Ideas why one piston looks dished?
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=160607
Printed Date: 14 Nov 2024 at 8:25am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Ideas why one piston looks dished?
Posted By: 57WD45FarmUse
Subject: Ideas why one piston looks dished?
Date Posted: 02 May 2019 at 9:28pm
|
Hi there. I pulled the head off my block and and took a close look at my piston tops and the rear one is dished in whereas the other ain’t. Any ideas what can cause this? Or possibly it is an incorrect replacement? thanks in advance! 
|
Replies:
Posted By: TramwayGuy
Date Posted: 02 May 2019 at 10:51pm
| Probably the same reason my Oliver 88 had 5 aluminum and 1 cast iron piston when I bought it! 😆 |
Posted By: 57WD45FarmUse
Date Posted: 02 May 2019 at 11:21pm
|
Yup. That’s what I’m thinkin. I reckon I’m just Gona keep runnin with the bottom end as is for now. Some years later I’ll get her some new pistons, rods ,full rotating assem! |
Posted By: DonDittmar
Date Posted: 03 May 2019 at 7:50am
LOL. I did a 460 gas IH for a guy once, he swore up and down it was original and has never been apart. When I popped the pistons out, all 6 were knurled. Thats an old time repair you dont see anymore....... ------------- Experience is a fancy name for past mistakes. "Great moments are born from great opportunity" 1968 D15D,1962 D19D Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start |
TramwayGuy wrote:Posted By: 57WD45FarmUse
Date Posted: 03 May 2019 at 6:13pm
|
Knurled. Now there’s a word I’ve heard. Just wasn’t sure the meanin in reference to piston work until now ! I was just makin sure I wasn’t missing nothin and I had big problems with my bottom end that damaged that piston.. My gut reaction was it was just a different piston someone put in there because that’s all they could get some where along the line. Thanks! |
Posted By: Don(MO)
Date Posted: 03 May 2019 at 6:32pm
|
Can you post a pic of the three other pistons and what's the bore of all four pistons? ------------- 3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep. |
Posted By: DMiller
Date Posted: 03 May 2019 at 6:35pm
| Have not seen a knurled piston in forty years, used to know a gent with tooling to do that as well knurl guides, they don't do that anymore either. |