RE: [alfa] remove the filler plug before the drain plug

["John Paradiso" <johnp@xxxxxxxxxxxxx>]

Imagine draining the diff and THEN discovering that the fill plug is
"welded" in place!

John



 

>-----Original Message-----
>From: owner-alfa@domain.elided [mailto:owner-alfa@domain.elided] On 
>Behalf Of Jay Mackro
>Sent: Thursday, July 01, 2004 11:30 AM
>To: alfa-digest@domain.elided
>Cc: dwc@domain.elided
>Subject: [alfa] remove the filler plug before the drain plug
>
>"Dean W. Cains" <dwc@domain.elided> had written:
>
>> And, always  remove the filler plug before the drain plug,
>> for reasons I'd rather not  remember, although a gearbox
>> was involved.
>
>Hmm - I can't figure out why that would be important.  At first
>I thought "sure, you need to let air into the differential in order
>for the fluid to drain quickly and completely".  But then I
>remembered that the diff has a little piece of hooked tubing
>welded to one of the axle tubes that admits outside air (I
>guess so that pressure can't build up inside the diff, and
>push oil out through the seals).
>
>So, why take out the filler plug first?  Is this like when you
>disconnect a battery, you remove the ground wire first?
>That one I understand.  Both differential plugs need to
>come out anyways when you are changing fluid, so I guess
>it doesn't hurt to start with the upper one.  But, why?
>
>Sorry to put you on the spot Dean - Jay Mackro
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