in -line oil filter

[manormike]

The BSA racing boys clearly knew something about the oil system which was not required or acceptable (to the cost accountants?) for normal production. Plain bearing motors require clean oil. And in general it is particulate running round and round the system which accelerate wear. Hence the full flow filter anywhere practical in the loop does a good job.

The Daytona restoration/replica guys persuaded Vokes successors (British Filters?) to make new filters to the old drawings. Shame they did not (AFAIK) to set up to produce a bigger batch. Surely there would be a healthy market for a neat period looking filter. The earlier element was wire supported gauze, and washable. Later ones in similar envelope were paper.   

[muskrat]

 G'day all.
Just fitted a sNorton type (uses Ducati filters) to the '64. Took a while to make brackets and plumb. As I started the bike the wife walked in. After a minute ( I was waiting for return to the oil tank) she asked about the black stuff running over the floor. Guess who didn't tighten the filter. DOH
Cheers

[isuzu]

Hi, I'm a new A7 owner and want to place a filter in the return line too. I have one question though before I will cut  up oil lines etc; what do you with the plumbing to the filter and back to the tank.
Is it possible to cut the 8 mm metal pipe you see between the union on the tank and the flex part (cut right in the middle so you can put a rubber hose on both sides), put a rubber hose on it to the oilfilter and from the oilfilter put a rubber hose on to the 8 mm pipe back into the tank?
Or do I need another flex return line?

Groetjes Dick

[muskrat]

G'day isuzu, welcome to the forum.
                                               What model do you have? Sounds like a plunger or earlier.
Cheers

[isuzu]

Thanks for the pic's. I have a "56 swing arm A7. At the tank the return is a kind of 8 mm elbow pipe. So this is another situation. I could cut the elbow right in the corner, but it do'nt leave much "flesh" to put the oil lines to. So that's why I am curious how others did this.

gr
Dick

[muskrat]

 G'day Dick,
                I wouldn't go cutting any hard pipes or fittings. Lengthen and re-rout the flexable return line before it branches for the rocker box. That way the oil going to the rocker box gets filtered twice (sort of).
Cheers

[Brian]

I fitted my filter underneath the ski slope. I removed the oil line from the old fittings and used new tubing to "plumb" it.

The filter I used is a long skinny type that uses the BSA/Triumph triple filters. With my set up I have to remove the ski slope to change the filter but that only takes a few minutes.

The whole set up is very concealed and you have to look close to even know it has a filter fitted.

There are a few types available, here is one mob who make one specific to A10's.

http://www.britcycle.com/products/631Series001.htm

[isuzu]

Thanks for the replies guys;
I will cut the braided return, lenghten it with 8 mm pipe / rubber hoses. The filter Brian suggests is a really nice one. But can't find one in Holland where I live, so I go for the Norton filter instead which is easy to get.

groetjes

Dick

[muskrat]

 The sNorton type filter head takes Ducati 900/750 filters. RF153.
Cheers

[0116harley]

Hi everyone
Ive been considering fitting an oil filter kit, and and theres some good ideas about places to mount them, but my question is as i only cover about 1500_3000 miles a year. And change the oil every year would i really gain anything buy fitting one of these kits
thanks neil 

[muskrat]

 G'day Neil,
               the short answer is yes.
 Cheers

[Rocket Racer]

Just as importantly, if fitting a return line filter. Make sure your oil tank is flushed out nice and clean. As crud already in the tank wont get filtered!

[muskrat]

Till after it's been through the motor. Good point RR. Don't think anyone would neglect that, but then again!
Cheers

[Pete Gray]

I've been fitting a Paul Goff supplied filter, it sits nicely in the tool box with the pipe work being routed between the battery and mudguard. I have retained the armoured oil pipes to the engine and made return side connections with off the shelf 1/4" BSP fittings from local hydraulic supplier (Pauls kit assumes using new rubber hose to the return side)

Finally got round to filling up and testing yesterday which gave a nervous couple of minutes running the motor until oil emerged from the return pipe,  I had tried to get circulation by turning the engine over  on the kickstart (plugs out) but no chance. I had filled the new cartidge with oil but I suppose there's a fair bit of pipe to load up on a dry start.

All in all it looks a good solution to give improved filtration and is, at a glance, an invisible modification.