(800) 853-2651
SHOP NOW

neopreme washer versus leather washer

S

skipstein

Member
Hello All;
Any comments on the merits of using the neopreme washer instead of the leather washer on the new style NAA piston in the hysraulic system of an 8n?
Thanks,
Skip
 
(quoted from post at 09:00:38 05/16/16) Hello All;
Any comments on the merits of using the neopreme washer instead of the leather washer on the new style NAA piston in the hysraulic system of an 8n?
Thanks,
Skip
Click to expand...

I am following this thread . I am looking for a source for neoprene washers , all is see are leather .


Somebody once reported to take your old piston and cut the first ring groove to accept the NAA O-Ring and washer then keep the two last rings to push any debris out of the way .

I have 3 8n's torn down to the case on the rear end . 2 have chipped pinions and a lot of bad bearings . I pressure washed real good with the lift cover , pump , pto shaft , and axles removed . When I pulled the trumpets I found that the real good washing wasn't so good after all .

I did find that my 2" socket that I used on the axle nuts would fit over the yolks , which were all stuck . With a little oil , a hand held propane torch , and the hammering of the air impact , they only fought me for a few minutes but they all came off good , Now to try my luck on the arms and lift shafts .
 
" I am looking for a source for neoprene washers , all is see are leather ."

See tip # 63; CNH has them. At least around here they do..........
75 Tips
 
(quoted from post at 10:30:55 05/16/16) " I am looking for a source for neoprene washers , all is see are leather ."

See tip # 63; CNH has them. At least around here they do..........
75 Tips
Click to expand...

Allow me to pick a nit - neoprene is not a good material for use in petroleum products and o-rings and backup rings used in hydraulic systems are commonly made of Buna-N (nitrile rubber). High pressure/extended life backup rings are commonly PTFE (Teflon)

The NAA piston uses an industry standard size o-ring/backup ring (AS-330) and they are easily found at any industrial supply house. If you are frugal you can get a bag of fifty -330 Buna-N backup rings from McMaster for $8.50. A bag of 10 PTFE backup rings will cost you $12.55. Buy in volume and share with friends ;-)

TOH
 
Case New Holland.

Readily available singly but many dealers will likely need to order.

Dean
 
Ah....Thanks Dean....I hadn't heard Case had joined up with New Holland....The Dealer in my area never changed his sign....The C through me!
 
(quoted from post at 13:02:33 05/16/16) Ah....Thanks Dean....I hadn't heard Case had joined up with New Holland....The Dealer in my area never changed his sign....The C through me!
Click to expand...

Happened in or about 1999. Both companies were and still are owned by Fiat.

TOH
 
I have used the leather and the neoprene styles as well with satisfactory results from both. The back-up washer's meaning here is exactly that -it washes or more precisely, acts as a 'wiper' to ensure any debris in the cylinder gets pushed aside before the piston moves past. It isn't really a seal, the 'O'-Ring does that. I did my 8N with the leather washer and a neighbors 8N with the neoprene both within 2 weeks of each other and they both have lasted now for 5 years with no issues. CNH (Case New Holland) sells the neoprene washer, part number 87051231. It's just easier to order the new piston, O-Ring, and leather backup washer all together from one place.


Tim *PloughNman* Daley(MI)
 
A backup ring is exactly what the name says. It backs up the oring so the pressure does not push the o ring against the sharp edges. Used thousands of teflon ones in Helicopter parts.

That said I installed the old ring style 6 years ago and she is working just fine.
 

The rubber one is EZ to install :wink:

I had a leather backer upper break that event left a bad taste that did not settle well...
 
You must log in or register to reply here.

Similar threads

G
Ford 3000 power steering pump
Replies
5
Views
275
shaun wallace
S
1
1952 8N voltage regulator or resistor?!?
2 3
Replies
42
Views
1K
JMOR
J
M
Paint prep help
Replies
5
Views
347
showcrop
showcrop
J
Counterweight Blue
Replies
12
Views
570
ss55
S
woodbutcher
Whirlpool washer
2
Replies
20
Views
1K
Geo-TH,In
Geo-TH,In
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.

Copyright © 1997-2024 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

Back
Top