Short D17 Question
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=30545
Printed Date: 06 Mar 2025 at 10:26am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Short D17 Question
Posted By: Dennis IL
Subject: Short D17 Question
Date Posted: 10 May 2011 at 7:25pm
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I noticed today a very rapid tapping sound (only under heavy load) best way to sdescribe it would be like two spoon handles tapping together and as mentioned very rapid.
I only hear it while working the machine hard (and even then it doesn't seem to be all the time).... as opposed to light work like bushhogging etc.
My first thought was maybe tappet clearance, what do you fella's think? I have been working in the fields non stop lately and just don't have the time to shut that tractor down to poke around with it until I'm caught up with planting.
When I do check into it can any give me an idea of things to check . Thank you. Dennis. (while I'm thinking of it tractor is running fine no problems there just a very slight tapping once in awhile)
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Replies:
Posted By: DrAllis
Date Posted: 10 May 2011 at 7:35pm
| Exhaust manifold gaskets. |
Posted By: Lonn
Date Posted: 10 May 2011 at 7:39pm
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Manifold gasket giving out? I think you're right to check the tappets. Can you put it to a load and pull off and put back on each plug wire to see if a certain cylinder is the culpret. Hopefully not a wrist pin. I'm a slow typer. Looks like the doctor already said manifold gaskets.------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: Dennis IL
Date Posted: 10 May 2011 at 7:40pm
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DrAllis wrote:Posted By: Dennis IL
Date Posted: 10 May 2011 at 7:47pm
Lonn, while I was on the tractor my mind was racing and that thought did cross my mind as well (wrist pin) I have a feeling it's not (sure hope not) the reason I don't think it is is beacuse I remember the Super M making a noise and it turned out to be a wrist pin but that was much louder than this is. Also it just wasn't as fast a tap as this is on the D17.
Different tractors I know, but I would think it would sound somewhat similar.
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Posted By: TexasAllis
Date Posted: 11 May 2011 at 8:02am
Which cylinder was it? I bet it is the rear exaust port.
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Posted By: CTuckerNWIL
Date Posted: 11 May 2011 at 8:17am
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I've heard that sound from my 45 before but but just forgot, till DR Allis mentioned it, what caused it. My gaskets were bad in front and in back and the neighbor could hear the tapping when we passed in the field. That was the first time I plowed with the 45.
------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Skyhighballoon(MO)
Date Posted: 11 May 2011 at 1:14pm
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I need to check my D17 Series IV very closely...it's been making the same sounds. Mike ------------- 1981 Gleaner F2 Corn Plus w 13' flex 1968 Gleaner EIII w 10' & 330 1969 180 gas 1965 D17 S-IV gas 1963 D17 S-III gas 1956 WD45 gas NF PS 1956 All-Crop 66 Big Bin 303 wire baler, 716H, 712H mowers |
Posted By: john(MI)
Date Posted: 11 May 2011 at 1:30pm
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Are you using the PTO? Are you using the hydraulics? Start by eliminating those. I heard that sound from my hydraulics on my D14! ------------- D14, D17, 5020, 612H, CASE 446 |