belt pulley - splines

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belt pulley - splines

Postby mathias1 » Mon Apr 02, 2018 2:47 pm

Can't see what is used to stop leaking by the splines in the parts book:
How is this stopped? Instant gasket or something else?

Image

Image
Last edited by mathias1 on Sun Apr 22, 2018 12:17 pm, edited 1 time in total.
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Re: belt pulley - splines

Postby shepp » Mon Apr 02, 2018 9:18 pm

From memory there should be an "O" ring behind the splined hub that fits into the end of the pulley - this seals between the pulley and the drive shaft. Withdraw the hub from the pulley and check for the "O" ring behind it in the pulley housing - the threaded holes in the hub can be used for two bolts to extract the hub. Obviously install a new "O" ring on re-assembly.
1946 E27N, 1952 Major Diesel, 1959 Power Major, 1962 Dexta, 1962 Super Dexta, 1963 Super Dexta NP, 1964 Super Major NP, 1965 Super Dexta 3000, 1966 Major 4000, 1967 3000 PF, 1994 5640,plus Basildon built NH.
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Re: belt pulley - splines

Postby shepp » Wed Apr 04, 2018 11:10 am

Just checked my parts book and the "O" ring is shown, part number E1ADKN 115103.
1946 E27N, 1952 Major Diesel, 1959 Power Major, 1962 Dexta, 1962 Super Dexta, 1963 Super Dexta NP, 1964 Super Major NP, 1965 Super Dexta 3000, 1966 Major 4000, 1967 3000 PF, 1994 5640,plus Basildon built NH.
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Re: belt pulley - splines

Postby mathias1 » Wed Apr 04, 2018 12:35 pm

shepp wrote:Just checked my parts book and the "O" ring is shown, part number E1ADKN 115103.


Thanks. this goes between the splined hub and the pulley wheel.
But there's still a gap left in the splined hub, or is this modified?
I also noticed there's still some play between the splined hub and the shaft.
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Re: belt pulley - splines

Postby shepp » Wed Apr 04, 2018 9:16 pm

It's a long time ago since I dismantled a pulley, but I seem to remember that the "O" ring inner surface contacts the unsplined part of the shaft - there is a smooth section for a short distance behind the splines before the shaft diameter steps up a bit and the step gives a shoulder for the "O" ring to seat against. The outer surface contacts the inner bore of the pulley, thus preventing oil getting as far as the splines. I do not remember a gasket between the hub and the pulley, if there was one there it would serve no purpose other than to prevent the ingress of water and dirt between the hub and the pulley.
1946 E27N, 1952 Major Diesel, 1959 Power Major, 1962 Dexta, 1962 Super Dexta, 1963 Super Dexta NP, 1964 Super Major NP, 1965 Super Dexta 3000, 1966 Major 4000, 1967 3000 PF, 1994 5640,plus Basildon built NH.
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Re: belt pulley - splines

Postby henk » Tue Oct 09, 2018 9:13 pm

Have to do the pulley job myself now.
The I&T book names the oil seal "grease retainer". is there a difference between an oil seal and a grease retainer?
I have not come across an O-ring or other seal when I dismantled both pulleys. Just a steel washer on one. It was coullered a bit bleu, so it seems it has been heated a bit on duty. The I&T book calls part number 115103 a bushing gasket. Looks like thats something else than an o-ring.
Kind regards, Henk

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Re: belt pulley - splines

Postby shepp » Wed Oct 10, 2018 10:29 am

Hi Henk

I would say there is no difference in this case between a grease retainer and an oil seal, but it is possibly a narrow oil seal.

Looking at the Fordson parts book alongside the I&T manual paragraph 217 on the belt pulley:

The splined drive hub which fits over the splined shaft and bolts to the pulley with 2 bolts is described as a BUSH in the parts book with part number N-115060-A, in the I&T manual it is described as an ADAPTOR.

The seal between the hub and the pulley is described as a GASKET in the parts book with part number E1ADKN-115103, in the I&T manual it is described as an "O" RING.

Going to the other side of the pulley and the shaft housing bolted to the gearbox, in the end of the housing where the splined shaft comes out we have an item that is described in the parts book as a RETAINER with part number N-115080-B, and in the I&T manual this item is described as an OIL SEAL. Behind this item is the bearing described as such in both books. Although described as a retainer in the parts book on the illustration it does look to have something on the inner diameter making it look like an oil seal (or grease retainer).

It would seem logical that the "RETAINER 115080" or "OIL SEAL" is in fact actually an OIL SEAL or GREASE RETAINER, possibly a thin type seal not the spring loaded type. This would run on the smooth outer diameter of the pulley shaft just before the splines enter the pulley and would prevent oil escaping from the housing and running along the splines that enter the pulley.

I would guess that what you describe as a steel washer which has become heated and blued is in fact this seal or retainer. These seals would be like the "Dowty" washers used in hydraulic applications for sealing high pressure unions - a washer with a narrow rubber strip on the inner diameter. Whether you will be able to find anything similar from the hydraulic people I do not know, but it might be worth trying!

I have a scrap pulley here that I will dismantle out of interest at some point to see what the set up is.
1946 E27N, 1952 Major Diesel, 1959 Power Major, 1962 Dexta, 1962 Super Dexta, 1963 Super Dexta NP, 1964 Super Major NP, 1965 Super Dexta 3000, 1966 Major 4000, 1967 3000 PF, 1994 5640,plus Basildon built NH.
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Re: belt pulley - splines

Postby henk » Wed Oct 10, 2018 6:27 pm

Thanks for the comment.
The seal that came out looks different to the spring loaded types. It has a long flap instead of a small one like the regular types.
I wil put a spring loaded oil seal from 90 mm outside, 63,5 mm inside and 13 mm wide.
How I salve the outher seal, I will think about that and wait for your result.
Kind regards, Henk

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Re: belt pulley - splines

Postby henk » Thu Oct 11, 2018 8:30 pm

I found a paper seal on the spline side. It does not seem to hold any oil, but I think it's uses as a shim.
The ring I was talking about was not at the spline side but between the circlips and the gear on the other side and also used as a shim.

Image

Never seen a circlips like this one. On the Vbelt pulley was a normal one.

Image

This bearing was bad on both pulleys. Seems it's not getting enough oil when the tractor is standing horizontal.

Image

SKF number: 6406
R&M number HJ 30
Kind regards, Henk

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Re: belt pulley - splines

Postby Daves rusty bits » Thu Oct 11, 2018 9:30 pm

I think your circlip is a snap clip Henk, which basically does the same job as a circlip. I bent one which retains the bearing on the PTO shaft and spent ages straightening it as I couldn`t source a new one. My son tells me they often come with brake fitting kits at his garage and they throw them away as they are not needed.
1960 Power Major, 1975 International 475, 1981 John Deere 2140 - well no ones perfect.
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Re: belt pulley - splines

Postby mathias1 » Thu Oct 11, 2018 9:53 pm

henk wrote:Thanks for the comment.
The seal that came out looks different to the spring loaded types. It has a long flap instead of a small one like the regular types.
I wil put a spring loaded oil seal from 90 mm outside, 63,5 mm inside and 13 mm wide.
How I salve the outher seal, I will think about that and wait for your result.


Henk,

better take the imperial size, as that will be a closer fit.

I used 6406 and 6210 bearings. I got them from lagerboer.nl
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Re: belt pulley - splines

Postby henk » Fri Oct 12, 2018 9:47 pm

Ordered the bearing also there. It's the cheapest adres.
Kind regards, Henk

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Re: belt pulley - splines

Postby henk » Sat Oct 13, 2018 8:09 pm

I did not know Lagerboer is at Biervliet. Could of pick them up today visiting the National Championship ploughing at Biervliet.
Have them now allready in the house by parcel.

https://www.omroepzeeland.nl/nieuws/108 ... Hoofdplaat
Kind regards, Henk

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