Remote Oil Filter B40/B44

Here you can talk about all kind of TECH for the B50 B44 B25 And Other BSA unit Singles

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csx355
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Remote Oil Filter B40/B44

Post by csx355 » Wed Apr 10, 2019 5:04 pm

Hi all - I am in the process of building (and re-building!) 2 B44 motors and have a B40 motor waiting for similar attention. Ideall I want to give them the best start in life and am thinking about the addition of an external spin on oil filter set up. So my questions are.
1. Good move or not?
2.Any one had experience of these?https://www.ebay.co.uk/itm/Remote-Oil-f ... Sw-K9ZHK0Q
3. does the orientation make a difference?
And - Excuse the ignorance -
4. are they fitted on the supply or return side?
Thanks in advance.

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madsundaysurvivor
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Re: Remote Oil Filter B40/B44

Post by madsundaysurvivor » Wed Apr 10, 2019 6:53 pm

Hello csx,

I have mounted on my bsa b25 one like the one you indicate in the return oil pipe you need that the pumb pushes towards the filter. But I have not tried it yet. It worked well on other bikes.
what is important, is to know what pressure opens baypass valve of the filter element when the filter may block, and if your engine able to open it because in the BSA, the oil will take the easiest way and send much oil to the rokers instead of returning to the tank. The same for the anti-return valve. Each manufacturer indicates what pressure their valve Works.

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Re: Remote Oil Filter B40/B44

Post by Barry Creary » Wed Apr 10, 2019 9:18 pm

I did the same on my B50 return line and it works well but I've see some posts here were others have had wet stumping and oil pushed out the breather. There has been some talk about this subject maybe the mighty moderator <936 could step in here.

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Re: Remote Oil Filter B40/B44

Post by skippy » Wed Apr 10, 2019 11:31 pm

I have one on my B50 it look exactly like that one, sold as a Norton filter. It works so far but i have direct oil pressure for the rockers.
Doug
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Re: Remote Oil Filter B40/B44

Post by Jeff K » Thu Apr 11, 2019 1:46 am

That looks to be a generic copy of the 850 Norton oil filter. I would recommend using a filter, many pluses for. We fit one tucked in behind the motor on the B40 cafe with the B25 frame, just had to weld a small wedge to the frame and it bolted right on. You can hardly see it and yet it is easy to get at and to change out. The Norton filter was also used by certain Harleys so they are easy to find.
Jeff
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B40 RH engine.jpg
B25 oil filter 1.jpg

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Re: Remote Oil Filter B40/B44

Post by Jeff K » Thu Apr 11, 2019 1:53 am

I purchased several of these from Ed V. Same basic set up, many versions out there, mostly they are copies of the Norton one. Another plus is you add a little more oil capacity to the bike. Here is the link to ED V's one. Chrome is $8.00 more. :grin:

https://shop.shopevengineering.com/Oil- ... ogId=-2087

Jeff

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Re: Remote Oil Filter B40/B44

Post by minetymenace » Thu Apr 11, 2019 7:10 am

There are many posts on this subject, try doing a search for "Remote oil filter"....too many results to list the best.

Precis:
Fitted in the return you get clean oil in the tank
Fitted in the flow, you get clean oil in the engine but blocked filter is bye-bye engine.
Best place is between pump and big end, but this involves re-plumbing the engine.
Spin on filter is most convenient, as opposed to the standard cartridge or Hidi-hi filter wgich uses the tripple filter.
etc etc
There is no evidence to support the notion that life is serious.
Abyssinian Wire-Haired Tripehounds Gnash.

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Re: Remote Oil Filter B40/B44

Post by BSA_WM20 » Thu Apr 11, 2019 10:14 am

And it does make a difference which way the pipes are connected if the filter cartridge has a back flow valve.
I use a similar filter but threaded 3/4 x 16 NP.
Thus I can use lawn mower filters rather than car filters as I can get them very cheap .
Mower filters all have very low bypass valves and no back flow valves.
They also run at very low pressures so well suited to use on motorcycles.

Take the effort to make a bracket so the filter points down .
This makes them very clean to replace and you can fill the filter before you replace them.
Bike Beesa
Trevor

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Re: Remote Oil Filter B40/B44

Post by Jeff K » Thu Apr 11, 2019 2:48 pm

I find that it does not matter how the filter is pointing. I slide a low tin pan under it when am changing the oil and the filter to catch the oil. And you would be surprised how much oil you can put into the filter and still tip it over to thread it on with out it leaking out. Most of your car filters are on a angle anymore.
Jeff

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Re: Remote Oil Filter B40/B44

Post by Ian Hingley » Thu Apr 11, 2019 9:01 pm

I use a Hide-de-hi. Very slim and uses a Rocket 3 filter.

Used for years in return line with no issues whatsoever.

Just googled and found one of my own replies from 2011, so I've used it over 8 years!

viewtopic.php?t=3965

Ian
66 BSA Victor Enduro, 72 BSA Lightning, 62 BSA B40 trials, 89 H*nda Bros 650, 96 Aprilia Moto 6.5, 2000 Aprilia Moto 6.5

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Re: Remote Oil Filter B40/B44

Post by tridentperu » Fri Apr 12, 2019 7:14 pm

I use a return line filter on both B25 and B44 motors with no issues. I get mine from dave Madigan in the US - it uses a small cheap hi flo filter meant for a H***a dirt bike and fits up behind the motor above the frame tubes, so well protected.
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