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
Forum Home Forum Home > Allis Chalmers > Farm Equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


What if B cylinders
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
tractorman View Drop Down
Orange Level
Orange Level
Avatar

Joined: 22 Sep 2009
Location: west central wi
Points: 1046 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tractorman Quote  Post ReplyReply Direct Link To This Post Topic: What if B cylinders
    Posted: 01 Mar 2015 at 5:35pm
So if i had an impaired B engine   and a couple  donor B engines with different  bore and stroke,  what would happen if i put one or two  of the smaller sleeves and pistons into a block with 2 or 3 of the larger sleeves and piston sets ?   
Play on 38 B 49 WF , working on D14, D15 B10, Bee 12 B110. use 185 and 190
Back to Top
Sponsored Links


Back to Top
DiyDave View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 54125 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar 2015 at 5:58pm
Not a good idea to mix and match, it might end up sounding like 2 john deeres runnin...
Back to Top
CTuckerNWIL View Drop Down
Orange Level
Orange Level
Avatar

Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CTuckerNWIL Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar 2015 at 7:08pm
Unless you have regound a crank, the stroke is the same on ALL B engines. The worst thing you could do would be to put one cast piston, or 2 on the same side throw to unbalance things.  Whatever you do mixing parts with different diameter pistons, and different compression ratios, is likely to cause vibration problems.
http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
Back to Top
Steve in NJ View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11994 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Steve in NJ Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 2015 at 8:13am
Probably would make a window in the block... LOL!
39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
Back to Top
Gerald J. View Drop Down
Orange Level
Orange Level


Joined: 12 Sep 2009
Location: Hamilton Co, IA
Points: 5636 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gerald J. Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 2015 at 8:52am
Or break the crank from the unbalance.

Actually it would benefit from matching the piston and rod weights. Why they are often bought in sets.

Gerald J.
Back to Top
HudCo View Drop Down
Orange Level
Orange Level
Avatar

Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3912 		Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 2015 at 10:34am
well if you done that could you make a short video when you started it ?
Back to Top
PaulB View Drop Down
Orange Level
Orange Level


Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 5106 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PaulB Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 2015 at 11:57am
I have a lot of different used B & C engine parts available. I think I have 2 good usable matched sets of the smaller (3-14") pistons with sleeves, maybe a few od ones as well. Then I also have a selection of the 3-3/8" pistons as well. What is the number on the best ones you'd like to match up?
Back to Top
Dick L View Drop Down
Orange Level
Orange Level
Avatar

Joined: 12 Sep 2009
Location: Edon Ohio
Points: 5087 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dick L Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 2015 at 3:14pm
Originally posted by tractorman tractorman wrote:

So if i had an impaired B engine   and a couple  donor B engines with different  bore and stroke,  what would happen if i put one or two  of the smaller sleeves and pistons into a block with 2 or 3 of the larger sleeves and piston sets ?   


The strokes on your B's will be the same. If you place the same size on one and two and use a different size as long as they are the same size on three and four you should be able to hold the engine together. To keep it somewhat in balance you will want the same weight going down at the same time the exact same weight is going up. If you have one weight going up as another weight is going down you would get some shake at higher RPM's. If I had the parts and was short on cash I would do it in a heat beat. The difference between you and I would be I would never told anyone.

Edited by Dick L - 02 Mar 2015 at 3:16pm
Back to Top
DaveKamp View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 12 Apr 2010
Location: LeClaire, Ia
Points: 6069 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DaveKamp Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 2015 at 10:36pm
I've heard of guys doing things seemingly much worse, and not having any major issues... just keep it all in mind when you're running it...
Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.168 seconds.


Help Support the
Unofficial Allis Forum