[6pack] Crossland oil filter

[Sally or Dick Taylor]

Don Erickson's patience with me finally showed that the oi bipass valve really does open the way he said, and the Bentley showed. I took the spare by-pass valve that I had and soaked it in thinner and WD-40 overnight and viola! The valve actually did open the way Don said it should. It took an icepick down thru he small holes and more force that I thought it would, but it did open!  
Thanks again, Don.

Dick


-----Original Message-----
From: Don Erickson
Sent: Sunday, May 31, 2009 9:14 AM
To: Sally or Dick Taylor
Cc: John Mitchell, 6-Pack, triumphs at autox.team.net
Subject: Re: [6pack] Crossland oil filter

On Sun, 31 May 2009, Sally or Dick Taylor wrote:

> Don---Thanks for continuing on this. Maybe I just have the filter parts 
> stacked wrong, but it looks like oil can't go anyway but thru the middle 
> of the filter to the outside..


I managed to find my old filter housing, and I think I see what you're 
saying.  But the obvious spring that presses against the housing and 
filter spacer/centerer at the bolt head is not the by-pass spring, it just 
holds the spacer and thus the paper element against the block and doesn't 
move nor change it's pressure as long as the filter is in place.

Look closely at the inside of that round spacer, there's another spring 
inside of it that IS the by-pass spring, this is the spring that gets 
compressed by the oil pressure coming from the outside of the filter.

You're assuming that the spacer flange is the bypass valve seat. 
Rather, the valve seat is inside of the spacer and is lifted open going 
the other direction.

That's got to be how it works.  All round filters filter outside-in, I've 
never heard of an exception to this rule.  It's also what the Bentry 
manual shows.

It's not necessarily intuitive, but that's my story.

Regards,

-Don