[AT] Problem with JD 40

[John B]

Sounds to me like you have air in the hydraulic system. The hydraulic pump is on front of the engine, with the hydraulic lines passing directly over the gas tank and under the hood on their way back to the hydraulic valve control under the seat. Check the oil level in the valve control unit. The hydraulic system's oil is a closed system that does not mix with the transmission fluid, engine oil, or anything else. If that does not help, there may be a loose fitting in one of the hydraulic line fittings that is allowing air to enter the lines.

John Boehm
Woodland, CA
Visit my web site at http://vintagetractors.com




--- On Wed, 12/3/08, LeRoy Price III <leroy_price3 at hotmail.com> wrote:

> From: LeRoy Price III <leroy_price3 at hotmail.com>
> Subject: [AT] Problem with JD 40
> To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
> Date: Wednesday, December 3, 2008, 11:08 AM
> Guys, I need some help.  I took off today in order to start
> a few tractors.  I started with my JD 40 (1956).  I got it
> started
> and I'm getting a weird noise and its not from the
> engine.  It appears to be coming from the gas tank area. 
> The noise is like
> a loud vibration and I just don't see what it could be.
>  The last time I ran it in late spring, it was fine.  I also
> check a few of
> the oil levels and found that the transmission oil is milky
> which say that water got into it correct?  Should I drain it
> for the 
> winter?  Or should I drain it and fill it with kerosine and
> let it sit until spring?  These are outside under tarps so I
> just want
> to get them running and let them run for a while but this
> noise bugs me.
>  
> If anyone want to give me a call on my cell its
> 484-226-0487.
>  
> LeRoy
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