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New Owner General Questions

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=149810
Printed Date: 15 Dec 2025 at 12:13am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: New Owner General Questions
Posted By: Algar The AC
Subject: New Owner General Questions
Date Posted: 24 Apr 2018 at 1:25pm

Hi, Just become a proud owner of my 1st Vintage Tractor & Allis Chalmers B. However I am now after some advice.....
A) Can anyone advise what the majority of threads are. i.e. UNC or UNF....
B) What the "Petrol' Fuel tank mounting nuts are.
C) Should the tank be mounted with a rubber spacer.
D) What the thread on the manifold for the heat shield are.

Sorry for the amount of questions but i am a complete fresher on these tractors.....

Thanks.




Replies:
Posted By: DaveWisc.
Date Posted: 24 Apr 2018 at 1:35pm
Most bolts will be UNC. As to bolt size not sure either 5/16 or 3/8 . Does not have a rubber mounting that I know of. I put a strip of light belting on the bottom of mine.Wecome to the Allis Web Site there is a wealth of information on here don’t be afraid to ask questions.


Posted By: The Consultator
Date Posted: 24 Apr 2018 at 1:47pm
Congratulations on your tractor! I got my first (also a B) last September. This site has helped me tremendously!

I'm not sure if these will help, but here is what there are for parts on the tank.  

http://stores.djstractorparts.com/fuel-tank-webbing-tan-1-3531t51/" rel="nofollow - http://stores.djstractorparts.com/fuel-tank-webbing-tan-1-3531t51/
The webbing can go under the strap and help fight abrasion.

http://stores.djstractorparts.com/cap-screw-bolt-block-for-fuel-tank-radiator-straps-allis-chalmers-b-ib-c-ed40-wf-wc-rc-wd-wd45-70202132/" rel="nofollow - http://stores.djstractorparts.com/cap-screw-bolt-block-for-fuel-tank-radiator-straps-allis-chalmers-b-ib-c-ed40-wf-wc-rc-wd-wd45-70202132/
Currently, my B doesn't have the proper hardware for mounting the tank, but the screws I have work fine. I can't remember off the top of my head what the 'nuts' are on mine, but they are either welded or otherwise attached to the tractor.


-------------
1939 Allis-Chalmers "B" restored in 2010- very good condition.


Posted By: txtractorguy
Date Posted: 24 Apr 2018 at 2:14pm
According to the parts manual I have, the mounting hardware for the fuel tank strap were originally as follows.

Prior to tractor B-58401:
4 washers and 2 screws (these two screws, p/n 202132, are the same as those given in the link in the above post) 

Tractor B-58401 and up:
2 of 3/8" x 1-3/4"  square head bolt, UNC
2 of 3/8" medium lock washer
2 of 3/8" hex nut



Posted By: Gary
Date Posted: 24 Apr 2018 at 2:16pm

Hi Algar

Welcome to the Allis Chalmers Forum.

Seeing that you used the word Petro, are you in Essex County in the UK.

Next thing to determine - is yours an English B, assembled in the UK, or an American B.

You can determine that from the Tractor Serial Number, stamped in to the transmission Housing next to the gearshift.

English B will start with EB ...

Gary


Posted By: The Consultator
Date Posted: 24 Apr 2018 at 2:21pm
...And that's why I love these guys!


-------------
1939 Allis-Chalmers "B" restored in 2010- very good condition.


Posted By: Bill Long
Date Posted: 24 Apr 2018 at 2:31pm
Algar,  Welcome to the Unofficial Allis Chalmers Forum.  You will find a wealth of information here.  Do not hesitate to ask.  We are all interested in keeping the name Allis Chalmers alive.
I am so pleased that you have my favorite Allis Chalmers Tractor, the B.  I was honored to work with my father, an Allis Chalmers Dealer, for the life of the unit.  It was our top seller.
The questions you asked have already been answered.  However, I do recall the web straps that were in place to cushion the gasoline or Petrol tank.
I will enclose a picture of me with a B and my son to show what an American B looks like.
Let us know how it goes.  It will be our pleasure to be of service.
Good Luck!
Bill Long




Posted By: Algar The AC
Date Posted: 24 Apr 2018 at 2:52pm
Thanks All, Very useful information.

He is a UK Build Vehicle & Yes Is in Essex UK.


Posted By: Gary
Date Posted: 24 Apr 2018 at 3:52pm

Algar

I would recommend you get a Manual for your 'B'.

Lots of good info. for a first time owner.

Here is a link to one on Ebay. It is for a US assembled 'B', but would still have lots of info.

This is the better of 2, it has Operating Instructions as well as Parts Illustrations.

Gary


https://www.ebay.ca/itm/Vintage-ALLIS-CHALMERS-Model-B-TRACTOR-OWNERS-OPERATORS-MANUAL-TPL-28M/222767148073?hash=item33ddf4ec29:g:1K4AAOSw-jFaPq8p" rel="nofollow - https://www.ebay.ca/itm/Vintage-ALLIS-CHALMERS-Model-B-TRACTOR-OWNERS-OPERATORS-MANUAL-TPL-28M/222767148073?hash=item33ddf4ec29:g:1K4AAOSw-jFaPq8p



Posted By: Gary
Date Posted: 24 Apr 2018 at 4:05pm

Link to picture of an Allis EB:

https://www.i-bidder.com/en-gb/auction-catalogues/cheffinsov/catalogue-id-cheffi1-10017/lot-a552625e-e54c-436e-88ef-a4fa00c89a1a" rel="nofollow - https://www.i-bidder.com/en-gb/auction-catalogues/cheffinsov/catalogue-id-cheffi1-10017/lot-a552625e-e54c-436e-88ef-a4fa00c89a1a


Link to picture of Allis US 'B'

https://www.google.com/search?biw=1366&bih=651&tbm=isch&sa=1&ei=xZrfWqDAC47K_QanzIDoDw&q=picture+Allis+B&oq=picture+Allis+B&gs_l=psy-ab.12...216564.216564.0.220089.1.1.0.0.0.0.86.86.1.1.0....0...1c.1.64.psy-ab..0.0.0....0._lF6DjB6hnY#imgrc=kaEgBc1qgJ_9UM:" rel="nofollow - https://www.google.com/search?biw=1366&bih=651&tbm=isch&sa=1&ei=xZrfWqDAC47K_QanzIDoDw&q=picture+Allis+B&oq=picture+Allis+B&gs_l=psy-ab.12...216564.216564.0.220089.1.1.0.0.0.0.86.86.1.1.0....0...1c.1.64.psy-ab..0.0.0....0._lF6DjB6hnY#imgrc=kaEgBc1qgJ_9UM:

Gary


Posted By: DiyDave
Date Posted: 24 Apr 2018 at 5:25pm
I know, on the 'merican ones, that a boy scout belt is a decent substitute, for the webbing...Wink


Posted By: cdon_FL
Date Posted: 27 Apr 2018 at 4:20pm
welcome to the forum.   Happy to have you aboard !
My 92 year old father in law still uses his B model to mow his place.  They are fine little tractors.

-------------
Chris in NE Florida



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