[AT] Gearbox breather plug

[charlie hill]

Opps reading your original post I see that your plug is solid.
Still you can drill it through the center almost to the top and
then cross drill it, so that the holes intersect.  Drill the vertical
hole large enough that you won't have trouble hitting it with the
cross drill.

-----Original Message----- 
From: Mike M 
Sent: Monday, June 12, 2017 11:20 AM 
To: Antique tractor email discussion group 
Subject: Re: [AT] Gearbox breather plug 

Thanks Cecil, my plug is a solid plug with no hollow area in it. I'll 
drill it length wise and try the cotter pin idea.

Mike M

ps - tried to reply directly, but your isp doesn't like my email provider:)

On 6/12/2017 8:39 AM, Cecil Bearden wrote:
> I would drill a 1/8"hole in the plug.  If the plug you have is hollow 
> up  in the square end of the plug, then I would drill the hole 
> sideways.  If not then drill the center nearly to the end, then drill 
> sideways until you intersect your previous hole.  Or drill straight 
> through, install a cotter pin to keep it clear and cover the box when 
> stored..  Weather changes will cause a box to suck oil in at the input 
> shaft.  I also would use corn picker grease  or called 00 grease.
>
> Cecil in OKla
>
>
> On 6/11/2017 11:34 PM, Mike M wrote:
>> Hi all, I have JD 513 rotary mower, and am getting set to cut my fields
>> while we have a dry spell. When I first bought the mower, the oil was
>> milky, so I changed it, and it ran fine for the next 3 years. Today, I
>> checked the oil, and the level was fine, but it was milky again. It's
>> either been stored under cover, or had a 5 gallon plastic pail over the
>> gearbox. I noticed one thing in particular tonight, and that is the
>> gearbox is not vented. Neither the fill or the check plugs have breather
>> holes in them. I bought this at an auction so the previous history is
>> unknown, but I was under the impression that all gearboxes needed a way
>> to vent. I'm not losing oil through any seals at this point, so that is
>> good. Any thoughts would be appreciated.
>>
>> Thanks,
>> Mike M
>>
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