Condensation with rain cap.

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.
REP
Posts: 5
Joined: Sun Feb 14, 2021 10:50 pm
Zip Code: 32583

Condensation with rain cap.

Postby REP » Mon Feb 15, 2021 7:56 pm

I am new, first post.
Just got a 49' that has been sitting since 91', got her running pretty well. Engine was locked up, stuck valves, and all related tuning, fluids and tweaking. For now using 12V battery just for starting (no charging for the moment) and using magneto for spark. It had Champion D16's in it so replace with same, did not give the spark I wanted. Switched to D21's and wow what difference.
Wish I had looked at this site before I got the tractor, made mistake of getting carb kit for TSC, piece of trash. Have gotten lots of info from you and enjoy the read, lots of knowledge here, and I am sure most of it is hard knock smarts.
Sorry to be so long winded.
To my topic, thought a rain cap on my straight pipe would be cool. After running and letting cool, noticed a very light amount of moisture coming out pipe. I don't like it. Any thoughts?
Thanks in advance
Randy

Eugene
Team Cub Mentor
Team Cub Mentor
Posts: 19660
Joined: Fri Jul 02, 2004 9:52 pm
Zip Code: 65051
Circle of Safety: Y
Location: Mo. Linn

Re: Condensation with rain cap.

Postby Eugene » Mon Feb 15, 2021 8:39 pm

Welcome.

Define moisture; drops, mist, fumes, smell, color, length of time?

It takes a few seconds for the engine and manifold to heat up enough to burn off any condensation.

The rain cap is to prevent rain water from entering the exhaust pipe. Won't prevent condensation.
I have an excuse. CRS.

User avatar
Peter Person
Cub Pro
Cub Pro
Posts: 4306
Joined: Fri Nov 18, 2005 4:27 pm
Zip Code: 06076
Circle of Safety: Y
Location: CT, Stafford Springs

Re: Condensation with rain cap.

Postby Peter Person » Mon Feb 15, 2021 8:41 pm

Randy,
Welcome to the forum.
Since the tractor sat for 30 years and it sounds like you had to do a fair amount of work to get it loose and running, did you prime the oil pump?
1957 Farmall Cub "Emory", Fast-Hitch, L-F194 Plow & Colter, L-38 Disc Harrow, Cub-54A Blade, Cub-22 Sickle Bar Mower, IH 100 Blade

Image

Circle of Safety

SamsFarm
501 Club
501 Club
Posts: 1434
Joined: Wed Jan 20, 2021 8:21 pm
Zip Code: 44410
Tractors Owned: 1968 Cub Fast Hitch
LF-1 Platform Carrier
144 Cultivators
L-F194 Plow(s)
F38 Disk
L-F3 Spring Tooth Harrow
Fast Hitch CS Bell 60 Grain Mill
Home Made Fast Hitch Potato Plow
54A Blade

Couple 1948 Cubs
172 Runner Planter
53 Fertilizer
Cub-3 Field Cultivator
Cub-189 Two Way Plow
Cub-22 Sickle Bar Mower
Mechanical Transplanter with side mount barrel (needs a fast hitch adapter) :)

Misc Belly Mowers

Wish List
International 100 Fast Hitch Blade
Mott Fast Hitch Flail Mower

Wish Wish Wish List
Fast Hitch Rotary Hoe
4E hammer mill
Location: Ne Ohio

Re: Condensation with rain cap.

Postby SamsFarm » Mon Feb 15, 2021 8:51 pm

I think what you are seeing is the condensation from warm exhaust going through the cold pipe / muffler, until your muffler warmes up to operating temperature!

If your tractor is sleeping outside and you want to be sure that rain is not getting in there, throw a bucket or can over the exhaust stack.

See what happens!

User avatar
Stanton
Team Cub
Team Cub
Posts: 7605
Joined: Mon Jun 22, 2009 6:56 am
Zip Code: 64070
Tractors Owned: 1942 Farmall AV, serial #87025
1947 Farmall Circle Cub, serial #2116
1948 Farmall Cub, serial #46066
Circle of Safety: Y
Location: Lone Jack, MO

Re: Condensation with rain cap.

Postby Stanton » Tue Feb 16, 2021 7:28 am

Welcome to the Forum, Randy! You stated that you had run the tractor, then let it cool. How long did you let it run and did it get up to operating temp? You live in the panhandle of FL, so a very humid environment anyway. Where was the moisture noticed, between the muffler and exhaust pipe or at the top of the muffler near the rain cap?

Anyway, take some time and read through a few threads to acquaint yourself with the Forum:

Don't know if you have any of the manuals to your Cub, but after your 2nd post on the Forum, you'll have access to the all the PDF Manuals on this site. There’s a few ways to do that:
  • From a desktop or laptop, go to "Quick Links" in the upper left corner of your screen. Hit that and a pull-down appears where you'll find "PDF Manuals".
  • You can also go to “Cub Info” in the upper toolbar, then hit “Rudi’s Manuals”. From there, you can access a variety of information.
  • If you're using a phone, go to the "Links Directory" (second category down the main page). Once in "Links Directory" , scroll down to the second section "Tractor Parts & Manuals" and you'll find them there.

You'll be able to download an Owner's Manual (very strongly recommended) and any service manuals that interest you. Implement Manuals are also available.

We’d encourage you to take the Safety Test located in the Safety Forum: http://farmallcub.com/phpBB2/viewtopic.php?f=33&t=68084

There are a lot of good threads dealing with Cub repair and maintenance in the How To Forum. Located here: http://farmallcub.com/phpBB2/viewforum.php?f=11

Take some pictures of your tractor and post them, we’d like to see them.

Remember:
• When you have a specific question, start a new thread in the appropriate sub-forum.
• Before posting, use the Preview button before hitting Submit--it'll show you exactly what your post will look like, including pictures.
• When adding your comments to a thread, be sure to look at the date of the last poster. If it’s more than a 6 months old, the posters are probably not going to see it. Consider starting a new thread.

Glad you joined us.

:tractor:
Stanton
Image Circle of Safety

Gary Dotson
Team Cub Mentor
Team Cub Mentor
Posts: 4969
Joined: Thu Aug 03, 2006 6:20 am
Zip Code: 43358
Tractors Owned: 48 Cub Diesel (Cubota)
53 Cockshutt 20 restored (Shooter)
52 Cockshutt 20 unrestored
47 Leader "B" (Herckie)
49 Leader "D" (Princess)
49 Leader "D" very rough
48 Leader "D" unrestored
Kubota B6200E
Kubota B6200HST
Kubota B8200HST-D
Circle of Safety: Y
Location: OH West Mansfield

Re: Condensation with rain cap.

Postby Gary Dotson » Tue Feb 16, 2021 7:42 am

I don't think your condensation has anything to do with the rain cap, I've always ran them on any vertical exhaust tractors with no issues. It probably has more to do with environment. Cold metal becomes an excellent condenser. I don't know how much you've run the tractor but I'd run it as hard as you can to fully warm it up, cover part of the radiator, if it's cold, to get the moisture burned out well, then see what you get. Also, welcome to the group!

REP
Posts: 5
Joined: Sun Feb 14, 2021 10:50 pm
Zip Code: 32583

Re: Condensation with rain cap.

Postby REP » Tue Feb 16, 2021 9:39 am

Thanks for all info and welcomes.
Very little moisture blowing from inside wall of pipe, for 30 seconds or so, when cap opens. Just don't want moisture settling in manifold/engine, causing harm.
Inside barn, just like look of cap blowing open.
Total run time so far is about 2 hours. Oil pressure up to 45 psi on gauge that reads 18 with engine off. (need new one)
Again thanks to all

SamsFarm
501 Club
501 Club
Posts: 1434
Joined: Wed Jan 20, 2021 8:21 pm
Zip Code: 44410
Tractors Owned: 1968 Cub Fast Hitch
LF-1 Platform Carrier
144 Cultivators
L-F194 Plow(s)
F38 Disk
L-F3 Spring Tooth Harrow
Fast Hitch CS Bell 60 Grain Mill
Home Made Fast Hitch Potato Plow
54A Blade

Couple 1948 Cubs
172 Runner Planter
53 Fertilizer
Cub-3 Field Cultivator
Cub-189 Two Way Plow
Cub-22 Sickle Bar Mower
Mechanical Transplanter with side mount barrel (needs a fast hitch adapter) :)

Misc Belly Mowers

Wish List
International 100 Fast Hitch Blade
Mott Fast Hitch Flail Mower

Wish Wish Wish List
Fast Hitch Rotary Hoe
4E hammer mill
Location: Ne Ohio

Re: Condensation with rain cap.

Postby SamsFarm » Tue Feb 16, 2021 10:17 am

I think you'll be alright.

Sounds like normal operation.

Next time you start your car or truck to preheat it while it is cold outside, go look at the exhaust outlet.
It will probably be steaming and dripping some!

Happy tractoring!

User avatar
Barnyard
Team Cub
Team Cub
Posts: 23546
Joined: Tue Aug 07, 2007 3:39 pm
Zip Code: 45030
Tractors Owned: At This Time
40 Farmall Cubs (Round Hood)
2 Farmall Cub (Square Hood)
2 IH Cubs (Square Hood)
5 Lo-Boys (Round Hood)
2 Lo-Boys (Square Hood)
2 Farmall 404's
1 Farmall H
1 Ferguson 20
1 Cub Cadet 125
1 Kubota B-7100
Circle of Safety: Y
Location: OH, New Haven (Hamilton County)

Re: Condensation with rain cap.

Postby Barnyard » Tue Feb 16, 2021 10:28 am

Agree with Gary on the exhaust. There is no need for a bucket or bean can on the exhaust as long as you have a rain cap and the weep hole on the bottom of the manifold is not clogged you should have no problem with moisture going into the engine.
There are two ways to get enough Cubs. One is to continue to accumulate more and more. The other is to desire less.

Circle of Safety

User avatar
Peter Person
Cub Pro
Cub Pro
Posts: 4306
Joined: Fri Nov 18, 2005 4:27 pm
Zip Code: 06076
Circle of Safety: Y
Location: CT, Stafford Springs

Re: Condensation with rain cap.

Postby Peter Person » Tue Feb 16, 2021 10:30 am

REP wrote:Thanks for all info and welcomes.
Very little moisture blowing from inside wall of pipe, for 30 seconds or so, when cap opens. Just don't want moisture settling in manifold/engine, causing harm.
Inside barn, just like look of cap blowing open.
Total run time so far is about 2 hours. Oil pressure up to 45 psi on gauge that reads 18 with engine off. (need new one)
Again thanks to all


There is a drain hole in the exhaust manifold that often gets plugged by bugs or a previous owner with a screw.
On the first page of this thread, Dale posted some photos of the drain hole.
http://www.farmallcub.com/phpBB2/viewtopic.php?f=1&t=108432&p=860324&hilit=exhaust+manifold+drain+hole#p860324
1957 Farmall Cub "Emory", Fast-Hitch, L-F194 Plow & Colter, L-38 Disc Harrow, Cub-54A Blade, Cub-22 Sickle Bar Mower, IH 100 Blade

Image

Circle of Safety

User avatar
Dale Finch
10+ Years
10+ Years
Posts: 6070
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Condensation with rain cap.

Postby Dale Finch » Tue Feb 16, 2021 10:36 am

Barnyard wrote:Agree with Gary on the exhaust. There is no need for a bucket or bean can on the exhaust as long as you have a rain cap and the weep hole on the bottom of the manifold is not clogged you should have no problem with moisture going into the engine.

In case someone is not familiar with this drain hole (I've seen some where a PO has plugged it with a screw), here is an old post with a good photo of it:

http://www.farmallcub.com/phpBB2/viewtopic.php?t=96496

Wow! Peter types fast!!!
Dale Finch
Image
Circle of Safety

REP
Posts: 5
Joined: Sun Feb 14, 2021 10:50 pm
Zip Code: 32583

Re: Condensation with rain cap.

Postby REP » Tue Feb 16, 2021 10:47 am

Wee hole? Was not aware. That's the info I was looking for. Great picture link.
Very rusty, will look for that.
Makes me feel better knowing moisture has an escape, very little moisture but don't want to cause a problem.
Thanks

REP
Posts: 5
Joined: Sun Feb 14, 2021 10:50 pm
Zip Code: 32583

Re: Condensation with rain cap.

Postby REP » Tue Feb 16, 2021 7:49 pm

Found the weep hole in manifold. Not an easy find through all the rust. Used small drill bit, turning by hand and pliers and got through, then went to larger bit. Small amount of exhaust exits the weep hole. Very pleased. You guys are awesome, with suggestions, thoughts and the links to pictures for Peter and Dale.
Could not have found without pictures, so much rust.
Again thanks for all the help.
Great group.

User avatar
Stanton
Team Cub
Team Cub
Posts: 7605
Joined: Mon Jun 22, 2009 6:56 am
Zip Code: 64070
Tractors Owned: 1942 Farmall AV, serial #87025
1947 Farmall Circle Cub, serial #2116
1948 Farmall Cub, serial #46066
Circle of Safety: Y
Location: Lone Jack, MO

Re: Condensation with rain cap.

Postby Stanton » Wed Feb 17, 2021 7:55 am

REP wrote:Found the weep hole in manifold. Not an easy find through all the rust. Used small drill bit, turning by hand and pliers and got through, then went to larger bit. Small amount of exhaust exits the weep hole. Very pleased. You guys are awesome, with suggestions, thoughts and the links to pictures for Peter and Dale.
Could not have found without pictures, so much rust.
Again thanks for all the help.
Great group.


That's why we're here. Glad you got it done to your satisfaction.
Stanton
Image Circle of Safety

halftonstude
Cub Star
Cub Star
Posts: 148
Joined: Sun Sep 30, 2018 3:09 pm
Zip Code: 06482
Circle of Safety: Y

Re: Condensation with rain cap.

Postby halftonstude » Thu Feb 18, 2021 8:33 am

I have a cap and left the weep hole rusted shut I was concerned the exhaust would blow out and make a mess. After I first rebuilt my engine during a complete restoration I noticed condensation all over; dipstick, breather, it always drips out the bottom of the muffler for a few after startup, even the oil had a little milky shakey look. I ran it a couple hours in the driveway changed the oil but to little avail. When I started using it to rake 200 acres it disappeared. Still the little drip from the muffler at startup but after it works hard for a bit it cleans right up and dries out. The experts here are full of valuable time achieved and time proven wisdom I’ve learned to trust. I guess I could seal the muffler to the pipe but other than that I have no concerns or worries about the lack of condensation elsewhere now. Just needs to get out and get working to keep the insides dry. I am surprised there was as much as there was... you’d think a hot engine wouldn’t keep moisture like that. Well it needed to get a little hotter..
Welcome!
C


  • Similar Topics
    Replies
    Views
    Last post

Return to “Farmall Cub”

Who is online

Users browsing this forum: inairam, Monk89 and 2 guests