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Ford 9N, 2N & 8N Discussion Forum

Now where did that spring come from?

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SAm in NS

02-16-2004 17:41:49

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After my friend replaced the gearbox and rear end as well as did some hydraulic work on his Ford 8N we found a spring on the floor. No one knows where it came from but it seems fairly clean and oily so we thought it may be important. I have posted a picture of it on the help identify gallery and have hopefully (this is my first attempt) attached a link to it. If anyone knows where this spring belongs it would be much appreciated before the tractor is fully reassembled. Thanks, SAm in NS

Unknown spring

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don b

02-17-2004 11:58:51

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Re: Now where did that spring come from? in reply to SAm in NS, 02-16-2004 17:41:49

Did you have the control valves out of the pump?Looks like it may go behind the control valve. don

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Willy-N YES!

02-17-2004 14:25:13

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Re: Re: Now where did that spring come from? in reply to don b, 02-17-2004 11:58:51

Don your right I forgot about the Valve Chamber springs looks just like one. I wonder if they had the pump apart? Mark H.

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Dell (WA)

02-17-2004 09:27:51

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Re: Now where did that spring come from? in reply to SAm in NS, 02-16-2004 17:41:49

Sam..... .....looks like your 4" long spring is p/n 8N-539-B, draft control linkage spring, 4.12 free length X 0.75 OD.

While Willy N shows a picture of a thicker wire control spring in his pic-2 grouping than what I would judge to be your posted spring photo. (its sometimes hard to judge photos)

The draft linkage control spring is on a clevis'd rod that is swivel attached to the long down pointing valve control rod.

HINT: count your springs on your hydraulic control linkages, you should have 2. If'n spring count is correct, then someone "lost" a lighter weight spring and couldn't find it..... ...Dell

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SAm in NS

02-17-2004 13:32:40

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Re: Re: Now where did that spring come from? in reply to Dell (WA), 02-17-2004 09:27:51

We have both of the springs in the top cover and they are both (they look like the ones in the second photo posted by Willy-N) significantly heavier than this spring. I'm fairly certain this wasn't on the floor before as the floor has been swept several times during the job and the spring seems clean and oily which means it can't have been on the floor very long (using cat litter to sop up oil spills spreads plenty of dust around). Thanks, SAm in NS

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Dell (WA)

02-17-2004 13:54:31

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Re: Re: Re: Now where did that spring come from? in reply to SAm in NS, 02-17-2004 13:32:40

Sam..... ...most of the springs on the N-Tractor are "tension" springs with hooks, not compression springs. The hydraulic pump control valve assy, has 1.25" long compression springs. The oilpressure relief spring is 2" long. The throttle shaft tension spring is 2" long. Obviously NOT engine intake/exhaust valve spring.

Brakeshoe springs are tension springs with hooks. Clutch throw-out bearing return springs have hooks. Governor rod return spring has hooks. Obviously NOT the ittty-bitty centrifical advance weight springs in distributor. Throttle return spring has hooks. Obviously NOT the 3-point toplink spring.

I don't think it came off your 8N tractor..... ..Dell

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Jeb2N

02-17-2004 05:14:32

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Re: Now where did that spring come from? in reply to SAm in NS, 02-16-2004 17:41:49

Yeah, to me that also looks like the oil pressure releif spring.

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Willy-N Pic1

02-16-2004 20:25:57

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Re: Now where did that spring come from? in reply to SAm in NS, 02-16-2004 17:41:49

Here is the Throttle Spring That I thought it might be because of how thick it looks. Mark H.

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Willy-N PIC 2

02-16-2004 20:30:37

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Re: Re: Now where did that spring come from? in reply to Willy-N Pic1, 02-16-2004 20:25:57

Here are the Hydraulic Lift Linkage Springs and they apear to be thicker then the one in your picture?? Pictures can be deciving to. Mark H.

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SAm in NS

02-17-2004 06:25:12

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Re: Re: Re: Now where did that spring come from? in reply to Willy-N PIC 2, 02-16-2004 20:30:37

We have had the top plate of the hydraulics apart but it is a much lighter spring than either of the two that were on there. Thanks, SAm in NS

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EDDIE8N

02-16-2004 19:19:19

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Re: Now where did that spring come from? in reply to SAm in NS, 02-16-2004 17:41:49

SAm,
You say you guys were doing hydraulic work?
Did you happen to remove the top cover plate on the hydraulics and work on the linkage for the draft and position control?
By scaling the spring (dia.) to the rule in the photo, I come up with a dia. of approximately 1/2".
According to Master Parts Book spring on the draft control is 4.12 long and .75 OD.
The spring on the position control looks a tad shorter and fits over a 7/16 bolt.
You said the spring was oily...I would guess it came from somwhere inside the tractor.
If I were to lay a bet on this, I would say the position control rod spring.
HTH,
EDDIE8N

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Willy-N

02-16-2004 18:34:41

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Re: Now where did that spring come from? in reply to SAm in NS, 02-16-2004 17:41:49

That looks like a Oil ByPass Valve Spring to me. A little long for the Transmission detent spring on the top of the case under the shifter. But a little light for the spring in the Top Plate on the lift controls. Did you do any work on the engine that you may have pulled the Oil ByPass Valve out? Mark H.

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Willy-N Here?

02-16-2004 18:42:10

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Re: Re: Now where did that spring come from? in reply to Willy-N, 02-16-2004 18:34:41

I thought the spring was 2 inches long at first. I bet it is off the bottom of you throttle lever on the dash to hold tention on the Throttle. Did you have the dash apart? Mark H.

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SAm in NS

02-17-2004 06:22:59

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Re: Re: Re: Now where did that spring come from? in reply to Willy-N Here?, 02-16-2004 18:42:10

We have only just taken the dash apart and I know which spring you mean but this isn't it, that one was very corroded and needs to be replaced. Thanks, SAm in NS

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