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350 cc side valve JAP engine parts needed

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Mobike:
Firstly thank you for your replies,hopefully someone has knowledge of these engines ?
I have an interest in "all" things old,especially mechanical!
Currently my house is up for sale and my "new mower" will be another "vintage one"!
Yes,well spotted it was running for about 30 seconds !
Until the oil pump I was fixated on from the first cough,failed to show any oil ! I have since primed both flow pipes from tank to pump,and from pump  to the engine along with the pump sight glass...is it meant to be full or just a trickle?
I have since ran it briefly ,to check "flow ?"but having no idea what the pump output should be ,I have decided to hold off running it and ask for help from hopefully the " more knowledgable  " on here.
In my experience other enthusiasts usually soak up useful information not always freely available elsewhere!
I have tried Google searches with little results,so thought as its a "mower engine"I would try a  mower forum.
At this moment information  is the main thing  I need.a replacement pump possibly.An exhaust nut so I can fit a "proper "down pipe on and I have removed the ridiculous bell mouth exhaust trumpet!
And yes correct on spotting it was on eBay .
I have a 51 AJS 500 m18,a54 BSA B31 350cc,on the road to get my classic bike fix  ,a 1946 c11 (girder forks,rigid rear)250ohv.project (getting close).
I bought this as a bit of fun. i obtained it  for what i felt was "the right price and I have 3 spare ("correct"engines I can put in this frame if not,though I m hopeful if it Can be made to run properly?
The mag was rebuilt a couple of years back,as was the villiers carb.
I would appreciate any help regarding the oil pump ( it appears adjustable ?)is it meant to be just a drip?
Also how to set up the Villiers  carb  correctly,the timing seems to be ok.
It has good compression but I feel it is not set up (carb)
Any helpful input would be appreciated.
Many thanks,David

chaterlea25:
Hi David,
It looks like a Pilgrim pump ?
Yes, they are adjustable
Unscrew the adjusting wheel at least one full turn from fully clockwise and run the engine to see if there's some action
You could prime the engine by adding about 150ml of oil to the crankcase through the union on top of the crankcase
This will give enough oil to the engine for quite a while
A rough guide to the pump setting is about 8 drops a minute with a slow running engine
"Petes Bikes" advertise Pilgrim pump repairs and parts in Old Bike Mart
IKBA about Villiers carbs
Meetens may have an exhaust nut? or butter up a mate with a lathe

John

33d6:
So, you don't really want parts so much as information. That makes life a bit easier.
First, the Pilgrim Pump. As well as Chaterleas advice there is plentiful info in the VMCC Library. It's open to non members and you want a copy of the Bob McGrath Pilgrim booklet which will give you chapter and verse.
Second, all Villiers motorcycle carbs are intended solely for two -strokes running on a mixture of petrol and oil and are jetted accordingly. No information exists on adapting them to elderly four stroke engines. You really are on your own there unless you find another tragic who has gone down this path before you. Your sanity requires fitting a more appropriate carb such as an AMAL as on your B31.
Third, the engine itself. Give us the engine number details and we can date it. Even the spares for that matter. Being fitted with the Pilgrim pump shows it has a total loss oiling system so don't let the oil tank get below about a third full.
General J.A.P. info abounds in both the VMCC Library and the NMM bookshop. Lawnmower forums are an obvious point of call as well.
Finally, what is the engine mounted in? What are the cycle parts? A photo would be nice. The deal is we give what help we can. You provide pretty pictures to keep us happy.
Looking forward to the next instalment. Cheers,

mini-me:
This "bike"  an assemblage of random unrelated  parts, has been on here before sometime back.

There is nothing pretty about it. :(

Mobike:
Many thanks to those with" useful information,"as has been mentioned an Amal carb may be the easiest answer !(thanks Chater lea)
I have several so will look up what I have that may be compatible as the engine has inlet stub not flange.
Apparently Villiers owned JAP post WW2 and as far as I  can tell from the sparse information  ?the carb is correct for this engine.
I bought this as it has a nice Bsa c11 plunger frame 1954 (stove enammeled) ,forks,wheels etc in fair order even what chrome is fitted is sound.The four speed gear box selects gears nicely.
The engine is an Industrial unit as denoted by its "I" preceding the engine number I believe 1936 vintage originally fitted to an Atco "deluxe" 20" mower.
It is"as bought by me",I was not responsible for killing any machines or mowers,possibly I may( when I 've had  my fun tinkering )remember that ? even return it back to its roots (c11)
After cleaning the carb and adjusting the oil pump it does (now) run and seems to be moving oil.
Once again ,thanks to those  for your "helpful"assistance ,I will look up on the VMCC website ,as a paying member might as well enjoy the benefits!
Tragic ? Yes some really do need to lighten up!
Happy days

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