Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Discussion Forum

What would be a good compression reading on a B?

Welcome Guest, Log in or Register

08-16-2002 11:02:02

Report to Moderator

My B (b450 and be362)smokes a little (white smoke)and seems to get worse after warming up. I measured the compression and all cylinders are running 95 to 100 psi dry. Did not check wet. Pulled valve cover and valves and rockers were very clean, so the head might have been rebuilt fairly recently. Looks like there are no valve seals on stems. I could grab top of valve spring and get a little side to side play.

Would valve seals help? Any opinions?

[Log in to Reply]   [No Email]
Steve in N.J.

08-19-2002 21:40:22

Report to Moderator
 Re: what would be a good compression reading on a B? in reply to Geoff, 08-16-2002 11:02:02  

White smoke usually isn't a good sign. Does the engine seem to run okay? The white smoke might be a head gasket starting to loose it's seal and coolant is seeping in, or maybe a crack somewhere. Check the oil and see if you're getting water in the crankcase. Usually oil starts to get "milky" when coolant starts to seep in, and as the engine warms up, a crack or a leaky head gasket would expand & get worst. I Don't mean to sound like Mr. Doom n' gloom, but if you catch a problem like that early, it's an easier and cheaper fix.... Good Luck! Steve

[Log in to Reply]  [No Email]
Rod (NH)

08-17-2002 19:40:07

Report to Moderator
 Re: what would be a good compression reading on a B? in reply to Geoff, 08-16-2002 11:02:02  
Hi Geoff,

Check out my post to Smitty up above regarding compression on a C for one opinion :o). The BE engine has a compression ratio of about 5:1. That translates into a maximum theoretical compression pressure of about 125 psig. I personally think that 95-100 psig on a compression test should be considered very good.

Are you using antifreeze in the radiator? White smoke at the exhaust typically indicates that antifreeze is getting into at least one of the cylinders in some way.


[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums

Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy