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.
Head gasket question
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: 185
- Joined: Thu Jul 08, 2004 6:00 pm
Head gasket question
I just replaced the head gasket on my 49. I torqued in steps to 45 pounds. Idled it half throttle for about 3 hrs and retorqued to 45. Now going to let the engine run 12 hrs over the next two or three days and then retorque. This will be done at half throttle. Well this after I pulled dipstick and saw some whitish foam. Yuck!! I did use thread sealant on new head bolts. And also had a engine shop magnaflux and check for warpage. Wonder if this can be somewhat normal til the final torque down and head gets seated. I did recall just this afternoon that I used a new head gasket from a set I bought for the cubs original engine and since buying this set I had bought and installed a engine from a numbered engine, a 1976 I believe. Should this be ok or cause me a problem.
Last edited by Dan Stuckey on Wed Mar 27, 2013 5:04 pm, edited 2 times in total.
-
- Cub Pro
- Posts: 2779
- Joined: Sun Jul 01, 2007 10:07 pm
- Zip Code: 29518
- Circle of Safety: Y
- Location: SC, Cades 29518
Re: Head gasket question
Your whitish foam may just be condensate, and not indicative of a leak. Wait and see....
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)
-
- Team Cub
- Posts: 9533
- Joined: Wed Jul 26, 2006 10:50 am
- Zip Code: 44057
- Tractors Owned: 57 F-Cub - Dad & Mom's Cub
77 F-Cub - Red Long Stripe - Circle of Safety: Y
- Location: OH, Madison
Re: Head gasket question
Your foam is, in all likelyhood, condensate from running the Cub without a load. Your Cub did not get hot enough to boil the condensate out of the oil. Work hard or cover part of the radiator to raise the temp so as to make it hot enough to boil off the water through the crankcase breather.
-
- 10+ Years
- Posts: 804
- Joined: Tue Apr 17, 2012 7:55 pm
- Zip Code: 47119
- Skype Name: ntrenn
- Tractors Owned: 63 Cub 221833 in family since '69
65 Lo-boy 19648 with an un-stuck #4 - it lives!!!
144 Cultivators with disc hillers
193 Plow
42C mower
59L mower mounted on the Fcub
23A Disc - lost possession - Circle of Safety: Y
- Location: Indiana
Re: Head gasket question
I agree with the others - the white stuff is because it didn't get hot.
But on the subject of 'breaking in' a head gasket, my experience with this engine, although limited, is very different than the flat head Ford 8N engine. You had to retorque that engine. I put my parts cub back together with aviation sealer on the bolts with a dry head gasket - torqued in steps to 40 ft-lbs - grade 8 bolts with hardened washers - and just put it back in service. No break in. No retorquing. It's got about 10-15 hours on it since the install and no signs of an issue yet.
But on the subject of 'breaking in' a head gasket, my experience with this engine, although limited, is very different than the flat head Ford 8N engine. You had to retorque that engine. I put my parts cub back together with aviation sealer on the bolts with a dry head gasket - torqued in steps to 40 ft-lbs - grade 8 bolts with hardened washers - and just put it back in service. No break in. No retorquing. It's got about 10-15 hours on it since the install and no signs of an issue yet.
-
- 10+ Years
- Posts: 185
- Joined: Thu Jul 08, 2004 6:00 pm
Re: Head gasket question
Thanks guys. That seems very very possible and logical. Radiator is covered rt now and Cub is purring. I am glad to take the time to go through the re-torquing process. The first torque after three hr run time allowed me to turn the bolt almost a full quarter turn before the click.
-
- Similar Topics
- Replies
- Views
- Last post
-
- 4
- 263
-
by pett3227b
Wed Nov 01, 2023 12:36 pm
-
- 7
- 465
-
by Clemsonfor
Mon Sep 13, 2021 4:57 pm
-
- 3
- 188
-
by cdahl383
Sun May 14, 2023 8:02 pm
-
- 3
- 348
-
by Clemsonfor
Thu Feb 17, 2022 7:56 pm
-
- 8
- 1075
-
by Glen
Tue Dec 26, 2023 5:55 pm
Who is online
Users browsing this forum: No registered users and 1 guest