 40165
Location: bullitt county, kentucky

Re: New noise

Postby CharlieK » Mon Aug 30, 2021 6:44 pm

on my old antiques I was told to turn up the radio
get er done; life is good

User avatar
Pap
Cub Star!!
Cub Star!!
Posts: 357
Joined: Mon Jun 07, 2021 8:43 pm
Zip Code: 38401
Tractors Owned: 1947 Cub ( Err Err )
I could not say tractor when I was 2 years old so I called it Err Err.

I loved this tractor then and I still love it now.
Circle of Safety: Y
Location: Columbia, Tennessee

Re: New noise

Postby Pap » Mon Aug 30, 2021 6:53 pm

Yup :lol:
Are We Having Fun Yet ? :D
'47 cub ( Err Err )

tst
10+ Years
10+ Years
Posts: 4429
Joined: Tue Jan 12, 2010 2:08 pm
Zip Code: 12514
Circle of Safety: Y

Re: New noise

Postby tst » Mon Aug 30, 2021 7:23 pm

take the belts off and run it to see if the noise is gone, if so its the fan or generator

Crimson Tim
5+ Years
5+ Years
Posts: 558
Joined: Wed Feb 19, 2014 1:09 pm
Zip Code: 32736
Tractors Owned: The crew:
"John", 1952 Cub
"Paul", 1951 Cub
"George", 1958 LoBoy Cub with Wagner 45 Loader
"Ringo", 1977 Cub

So far, Paul and Ringo have arrived. John and George were supposed to follow ages ago, but apparently have gone awol. Long story.
Circle of Safety: Y

Re: New noise

Postby Crimson Tim » Mon Aug 30, 2021 9:22 pm

Walnuts down the exhaust stack?

User avatar
Glen
5+ Years
5+ Years
Posts: 5116
Joined: Mon Mar 19, 2012 7:33 pm
Zip Code: 00000
Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
Circle of Safety: Y
Location: Wa.

Re: New noise

Postby Glen » Tue Aug 31, 2021 1:04 am

Hi,
The Cub owner's manual shows how to oil the fan hub, if you need the info.
You didn't say what year Cub you have.

If the hub doesn't have an oil screw, it might have a newer replacement fan assembly, some or all of those have sealed bearings, there isn't an oil screw in the hub on those, they have said on here before. :)

Binky Tremain
Posts: 16
Joined: Sun Aug 29, 2021 9:07 am
Zip Code: 19063
Tractors Owned: 1948 Cub
Location: Middletown, Pa

Re: New noise

Postby Binky Tremain » Tue Aug 31, 2021 5:03 am

It’s a 1948. I have the service and owners manuals coming in Friday.

I’ve checked a number of times and even scraped paint on hub…no screw. I’m new to this, but fan replacement doesn’t seem too bad. Trying to capture it on video.

Cubfriend
5+ Years
5+ Years
Posts: 915
Joined: Sat Jan 28, 2012 3:13 pm
Zip Code: 68803
Tractors Owned: 1948 Cub, Kittie; 1948 Cub, Harold; 1949 Cub, 49er; 1951 Cub, Tucker; 1951 Cub, Homely; 1956 Cub High Crop; 1957 Cub Loboy; 57 Cub Loboy w/fasthitch + 194 plow; 1958 Cub LoBoy w/FH, Popeye; 1961 Cub, Beater; #1-1962 Cub Loboy Dually (Originally Orange) w/Foot Throttle; #2-1962 Cub Loboy Dually (Originally Orange) w/Foot throttle; Yellow 1963 Cub Loboy and blade; 1970 Cub, Cubbie; and 5 other Cubs in various stages of disaasembly and disrepair; 1962 Cub Cadet Original; 2 other Cub Cadet Originals; Cub Cadet 100; Cub Cadet 124 w/Creeper; Cub Cadet 147; 2 Cub Cadet 129's; Cub Cadet 149; 1948 Allis Chalmers C w/single frontwheel; 1944 Farmall H w/Tokhiem Cab; 2 One Point Fasthitch Carriers; 2-#100 Fasthitch Rear Blade; 2 Sets Cub 144 Cultivators; 2 Sets Cub #252 Cultivators; 3 Cub #193 Mouldboard Plows; 1 Cub #193 Slatted Plow; 1 1948 Cub-54 Snow Plow; 3 Cub-54 49-5 Snow Plows; Cub #6 Tool Bar w/Disc Blades & Middlebuster. 2-#105 sickle mowers, #252 disc plow
Circle of Safety: Y
Location: Grand Island, Nebraska

Re: New noise

Postby Cubfriend » Tue Aug 31, 2021 6:55 am

Is the nut on the alternator loose allowing the alternator fan to wobble?
Frank

Binky Tremain
Posts: 16
Joined: Sun Aug 29, 2021 9:07 am
Zip Code: 19063
Tractors Owned: 1948 Cub
Location: Middletown, Pa

Video

Postby Binky Tremain » Tue Aug 31, 2021 4:42 pm

Having trouble attaching video. Have posted it on facebooks Farmal cub repair and maintenance page.

tst
10+ Years
10+ Years
Posts: 4429
Joined: Tue Jan 12, 2010 2:08 pm
Zip Code: 12514
Circle of Safety: Y

Re: New noise

Postby tst » Tue Aug 31, 2021 4:54 pm

they did make a replacement fan with sealed bearings so you may have one of those if there is no screw in the hub


  • Similar Topics
    Replies
    Views
    Last post

Return to “Farmall Cub”

Who is online

Users browsing this forum: Bill V in Md, python-requests [Bot] and 5 guests