<VV> Filter first?

[Frank DuVal]

Yes, I also find this true on most engines of any make. The paths from 
the oil filter to the crankcase will not drain easily (like a soda straw 
with your finger on the top) until the filter is removed. Crankcase vent 
and oil cap are not in the circuit.

Frank DuVal

J R Read wrote:

> Frank,
>
> You are right, it does not really matter which order.  But, I find 
> that if I drain the pan and then remove the filter, the flow from the 
> pan increases once the seal at the filter is loose.  This happens even 
> if I have removed the filler cap.  So, now you have TWO reasons to 
> remove the filter first.
>
> Later, JR
>
>
> ----- Original Message ----- From: "Frank DuVal" <corvairduval at cox.net>
> To: <virtualvairs at corvair.org>
> Sent: Wednesday, September 08, 2010 7:47 PM
> Subject: Re: <VV> Filter first?
>
>
>> It doesn't matter how you do it, but you made me think that on every oil
>> change on every car I have always removed the filter first.
>>
>> In my case it is easier to drain the filter into the empty oil catch
>> pan, especially since I normally drop it at some point, and picking it
>> up out of an empty pan is easier. And much less splashing! Don't ask how
>> I know.... Of course if I dropped the Corvair filter into the pan I must
>> really be doing some gymnastics! ggg  Or the perimeter seal and rear
>> sheet metal needs replacing.
>>
>> I also let the engine sit a while with both the filter off and drain
>> plug out.
>>
>> Frank DuVal
>
>
>
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