[AT] Oil Filter question

[Bill Brueck]

Sounds like different and conflicting experiences folks have had.  Got my
attention about the apparently common experience of scoring crankshafts.  

My experience is very limited, quantity 1 of a late model WC that my friend
had in my shop most of a winter while I helped him overhaul it.  That's the
one that ran for a season with no riser tube into the filter.  I'm a Deere
guy, was scared to death the Allis would jump the fence during the winter
and mess with my thoroughbred Deeres.  Didn't know what kind of mongrel I'd
have in the shed come spring.

So I guess our mileage really does vary, doesn't it.

Good discussion.

B²
 
Bill Brueck (brick)
Chatfield, MN, USA
 
Confusion is a higher state of knowledge than ignorance.
 

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Easley, Greg
Sent: Monday, July 11, 2005 10:31 AM
To: Antique tractor email discussion group
Subject: RE: [AT] Oil Filter question

I'm with Bill on this one.  My VAC Case works just fine with the new style
filters.
It makes just as big a mess while adjusting valve clearance with the pleated
type as it made with the old rag filters, so I'm confident that there's
plenty of oil moving through the galleries.  I've seen two VAC's that were
missing the riser tube from the filter housing, which essentially results in
total bypass of the filter - neither one of them had experienced any
lubrication related engine failure.  The Case feeds the oil pressure gauge
from a hole tapped in the crankcase at the center main bearing and there's
no noticable difference in pressure between the two filter types.  I
actually prefer the new style filter - the oil stays much cleaner between
changes than it did with the rag filters.

Greg
http://www.geocities.com/heartland/woods/1416

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Bill Brueck
Sent: Saturday, July 09, 2005 7:15 PM
To: 'Antique tractor email discussion group'
Subject: RE: [AT] Oil Filter question


Agreed, but experience on this particular project indicates that there may
be sufficient flow to deliver at least some oil even with the filter wide
open.  In this case the tractor was running without the little vertical
pipe; the filter wasn't even getting wet, and there was no pressure
registered at all on the gauge.  But I did have the valve cover off at that
time, adjusting the valve clearance.  There was a nice flow of oil up that
high on the engine.  And since it did have at least several hours of
operation, the mains were obviously getting lubrication.  I had forgotten,
or maybe never noticed, the cross-block line Cecil mentions, I don't know if
it that was running or not.

I'm still betting that with the pressure that remained with the new style
filter installed, the engine was getting plenty of lubrication (albeit less
than factory specified), especially considering the evidence that it may
have been getting sufficient lubrication even with no filter resistance at
all. 

B²
 
Bill Brueck (brick)
Chatfield, MN, USA

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