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.
Weeping from cylinder head
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.
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.
-
- 10+ Years
- Posts: 29
- Joined: Thu Oct 18, 2012 2:38 am
- Zip Code: GU52
Weeping from cylinder head
Bad news from Andy here in the UK.
Slight weeping of water from the cylinder head on my 'restored' '48 Cub is of some concern! This includes slight bubbling around one or two spark plugs. Symptoms dissipate once the old girl is nice 'n hot - presumably as things expand and take up the slack.
I've tried dosing with Bars Leaks (a trusty liquid remedy available here) but with limited success.
Guess I know what the response will be - but make my day and tell me there is an alternative to purchasing a new cylinder head.
Thanks in advance as always for any help.
By the way my last trip to France to acquire a second '48 Cub with plow and cultivator was fruitless - heap of junk - but I did retrieve the cultivator. Photos can be deceptive - lesson learnt the hard way. Should have listened to Mrs Mac!
Andy
Slight weeping of water from the cylinder head on my 'restored' '48 Cub is of some concern! This includes slight bubbling around one or two spark plugs. Symptoms dissipate once the old girl is nice 'n hot - presumably as things expand and take up the slack.
I've tried dosing with Bars Leaks (a trusty liquid remedy available here) but with limited success.
Guess I know what the response will be - but make my day and tell me there is an alternative to purchasing a new cylinder head.
Thanks in advance as always for any help.
By the way my last trip to France to acquire a second '48 Cub with plow and cultivator was fruitless - heap of junk - but I did retrieve the cultivator. Photos can be deceptive - lesson learnt the hard way. Should have listened to Mrs Mac!
Andy
-
- 10+ Years
- Posts: 348
- Joined: Wed Mar 16, 2011 3:31 am
- Zip Code: 21853
- Circle of Safety: Y
Re: Weeping from cylinder head
Try retorqing the head
-
- Team Cub Mentor
- Posts: 20393
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: Weeping from cylinder head
Was cylinder head recently removed? Head bolts require a sealant applied to threads to keep coolant from seeping past the head bolts.
Get engine hot to evaporate accumulated coolant. Shut off engine, sprinkle flour (baking type) on head. Watch the flour for indications of coolant source. I would remove the hood to get a closer look for the source of the seep.
Get engine hot to evaporate accumulated coolant. Shut off engine, sprinkle flour (baking type) on head. Watch the flour for indications of coolant source. I would remove the hood to get a closer look for the source of the seep.
I have an excuse. CRS.
-
- Cub Pro
- Posts: 7760
- 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: Weeping from cylinder head
If retorquing the head bolts doesn't solve it and you find the source of the leak (i.e. gap in head gasket), you may not need a new head, just to re-deck (rather, surface plane) the existing head to flatten it out. A machine shop will be able to do this for you. Then you would need a new head gasket, sealant applied to the gasket and the head bolt threads (as Eugene stated above).
Wish you the best!
Wish you the best!
-
- 10+ Years
- Posts: 59
- Joined: Thu Mar 07, 2013 7:35 pm
- Zip Code: 74604
Re: Weeping from cylinder head
You might want to check outlet net on head also it may need to be surfaced to.
Coolant may be leaking from that location and getting into sparkplug holes and running down front of head and wicking along gasket making it look as if the head is seeping,Had one do this .
Just a thought
Coolant may be leaking from that location and getting into sparkplug holes and running down front of head and wicking along gasket making it look as if the head is seeping,Had one do this .
Just a thought
-
- Cub Pro
- Posts: 23701
- Joined: Sun Feb 02, 2003 2:09 pm
- Zip Code: 63664
- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
Re: Weeping from cylinder head
coolant bubbling around spark plugs may indicate possibly it is leaking down around them from above, such as a radiator hose or outlet neck, and plug is not sealing good so it is getting a little hot gas leakage.
If you are not part of the solution,
you are part of the problem!!!
you are part of the problem!!!
-
- 10+ Years
- Posts: 69
- Joined: Wed Apr 25, 2007 10:52 am
- Zip Code: 16218
- Location: Kittanning, PA
Re: Weeping from cylinder head
I have had trouble with leaking head gaskets on a 6 cylinder motor I rebuilt once. On the third head gasket replacment I used a copper spray to aide in sealing the gasket. That took care of the problem. So as an added insurance I would recommend spraying the head gasked with permatex copper sealer.
Steve
1962 Cub Lo-boy restored w/60 woods deck and snow plow
1972 Standard Cub Original w/fast hitch w/snowplow
1975 Cub 185
1969 Cub 154 w/60" deck and snow plow
Fast hitch plow
42FH woods mower
1962 Cub Lo-boy restored w/60 woods deck and snow plow
1972 Standard Cub Original w/fast hitch w/snowplow
1975 Cub 185
1969 Cub 154 w/60" deck and snow plow
Fast hitch plow
42FH woods mower
-
- Cub Pro
- Posts: 23701
- Joined: Sun Feb 02, 2003 2:09 pm
- Zip Code: 63664
- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
Re: Weeping from cylinder head
spgeid, many years ago before there was Copper Coat we used grease from a grease gun on the head gaskets, but Copper Coat works better and is less messy. I use it on manifold gaskets too.
If you are not part of the solution,
you are part of the problem!!!
you are part of the problem!!!
-
- 10+ Years
- Posts: 29
- Joined: Thu Oct 18, 2012 2:38 am
- Zip Code: GU52
Re: Weeping from cylinder head
Thanks very much for the helpful input. I will try the various remedies when time allows.
My concern is that it looks as though there may be water seeping through the casting on the top of the head which suggests to me corrosion and breaching of the water jacket. Hence the fear a new cylinder head may be required.
Anyone experienced this?
Andy
My concern is that it looks as though there may be water seeping through the casting on the top of the head which suggests to me corrosion and breaching of the water jacket. Hence the fear a new cylinder head may be required.
Anyone experienced this?
Andy
-
- Cub Pro
- Posts: 2779
- Joined: Sun Jul 01, 2007 10:07 pm
- Zip Code: 29518
- Circle of Safety: Y
- Location: SC, Cades 29518
Re: Weeping from cylinder head
There is a water jacket in the head, that is sometimes damaged by freezing. I have never heard of a flat head allowing water to seep through the casting, that is quite a thickness, and would indicate quite a bit of porosity or damage. I truly suspect the water is coming from another source and collecting in the spark plug depressions. The fit of the radiator hose (top) on that filler neck is always a bit troublesome, and requires precision placement and tightening of the clamp.
Rick Spivey
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
-
- Cub Pro
- Posts: 23701
- Joined: Sun Feb 02, 2003 2:09 pm
- Zip Code: 63664
- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
Re: Weeping from cylinder head
I have seen a couple of heads that were cracked right where the water outlet bolts to the head. No sign of freezing anywhere, and the metal is pretty thin there. I have one laying in my scrap pile at present.
If you are not part of the solution,
you are part of the problem!!!
you are part of the problem!!!
-
- Cub Pro
- Posts: 2779
- Joined: Sun Jul 01, 2007 10:07 pm
- Zip Code: 29518
- Circle of Safety: Y
- Location: SC, Cades 29518
Re: Weeping from cylinder head
I agree with John that if it is bubbling around one or more spark plugs, those plugs may not be fully seated. These Cubs sometimes get hard to make the plug seat fully, due to carbon and corrosion. A thread chaser will help, if you don't mind the crap going into the cylinder....usually doesn't hurt, and will blow out next time you crank it.
Rick Spivey
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)
-
- Cub Pro
- Posts: 28706
- Joined: Sun Feb 02, 2003 8:37 pm
- Zip Code: E1A7J3
- Skype Name: R.H. "Rudi" Saueracker, SSM
- Tractors Owned: 1947 Cub "Granny"
1948 Cub "Ellie-Mae"
1968 Cub Lo-Boy
Dad's Putt-Putt
IH 129 CC
McCormick 100 Manure Spreader
McCormick 100-H Manure Spreader
Post Hole Digger
M-H #1 Potato Digger - Circle of Safety: Y
- Twitter ID: Rudi Saueracker, SSM
- Location: NB Dieppe, Canada
Re: Weeping from cylinder head
Andy:
The head on Ellie was giving me fits. After the 2nd attempt at getting the weeping stopped, I finally saw the hairline crack between #1 and #2 spark plug. Found a used head in good condition on I think it was and that was that. Got a new head gasket, put the replacement head on ... end of weeping issue.
From what you describe that is exactly what I found. Sorry no better news to give .. but as they say .. that is the rest of the story ...
search results for a Farmall Cub Engine Head
The head on Ellie was giving me fits. After the 2nd attempt at getting the weeping stopped, I finally saw the hairline crack between #1 and #2 spark plug. Found a used head in good condition on I think it was and that was that. Got a new head gasket, put the replacement head on ... end of weeping issue.
From what you describe that is exactly what I found. Sorry no better news to give .. but as they say .. that is the rest of the story ...
search results for a Farmall Cub Engine Head
Confusion breeds Discussion which breeds Knowledge which breeds Confidence which breeds Friendship
-
- 10+ Years
- Posts: 29
- Joined: Thu Oct 18, 2012 2:38 am
- Zip Code: GU52
Re: Weeping from cylinder head
Thanks Guys - yup I think Rudi has hit the nail on the head - water definitely seems to weeping through the casting which suggests cracks and corrosion. The top of the head also looks uneven as though it has been bodged with weld or filler then made pretty with paint - another lesson learnt the hard way.
Guess I'll have to bite the bullet and source a good replacement cylinder head. Trouble is postage to UK is near as dammit twice the price of the head! Have spoken to an agent in UK who can hopefully have one sent over from US with bulk order.
Do we know if new heads are produced in the US or in a back street in Beijing? Is it best to source a good original?
Thanks and will keep you posted. Andy
Guess I'll have to bite the bullet and source a good replacement cylinder head. Trouble is postage to UK is near as dammit twice the price of the head! Have spoken to an agent in UK who can hopefully have one sent over from US with bulk order.
Do we know if new heads are produced in the US or in a back street in Beijing? Is it best to source a good original?
Thanks and will keep you posted. Andy
-
- Team Cub Mentor
- Posts: 20393
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: Weeping from cylinder head
For sale wanted section of this site. Several folks sell used Cub parts and ship overseas.AndyMac wrote:Guess I'll have to bite the bullet and source a good replacement cylinder head. Trouble is postage to UK is near as dammit twice the price of the head!
I have an excuse. CRS.
-
- Similar Topics
- Replies
- Views
- Last post
-
- 15
- 720
-
by tgrist
Sun Jan 28, 2024 9:41 am
-
-
Replacing bottom gasket on touch control cylinder block Attachment(s)
by Gene Rogers » Mon Feb 07, 2022 11:35 am » in Farmall Cub - 5
- 343
-
by Ken (48 Cub)
Tue Feb 08, 2022 9:14 am
-
-
- 2
- 184
-
by Stoffregen Motorsports
Wed Sep 06, 2023 2:40 pm
-
- 28
- 1055
-
by Don McCombs
Mon Mar 07, 2022 11:09 pm
-
- 12
- 396
-
by Clemsonfor
Fri Feb 18, 2022 5:20 pm
Who is online
Users browsing this forum: No registered users and 2 guests