[Mgs] MGA spin-on oil filter

[Paul Hunt]

As far as recommendations go I gave up on Fram PH2857A for my MGB as I found 
they drained back and gave a long pressure rise time, worse than any other 
filter I tried.  The Volvo 3517857-3 is the best out of several I have tried 
for that, but 2 out of 3 have had the rubber seal twist up on fitting and 
shot a jet of oil out on first start up before sealing themselves, this is 
with less than half a turn of tightening after the seal makes contact, when 
other filters recommend 3/4.  Comparing the diameter of the seal ring it 
*is* slightly smaller than book recommended filters, whether this is 
something to do with it I don't know.  Te canister is also shorter, so on 
the face of it less filtration material, but when peering inside clean 
filters that seems to be more to do with the design of the internal bypass 
valve, the length of the filtration cartridge seems to be very similar at 
2.57" compared to 2.785" for a Champion, whereas the external heights are 
3.25" and 4" respectively.  I haven't sectioned any though.  If you have the 
anti-drainback tube fitted to the filter head the internal depth of the 
filter *must* exceed this by at least half an inch, some filters are too 
short and screw down onto the end of the tube which results in zero oil 
pressure on startup.  But if it's a hanging spin-on, then probably little of 
the above applies.

PaulH.

----- Original Message ----- 
>>  Any recommendations for brand?