New Toy, Bamford tulip top

im finding it very difficult to understand how this engine works, as John as seen it now he may be able to answer for me later i hope lol

Dosnt the piston withdrawing pull fuel up into the bowl of the carburettor then the another withdrawal pulls it into the cylinder? my granddads backfired and the fuel in the bowl caught on fire, got rid of it quite quick.

Cheers, Steve

Skankin_giant wrote:Dosnt the piston withdrawing pull fuel up into the bowl of the carburettor then the another withdrawal pulls it into the cylinder? my granddads backfired and the fuel in the bowl caught on fire, got rid of it quite quick.

Cheers, Steve

its getting it up to the cylinder thats the probelm, i could imagine that fuel bowl catching fire, that side of things wasnt a very good design, but they probely didnt expect that to happen, did they change later models???????

could just be a good strip and a clean then mate.

Cheers Steve

when we removed the mag/ignitor set up and sprayed fuel directly into the chamber. will have to take closer look tommorow

ah i think it could be that the sealing between the carb and the engine could be a bit ineffective, the engine might be sucking air in rather than producing a vacuum for the fuel, like steve says, strip the carb down, clean and flatten the joints and provide new gaskets/seals to make it airtight. i hope that helps

if i'm honest ryan, the hit and miss principle escapes me, i just cant see the point, but it obviously worked (for a while )

if i had one myself i'd probably be able to give a better answer, but what i've said is the best i can come up with, if its no better come june we'll fix it at the 1000 engine!! hahaha, and you can beat up some gobsh1tes!!!!!!!!

Paul

Erm where is the fuel bowl then? its just a pipe from the tank, through a needle valve(controling the ammount of fuel to be let through) then mixed with air and drawn into the cylinder for combustion.....

Or did I miss something???

Lister John wrote:Erm where is the fuel bowl then? its just a pipe from the tank, through a needle valve(controling the ammount of fuel to be let through) then mixed with air and drawn into the cylinder for combustion.....

Or did I miss something???

remember when we tipped the tank to ensure fuel was running through ok, it went in a kinda dish shape thing and kinda like an over flo tray, thats the fuel bowl lol, ( I think)

Thats the Bowl, from what i seen they changed on later engines.



Cheers Steve

Thats strange, A fuel bowl open to the air?

So how does it draw up the fuel then? because there is quite a big gap for it to draw up from. And it didnt seem to suck the fuel in when that bowl was full.

interesting one here.

Is more of a reservoir, its the same for alot of engines with atmospheric intake valves, the fuel sit there open to the air and when the piston withdraws its sucks in the required amount of air and fuel, as well as pulling more fuel up the the reservoir. if you get what i mean?

Cheers, Steve

The carb on the Sattley is similar the fuel sits just behind the choke until needed.



Cheers, Steve

when you think about it, fuel expose, while 15cm above, an explosion is taking place. Glad they changed it, although i bet they learnt the hard way

That type on the Bamford set my Granddad on fire when it backfired, he would never have another Bamford after it.

Cheers, Steve

perhaps on the grounds of safety you might like to fit a low pressure non return valve to the fuel pipe ryan?

Paul

Interesting, Thanks for the explination

Skankin_giant wrote:That type on the Bamford set my Granddad on fire when it backfired, he would never have another Bamford after it.

Cheers, Steve

Never mind Ryan, I will bring me fire extinguisher and put ya out mate!!!!!!!

mounting one to the trailer

ryan wrote:mounting one to the trailer

Our you could get one of those flame suits like the F1 drivers have..............

Would love to see yer face when you first start her up bud.



Cheers

Mart.

Or flinch every time something goes "POP"

Cheers, Steve

I can see me doing my party trick and holding me ears haha

Adam

ryan wrote:mounting one to the trailer

make sure its dry power water wont do you much good lol.

Paul

did you find some one to look at the mag?

CHeers Steve

Skankin_giant wrote:did you find some one to look at the mag?

CHeers Steve

Ryans having it fixed by a local chap (Kerwin)

Hopefully wont be too long now!......

Oh yea i know Kerwin, didnt no if he went with Terry up St Newlyn East.

Cheers Steve