This site uses cookies to maintain login information on FarmallCub.Com. Click the X in the banner upper right corner to close this notice. For more information on our privacy policy, visit this link:
Privacy Policy

NEW REGISTERED MEMBERS: Be sure to check your SPAM/JUNK folders for the activation email.

Leaking carb, sticking valves and spring is coming!

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.
User avatar
yesdeere
10+ Years
10+ Years
Posts: 20
Joined: Mon Feb 11, 2013 10:02 pm
Zip Code: 21035
Tractors Owned: 1948 Cub
04 JD 4310
85 JD 112L
69 JD 110 GT
72 JD 2520
Location: Middle of Maryland

Leaking carb, sticking valves and spring is coming!

Postby yesdeere » Tue Feb 12, 2013 12:00 pm

Hi guys, I am currently working on my 1948 cub that has been handed down to me. It was restored to look good over 30 years ago and has not had much use since. Actually I dont think it really ever got that many hours on it. It had a belly mower on it that I sold to get a set of cultivators for my garden. To me it seemed like it did not have any power. It would barely take off in 3rd gear without much feathering of the clutch.

So I decided to take the hood off and check everything out and give it a tune up. That was a while ago and like I said in my other post, Life, work and my first child kinda took over. Well my daughter is just over a year old and I have one more on the way in the fall. So if I ever want to see this great machine run and work now is my opportunity!!

I bought a carb rebuild kit, and a tune up kit (plugs,wires,cap,rotor). The wiring was in need of some love as well. Well just yesterday I decided I am way behind and need to get moving. With all the new parts on I rigged up a fuel supply (hood still off) and went to start it. First problem was the carb leaked like it did before. After some reading on here I discovered I should not have used the TSC kit. I am going to order another one from Steiner when I figure out what else I need. No big deal it will still run with a leaking carb. I spin it over and it spits a few times but no start. Sounds like I have it out of time. THis is where the fun begins. I pull the mag off and the number one plug to find tdc. Thats when I discover I have no compression on the number one cylinder. I go ahead and check the rest to find none on number three either. Two and Four are perfectly fine. Ok, I am hoping for a stick valve at this point, Pull the cover and yes the first one from the front is stuck open. I assume that is the intake valve? Same valve on the number three is stuck as well. It has its fair share of cabon build up in there, but it is eligible for social security. I worked them both free and they seem to have plenty of spring tension on them. My question is, could this have been my lack of power even though it did not seem to be missing and sounded good while running. Also could this be resolved with a good flushing with a bg oil cleaner? Or should I bite the bullet and pull the head? I am going outside now to go ahead and set the timing and see how it does. Maybe adjust the valves while I am at it. I will look for the adjustment procedure on here. Hot or cold?

I will post back this afternoon with my findings. Thank you in advance for any advice you may have. Jim

SPONSOR AD

Sponsor



Sponsor
 

User avatar
beaconlight
10+ Years
10+ Years
Posts: 7703
Joined: Thu Aug 19, 2004 2:31 pm
Zip Code: 10314
Location: NY Staten Island & Franklin

Re: Leaking carb, sticking valves and spring is coming!

Postby beaconlight » Tue Feb 12, 2013 12:57 pm

Sea Foam in the oil and the gas and work it hard and you most likely will be pleased with the difference. The work it hard will surprise you with what will come out of the exhaust. You could put a couple of tea spoons of sea foam in each cylinder and let it set a day or two before working it hard if you want.
Bill

"Life's tough.It's even tougher if you're stupid."
- John Wayne

" We hang petty thieves and appoint the great ones to public office."
- Aesop

User avatar
Denny Clayton
10+ Years
10+ Years
Posts: 4565
Joined: Wed Feb 05, 2003 1:18 pm
Zip Code: 45365
Tractors Owned: Home to "Rusty", the 2007 and 2009 Cub Tug Champion.
Circle of Safety: Y
Location: OH, Sidney

Re: Leaking carb, sticking valves and spring is coming!

Postby Denny Clayton » Tue Feb 12, 2013 1:15 pm

Definitely, adjust the valves. It is very common for them to need adjusted and be the reason for low power. Go ahead and use the Seafoam to clean up the carbon and work it hard.
'61 Lo-Boy
'60 FH Lo-Boy
'60 Lo-Boy
'57 FH Cub "Rusty" (CubTug winner 2007 & 2009)
Image
Member of Ohio Chapter 6
Circle of Safety

bythepond88
10+ Years
10+ Years
Posts: 1421
Joined: Sun Apr 30, 2006 2:54 pm
Zip Code: 60073
Circle of Safety: Y
Location: IL, Round Lake Heights

Re: Leaking carb, sticking valves and spring is coming!

Postby bythepond88 » Tue Feb 12, 2013 1:21 pm

yesdeere wrote:Hot or cold?


Adjust the valves cold.

Here is the simplified adjustment instructions. This method allows you to adjust all valves and only have to turn the engine once.

http://www.cleancomputes.com/Cub/Blue%20Ribbon%20Service%20Manuals/Valve%20Lash%20Adjusting%20Procedure.jpg
Michael Cummings
Eddie - a 1959 International Lo-Boy named after my father in law, who who bought her new.

User avatar
yesdeere
10+ Years
10+ Years
Posts: 20
Joined: Mon Feb 11, 2013 10:02 pm
Zip Code: 21035
Tractors Owned: 1948 Cub
04 JD 4310
85 JD 112L
69 JD 110 GT
72 JD 2520
Location: Middle of Maryland

Re: Leaking carb, sticking valves and spring is coming!

Postby yesdeere » Tue Feb 12, 2013 2:13 pm

Thanks for all the responses so far! I got it soaking in sea foam now. The timing is set and I am about to adjust the valves. The chart is very helpful, now I just need to know what feeler gauge to set them with. Does anyone have a preference in parts houses? I have used Steiner and Farmallparts,com and have been happy with both. I am disappointed in this carb. Thanks again

User avatar
yesdeere
10+ Years
10+ Years
Posts: 20
Joined: Mon Feb 11, 2013 10:02 pm
Zip Code: 21035
Tractors Owned: 1948 Cub
04 JD 4310
85 JD 112L
69 JD 110 GT
72 JD 2520
Location: Middle of Maryland

Re: Leaking carb, sticking valves and spring is coming!

Postby yesdeere » Tue Feb 12, 2013 2:32 pm

Wow! What a resource this sight is. I found the specs, .015 cold on the valves. And the timing at 16 degrees btdc. THe funny thing is I only have the tdc notch on my crank pulley. But I can advance on my timing light so it should not be a problem, I hope. Is that fairly common or should I get out the sandpaper and find that mark? Any way I really appreciate all the help and this sight! I apologize for the many posts and the urgency. I am just excited to see it smoke again.

User avatar
Mike in Louisiana
10+ Years
10+ Years
Posts: 7805
Joined: Tue Feb 15, 2005 10:10 am
Zip Code: 71023
Circle of Safety: Y
Location: LA, Doyline

Re: Leaking carb, sticking valves and spring is coming!

Postby Mike in Louisiana » Tue Feb 12, 2013 2:33 pm

There is a video in the how to section on timing the mag if you need it.
1975 cub (LouAnn) serial # 245946, 1941 John Deere Model H

Good judgment comes from experience,
and a lot of that comes from bad judgment. Will Rogers

Jim Becker
Team Cub
Team Cub
Posts: 17214
Joined: Sun Feb 02, 2003 2:59 pm
Zip Code: 55319
Circle of Safety: Y
Location: MN

Re: Leaking carb, sticking valves and spring is coming!

Postby Jim Becker » Tue Feb 12, 2013 2:44 pm

yesdeere wrote:Does anyone have a preference in parts houses? I have used Steiner and Farmallparts,com and have been happy with both.

Depends on what I need. My preference is either a local place I can walk into or one of the 4 advertisers listed at the bottom of this page. Between the 2 you have used, I would unhesitatingly go with Steiners.

Jim Becker
Team Cub
Team Cub
Posts: 17214
Joined: Sun Feb 02, 2003 2:59 pm
Zip Code: 55319
Circle of Safety: Y
Location: MN

Re: Leaking carb, sticking valves and spring is coming!

Postby Jim Becker » Tue Feb 12, 2013 2:57 pm

yesdeere wrote:And the timing at 16 degrees btdc. THe funny thing is I only have the tdc notch on my crank pulley.

With a mag, the advance is 13 degrees. A '48 Cub pulley only had 1 notch. Static set the timing and you should be done.

User avatar
yesdeere
10+ Years
10+ Years
Posts: 20
Joined: Mon Feb 11, 2013 10:02 pm
Zip Code: 21035
Tractors Owned: 1948 Cub
04 JD 4310
85 JD 112L
69 JD 110 GT
72 JD 2520
Location: Middle of Maryland

Re: Leaking carb, sticking valves and spring is coming!

Postby yesdeere » Tue Feb 12, 2013 10:52 pm

OK, I got her fired up and she is running like a beast. I did have a lot of crud exit the tailpipe. I want to thank everyone for the advice, it is much appreciated. The valve adjustment was a breeze, they were actually too tight and needed to be backed off. I set it at .015 per specs cold and sealed her back up. No gasket but I cleaned it up and used a good silicone(gray perm). Once I fired it up and got it smoothed out I set the timing. As was said it didn't take much. I went clockwise until it clicked in, and checked it with my light. 13 degrees per spec and purring like a kitten.

Now on to the carb. I didn't mention this earlier because I was having so many other issues, but this is my second carb. Bought from a junkyard because the original was warped and would not seal at all. I will start another thread about this since it is another issue. I am losing faith in rebuilding the carb again even though I used the TSC kit. I paid $75 for the junker and I wish I would have bought a reproduction.

AGAIN THANK YOU ALL!!!!

Pics of the work

Also a shot of her in her glory
Attachments
Kerr iPhone - 1687.jpg
Kerr iPhone - 1687.jpg (11.32 KiB) Viewed 670 times
Jan 30, 2013 - 66.jpg
Jan 30, 2013 - 66.jpg (9.43 KiB) Viewed 670 times
Jan 30, 2013 - 62.jpg
Jan 30, 2013 - 62.jpg (11.49 KiB) Viewed 670 times

User avatar
Don McCombs
Team Cub Mentor
Team Cub Mentor
Posts: 17429
Joined: Mon Feb 03, 2003 6:45 am
Zip Code: 21550
Tractors Owned: "1950 Something" Farmall Cub
1957 Farmall Cub w/FH
1977 International Cub w/FH
1978 International Cub
1948 Farmall Super A
Circle of Safety: Y
Location: MD, Deep Creek Lake

Re: Leaking carb, sticking valves and spring is coming!

Postby Don McCombs » Wed Feb 13, 2013 7:58 am

The warped carburetor can be corrected.
Don McCombs
MD, Deep Creek Lake

Image
Proud Member of Maryland Chapter 39

The best teachers are those who show you where to look, but don't tell you what to see.
A. K. Trenfor

User avatar
Mike in Louisiana
10+ Years
10+ Years
Posts: 7805
Joined: Tue Feb 15, 2005 10:10 am
Zip Code: 71023
Circle of Safety: Y
Location: LA, Doyline

Re: Leaking carb, sticking valves and spring is coming!

Postby Mike in Louisiana » Wed Feb 13, 2013 8:05 am

yesdeere wrote:

Now on to the carb. I didn't mention this earlier because I was having so many other issues, but this is my second carb. Bought from a junkyard because the original was warped and would not seal at all.


A lot of the members have a jig/tool to straighten the carb. check the how to section, there used to be on on there
1975 cub (LouAnn) serial # 245946, 1941 John Deere Model H

Good judgment comes from experience,
and a lot of that comes from bad judgment. Will Rogers

User avatar
yesdeere
10+ Years
10+ Years
Posts: 20
Joined: Mon Feb 11, 2013 10:02 pm
Zip Code: 21035
Tractors Owned: 1948 Cub
04 JD 4310
85 JD 112L
69 JD 110 GT
72 JD 2520
Location: Middle of Maryland

Re: Leaking carb, sticking valves and spring is coming!

Postby yesdeere » Wed Feb 13, 2013 2:36 pm

The carb I bought at the salvage is actually straight. I am going to see if I can tell where the leak is today. Thanks

User avatar
Don McCombs
Team Cub Mentor
Team Cub Mentor
Posts: 17429
Joined: Mon Feb 03, 2003 6:45 am
Zip Code: 21550
Tractors Owned: "1950 Something" Farmall Cub
1957 Farmall Cub w/FH
1977 International Cub w/FH
1978 International Cub
1948 Farmall Super A
Circle of Safety: Y
Location: MD, Deep Creek Lake

Re: Leaking carb, sticking valves and spring is coming!

Postby Don McCombs » Wed Feb 13, 2013 3:03 pm

PM sent.
Don McCombs
MD, Deep Creek Lake

Image
Proud Member of Maryland Chapter 39

The best teachers are those who show you where to look, but don't tell you what to see.
A. K. Trenfor

User avatar
Boss Hog
Cub Pro
Cub Pro
Posts: 10290
Joined: Mon Oct 24, 2005 8:35 pm
Zip Code: 23962
eBay ID: dmb2613
Circle of Safety: Y
Location: VA. Randolph

Re: Leaking carb, sticking valves and spring is coming!

Postby Boss Hog » Wed Feb 13, 2013 3:56 pm

I recommend the Steiner carb. kit, and get a bowl gasket from Case/ih or from TM , who is a forum sponsor, http://www.tmtractor.com/new/fl/921fp.htm, here is the link for the gasket. When you rebuild the salvage kit, put all the jets in it that come in the kit. The reason for using the Case/IH bowl gasket [ TM sells the Case/IH one ] Is the one in the kit is sub-par in my opinion.IHS825 is the Steiner part # for the good kit.http://antique-tractor-parts.steinertra ... +kit&view= is the link for the kit. I will assure you that you will be pleased with the results

Boss
IN GOD WE TRUST
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg


Return to “Farmall Cub”

Who is online

Users browsing this forum: Glen and 18 guests