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

Tractor Talk Discussion Forum

NC wayne

Welcome Guest, Log in or Register
Author 
JoeBob/IN

01-24-2007 13:25:13




Report to Moderator

I looked for the serial number but all I found was a milled flat blank spot about 1"x3"... but there were some numbers upside down on the block. There were several sets there and they were all raised numbers. Didn't seem to me they were the serial numbers but I could be wrong. When I adjusted the racks it was both sides since I had the injectors out of both sides and swapped them over. It still won't fire on the left bank at first idle, you have to rev it for it to fire on that side and you can tell when at least one kicks in cause the rpms jump and she smooths out some. Right side will burn clean but left side blows a ton of raw fuel out the stack. Is it possible there is a blown gasket on that side? Seems odd that only that side would be low on compression.

[Log in to Reply]   [No Email]
NC Wayne

01-24-2007 18:50:52




Report to Moderator
 Re: NC wayne in reply to JoeBob/IN, 01-24-2007 13:25:13  
I'll check the book tomorrow and make sure but the milled flat spot you were talking about is where I thought the numbers were on the V engines. I know the numbers on the block aren't gonna be it, typically their just casting numbers and sometimes the part number for the block itself. Check the other side for a spot just like the one on the right and both sides toward the middle of the block toward the front. I swear I don't remember them being toward the back end of the engine anywhere but... If you are able to find any stamped numbers it should be a sequence starting with prefiz of 8VF if it's a 92 series or 8VA if it's a 71 series. That will be followed by a followed series of, typically, 4 to 6 numbers which is the actual, numerical, serial number for that engine. As for the smoke the Detroits don't use a "normal" head gasket like most engines you think about. They use an individual, circular crush gasket (fire ring) around the top of each cylinder and then use a square cut, rubber like rings to seal the water and oil passages, with all that followed up by another rubber like ring all the way around the outside of the head to seal oil draining back from the head into the cam vallies. That said a blown head gasket, like your thinking about it, shouldn't be causing the problem your seeing. Are you seeing that much oil smoke or oil slobbering out of the airbox drain tubes? Typically if the compression rings are worn out the oil control rings are too, in fact the oil control rings usually go first in my experience. Still from what your saying it leads me to believe it is a problem of low compression but wether it's from worn out or stuck rings or possibly a burnt valve or two it's hard to say. I know I had a customers 6V71 several years back that ran OK but smoked so bad on the left bank you'd have thought it was on fire. Turned out to be one burnt valve (out of 4) on one cylinder. It's hard to believe how much smoke can come from the fuel put in by one injector. If it's putting out as much raw fuel as your saying you can probably pull the exhaust manifold and look at the exhaust passages coming out of the head. Usually if one is that bad the passage will be washed or sometimes even still coated with raw fuel instead of soot like the rest of them. Doing that won't fix the problem by any means but it'll give you an idea of which cylinder(s) is bad. I'll check tomorrow on the correct location of the serial numbwer, since it seems my memory has failed me, and let you know tomorrow evening.

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

Hop to:


TRACTOR PARTS TRACTOR MANUALS
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