![]() |
This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity. | |||||
The Forum | Parts and Services | Unofficial Allis Store | Tractor Shows | Serial Numbers | History |
Best way to split a B? |
Post Reply ![]() |
Page <12 |
Author | |
steve(ill) ![]() Orange Level Access ![]() ![]() Joined: 11 Sep 2009 Location: illinois Points: 86545 |
![]() ![]() ![]() ![]() ![]() |
If you look at Dicks photos, he is lifting in the center of the motor. Not much weight on the front tires , they are just touching the ground.. Now if you are lifting toward the read of the motor and rolling on the front tires, you should block above the wishbone.
-
EIther way, a couple small boards shoved into the gap cant hurt. Edited by steve(ill) - 16 Sep 2016 at 1:18pm |
|
Like them all, but love the "B"s.
|
|
![]() |
|
Sponsored Links | |
![]() |
|
Dakota Dave ![]() Orange Level ![]() ![]() Joined: 12 Sep 2009 Location: ND Points: 3968 |
![]() ![]() ![]() ![]() ![]() |
B don't have a gap to block just a flat plate sticking down from the motor for a pivot point. when you lift the motor from the lifting point the front axle has no weight on it and will roll very easy. if you don't hold the wishbone up some way when you pull the assembly forward to separate from the back half the front of the wishbone pulls out of the pivot plate on the front of the engine. if you put a plank across the two legs of the cherry picker that are under the engine and just put a block on it I just use a 2x4 cut to length standing on the plank it holds the back of the wishbone up and when it slides out of the pivot point on the bell housing it stays about the same height and everything rolls together. there is no real weight on the wishbone my wife was able to lift it slightly with one hand to guide it back in the hole when I pushed it back together. if you let the wish bone on a CA come out of the front pivot point the tires decide to point different directions and it becomes less than fun to get it back together. you wont have that problem with a B so you might be able to skip it but I've found it easier to just keep the axle in place if I'm putting the tractor back together soon. When I did the oil pump on my C I had it split repaired and back together in 4 hours. the B and C are the easiest tractors ever to spit.
|
|
![]() |
|
CrestonM ![]() Orange Level ![]() ![]() Joined: 08 Sep 2014 Location: Oklahoma Points: 8452 |
![]() ![]() ![]() ![]() ![]() |
Thanks guys! I got the tractor split this afternoon, an pulled the pump and cleaned up the mounting surface. Now I'm just waiting on my re-manufactured pump to get here! Hopefully it will arrive sometime during the week and can put it back together next weekend.
Also...another question...I've got about an hour or so on my rebuilt engine in the B, and there is a tiny bit of antifreeze leaking out between the head and the block, but only on the left side. Uh oh. I did spray copper coat (spelling?) on it and let it become tacky before installing it. Do you think I can just torque the head down a little more? That trick worked on my 8N, but this B is a different animal.
|
|
![]() |
|
shameless (ne) ![]() Orange Level ![]() ![]() Joined: 08 Jul 2016 Location: nebraska Points: 7463 |
![]() ![]() ![]() ![]() ![]() |
duct tape? it comes in orange now!
|
|
![]() |
|
Dan73 ![]() Orange Level ![]() ![]() Joined: 04 Jun 2015 Location: United States Points: 6054 |
![]() ![]() ![]() ![]() ![]() |
I would double check the torque. That said the same thing happened on my d15 and when I re torqued the bolts one snapped. It could be that one of the old head bolts is stretching as it fails. If it breaks off in the block it won't be fun to get out.
|
|
![]() |
|
DanC911 ![]() Orange Level ![]() ![]() Joined: 22 Jul 2014 Location: CT, USA Points: 598 |
![]() ![]() ![]() ![]() ![]() |
1950 WD, 1955 B, 66 Jacobsen Chief-O-Matic, 68 Simplicity 2110, 77 IH Cub Cadet 1450 w/front loader
|
|
![]() |
|
CrestonM ![]() Orange Level ![]() ![]() Joined: 08 Sep 2014 Location: Oklahoma Points: 8452 |
![]() ![]() ![]() ![]() ![]() |
Are the head bolts made soft like that so they stretch and snap?
|
|
![]() |
|
Dan73 ![]() Orange Level ![]() ![]() Joined: 04 Jun 2015 Location: United States Points: 6054 |
![]() ![]() ![]() ![]() ![]() |
I think they where just old in my case.
|
|
![]() |
|
shameless (ne) ![]() Orange Level ![]() ![]() Joined: 08 Jul 2016 Location: nebraska Points: 7463 |
![]() ![]() ![]() ![]() ![]() |
never re-use stretch bolts
|
|
![]() |
|
Dan73 ![]() Orange Level ![]() ![]() Joined: 04 Jun 2015 Location: United States Points: 6054 |
![]() ![]() ![]() ![]() ![]() |
My policy now is never reuse head bolts.
|
|
![]() |
|
steve(ill) ![]() Orange Level Access ![]() ![]() Joined: 11 Sep 2009 Location: illinois Points: 86545 |
![]() ![]() ![]() ![]() ![]() |
head bolts from the 1940-1970 era and just plain grade 8 type bolts. They can be used over and over as long as they are not over torqued.. Some NEW auto engines use bolts that are torqued to the stretch point... They are designed to not reuse.
|
|
Like them all, but love the "B"s.
|
|
![]() |
|
CrestonM ![]() Orange Level ![]() ![]() Joined: 08 Sep 2014 Location: Oklahoma Points: 8452 |
![]() ![]() ![]() ![]() ![]() |
So do you think I should get new bolts? My bolts don't have the marks on top for grade 8, or any grade. Maybe they just didn't label them?
What would happen if they were over torqued? Would it strip the block threads out or break the bolt/strip it?
|
|
![]() |
|
shameless (ne) ![]() Orange Level ![]() ![]() Joined: 08 Jul 2016 Location: nebraska Points: 7463 |
![]() ![]() ![]() ![]() ![]() |
try it and let us know!
|
|
![]() |
|
Dan73 ![]() Orange Level ![]() ![]() Joined: 04 Jun 2015 Location: United States Points: 6054 |
![]() ![]() ![]() ![]() ![]() |
After replacing the head gasket twice in my d15 and being very glad that the bolt that look ok when it was put in actually came out when I pulled it out. It was actually broken almost completely in two but came out I still don't know how I got that lucky. Really should have gotten a photo of that one. Let me see for me 2 extra head gaskets two fills of antifreeze and oil two oil filters god only knows how many hours lost taking it all apart cleaning and inspecting everything. Who knows how many years off my life for that stress of putting soo much into this motor and twice the head gasket won't hold first one lasted something like 4 hours of runtime. Steve might be right you can use the old bolts but to me new bolts are cheap considering what not buying them cost me. And that was still a lucky case no added motor damage to my freshly rebuilt motor from antifreeze getting into the oil and I was able to get the bolt out without having to mess around with the block. But heck if you are up for a gamble save a few dollars and use the old bolts. If someone didn't over stress then in the past what 80 years and someone didn't replace one with a grade 5 because they didn't know better or well it was there... Like steve said you could be fine and save a few dollars.
Edited by Dan73 - 19 Sep 2016 at 2:11am |
|
![]() |
|
Dan73 ![]() Orange Level ![]() ![]() Joined: 04 Jun 2015 Location: United States Points: 6054 |
![]() ![]() ![]() ![]() ![]() |
As far as i know grade 8 bolts where always marked it is part of the grade system. Old grade 5 bolts where considered standard hardware probably harder then modern grade 5 and not marked is what I was told probably 25 years ago now.
|
|
![]() |
|
Dick L ![]() Orange Level ![]() ![]() Joined: 12 Sep 2009 Location: Edon Ohio Points: 5087 |
![]() ![]() ![]() ![]() ![]() |
If you didn't run a tap in the block holes to clean the threads the bolts can get to torque and still not be tight to the head. Run a 7/16" nut on the head bolts by hand to find stretched threads that was caused by tightening way past spec sometime in the past. If the nut will not turn on by hand after cleaning the threads you need to ditch/chuck/toss the old bolt. Grade eight bolts for new. ![]() |
|
![]() |
|
CrestonM ![]() Orange Level ![]() ![]() Joined: 08 Sep 2014 Location: Oklahoma Points: 8452 |
![]() ![]() ![]() ![]() ![]() |
Dick, I didn't run a tap into the block, but how would the head not torque down?
Is it maybe because junk in the threads is providing resistance that gets the bolt to torque specs, but is a false reading because it's not actually torquing the head down that much? Edited by CrestonM - 19 Sep 2016 at 6:57am |
|
![]() |
|
Dan73 ![]() Orange Level ![]() ![]() Joined: 04 Jun 2015 Location: United States Points: 6054 |
![]() ![]() ![]() ![]() ![]() |
Yup CrestonM you got it right on the money. They bind up in dirty threads instead of putting the correct force on the motor head.
|
|
![]() |
Post Reply ![]() |
Page <12 |
Tweet
|
Forum Jump | Forum Permissions ![]() You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |