185 Clutch?
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=176557
Printed Date: 29 Jun 2025 at 4:49pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 185 Clutch?
Posted By: Kansas99
Subject: 185 Clutch?
Date Posted: 07 Dec 2020 at 7:31pm
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So I was mowing awhile back and as I bounced through a hole the tractor stopped moving. Couple times with clutching and away it went. Then it came to a halt for good and I heard the clutch throw some shrapnel. Anyway I have it split planning on getting a clutch ,pilot bearing and throw out. However I can’t see anything wrong with pressure plate but it has a pretty good grove(to me) cut in it from a spring or something. I only use it to mow and run the hay fluffer so it doesn’t need to be perfect but the mower will pull from time to time. Just wanting opinions on pressure plate. See picture below, it’s the worst grove, hopefully it’s nothing and I’m too paranoid. Flywheel looks perfect. Oh you can see wear in center of pressure plate but I don’t see this as a problem as there should never be pressure there or maybe not?      ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Replies:
Posted By: Kansas99
Date Posted: 07 Dec 2020 at 7:35pm
Oh, disregard those Budlight cans, we never drink while turning wrenches they were just oil catch cans. There just happened to be some oil dripping from the roof that I didn't want to get on the tractor.  ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: DSeries4
Date Posted: 07 Dec 2020 at 9:16pm
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I would put a new pressure plate while you are already in there. The grooves might cause uneven wear on the new clutch plate. ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Posted By: Rick
Date Posted: 08 Dec 2020 at 1:51am
| You need to have the entire clutch rebuilt to do the job right... Pressure plate groove is from the button pads wearing into it and needs to be resurfaced, along with the flywheel...the disc is obvious, throw out bearing and pilot bearing. I can do the job for 225.00, plus whatever the shipping charges might be...you can have the flywheel resurfaced locally there and save money on the heavy shipping charges. You're already that close to having the flywheel off with taking out the bolts, so why not have it turned and it'll last a long time? Send me a private message, if interested...Rick |
Posted By: Bret (OH)
Date Posted: 08 Dec 2020 at 4:53am
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No way I would split a tractor for a clutch disc and not replace Pressure Plate and both bearings, and by all means resurface the flywheel. Remember that whatever is removed from the clutch surface of the flywheel also needs to be removed from the pressure plate mounting surface. There is a specification for that dimension. I don't have access to the manual now but others will know the dimension. Also, if it were me, and if you are not going to be using it for heavy draft loads, replace the button clutch with a fiber lined disc. It will engage much less "grabby" than the button.
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Posted By: Rick
Date Posted: 08 Dec 2020 at 5:21am
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The flywheel step is 1.437 and what is taken off the face of that is also taken from the top flange of the flywheel where the pressure plate mounts...flywheel depth... |
Posted By: MACK
Date Posted: 08 Dec 2020 at 6:35am
| Do it right or don't complain if it don't work good and last. MACK |
Posted By: Kansas99
Date Posted: 08 Dec 2020 at 7:06am
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What's your thoughts on the wear on the pressure plate housing? Probably just get a new pressure plate? ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: Rick
Date Posted: 08 Dec 2020 at 7:11am
| The pressure plate can be resurfaced, not a problem at all and can have the thickness brought back to where it should be by using thicker pads to pick up the difference, but it NEEDS the flywheel to be resurfaced, so that the buttons can seat in good. Take the flywheel to a machine shop that actually resurfaces flywheels...they do a far better job than a lathe...and will put the correct cut on it to knock off the high spots on the buttons... |
Posted By: Kansas99
Date Posted: 08 Dec 2020 at 7:23am
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Rick, I understand that but my concern was where the pressure plate back is wore in the center, the metal is pretty thin in that spot.(picture 2) ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: Rick
Date Posted: 08 Dec 2020 at 7:29am
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Okay...I never saw that...that's where the loose center hub out of the clutch disc slung around inside there and cut a pretty good groove in it...it's okay, as I do have another unit I can use (core) and just use the parts out of your old one later...pressure plate, cups...things like that... |
Posted By: farmboycitygirl
Date Posted: 09 Dec 2020 at 8:36am
| Been there done that - split the tractor to rebuild the engine should have replaced the throw out bearing, it went out the next year and screwed the pressure plate. |
Posted By: DrAllis
Date Posted: 09 Dec 2020 at 9:07am
| Standard procedures while tractor is split: #1. replace clutch disc and pressure plate. #2. resurface flywheel. #3. replace rear crankshaft seal and wear sleeve. #4. replace clutch shaft seals(s) and gasket. #5 replace throw out brg. #6. replace pilot bearing. .. Anything short of these things and you will one day have to get back in there for something. |
Posted By: HudCo
Date Posted: 09 Dec 2020 at 9:43am
| dont forget to turn the ring gear. by now i am sure one side is wore out or has some wear spots wear the engine always stops. theres nothing more annoying than a starter that will not engage |
Posted By: DrAllis
Date Posted: 09 Dec 2020 at 9:57am
| That would be #7. |
Posted By: Kansas99
Date Posted: 09 Dec 2020 at 11:21am
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Any thoughts on why that clutch came apart. ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: DrAllis
Date Posted: 09 Dec 2020 at 11:55am
| Old age. Shock loads. Dumping the clutch. Heavy PTO loads. Many clutches fail like that in 4 to 5,000 hrs. How many are on it ?? |
Posted By: Kansas99
Date Posted: 09 Dec 2020 at 1:42pm
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Not sure,bought it used with a new tach, oops I mean 156 original. Kinda looks like it's been replaced already, Pilot bearing being made in Korea guessing not original. It has had some random heavy loads on pto from 7ft mower in some big ugly weeds but not often. ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: ksbowman
Date Posted: 09 Dec 2020 at 5:32pm
| A 7' mower isn't much on a 185. I run a 15' batwing on my 170 and 180 diesels and they handle them easily. Even in heavy stuff. |
Posted By: DrAllis
Date Posted: 09 Dec 2020 at 6:00pm
| It isn't too much unless you hit something. I've seen a One-Eighty that corkscrewed the PTO shaft with a 7 ft mower when hitting something pretty solid. |
Posted By: ksbowman
Date Posted: 09 Dec 2020 at 7:41pm
| Sounds like they didn't check their gear box clutch and adjust it every spring. |
Posted By: Kansas99
Date Posted: 18 Dec 2020 at 6:53pm
Got the 185 back together. Nice day today so went ahead and gave it a quick rinse. Took time to get a couple pics.   Even put a SMV sign on it so it’s road legal.  ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: DrAllis
Date Posted: 18 Dec 2020 at 7:40pm
| Be sure to adjust the clutch pedal free-play to 4 inches and that will give you many years of service life. That's a sharp looking tractor and the OEM muffler always stands out compared to any after-market muffler. |
Posted By: FREEDGUY
Date Posted: 18 Dec 2020 at 7:46pm
| Doc, may I ask what is different about an aftermarket muffler? Just curios is all. Can an OEM be had from a dealer anymore ? Thanks |
Posted By: Kansas99
Date Posted: 18 Dec 2020 at 9:10pm
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Thanks Dr. I will check free play, I wasn't sure what it needed to be. I have a fair amount but not sure if it's 4 inches, I went till I knew the throw out was off plate but not a lot. ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: IBWD MIke
Date Posted: 19 Dec 2020 at 5:17am
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That's a great looking machine! 185's are one of my favorites. |
Posted By: Lonn
Date Posted: 19 Dec 2020 at 7:19am
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Your 185 is a gem! Glad you got it going again. I prefer the looks of that series of tractors with the racing stripes. I like the looks of my 200 too and am tickled to finally have a 200. I've wanted one since I was a little kid and playing with my cousin's toy 200 and me and my brother each got the hot rod pulling tractor 200 from the local dealer back in about 1975, I was 6 years old. My real 200 is a 1975 model without the racing stripe but it is still a pretty tractor. Next I want a 185 as nice as yours, would settle for a 180. I hope I didn't hijack your post. ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: Kansas99
Date Posted: 19 Dec 2020 at 7:58am
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Thanks Lonn, I would agree I think that series is the best looking tractor without a cab Allis ever made.(although a 5020 is cute) Something about that long square hood. You could set them beside a JD, Case, IH, or any other of that era and the Allis IMO is easily the best looking one. ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: DougG
Date Posted: 19 Dec 2020 at 8:37am
| Good looking tractor for sure, see you put a Grammer seat on it - how do you like it ? |
Posted By: Lonn
Date Posted: 19 Dec 2020 at 9:31am
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Oh BTW, and I'm not trying to criticize, but you should build a jack stand for that job. That blocking and bottle jack looks precarious. Wouldn't want a forum member to get hurt. ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: Kansas99
Date Posted: 19 Dec 2020 at 9:41am
It's ok but it doesn't have much padding. ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
DougG wrote:Posted By: Kansas99
Date Posted: 19 Dec 2020 at 9:47am
Actually we were going to put a stand under it, but even though it looks bad in the picture it was more stable than it looks. I put it back together by myself so my hired man wasn't there and if I just got hurt it wouldn't have been much of a lose anyways. ------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |
Posted By: Kansas99
Date Posted: 19 Dec 2020 at 11:32am
I got Xmas dinner this afternoon so I think I'll see if I get ok from the "old man" to take some pictures of his old tractor collection. Pretty sure he won't mind, he's at the age that maybe some one other than a handful of close family maybe should see them. He has 50-60 of them some restored most are not, but they are all straight and not bent up and all but one are wide fronts no cycles. He started collecting them when he was 18, back then you offered someone $50 and you left their farm with their old tractor , he's 78 now so he's been at it a few years. Might slip down and get some pictures of his original 76' 7080 that is still as close to perfect as you'll find. If I get them pictures I'll post them in new thread.------------- "Thank you for your service Joe & the Ho"-----Joseph Stalin |