Hitchcocks Forum

Even when I put 2.5 litres of oil into my 1951 350 Bullet it still does not register on the dipstick!
So just to make sure I have the right 'stick' could some of you fine folk with a similar age bike measure the high and low mark position please?
I measured from the filler neck contact surface and got, high=84mm and low=128mm. Many thanks.

Dims sound ok...


What height is the top of the oil tank filler neck from the top of the case?


Do you have a modified recirculating eng breather that is connected to an extension of the oil tank filler neck, with the wrong (not long enough) dip stick?


You do have the sump-plug in?

Just a point of interest until you get an answer. When I first changed the oil on my 2000-500 Bullet, I poured in 2.5 litres and it filled right up to the top of the filler spout, I had to drain it again, oh what joy, I was an idiot.

Charlie, what does your dipstick look like? (No jokes please!) The reason I ask is that the dipstick fitted to a 1951 350 is just a piece of wire with no markings. If you have marks already it may mean it's the wrong one or wrongly marked.

REgards, Mark

Oops apologies to Tim, Leon and Mark it was very rude of me to post and then not check replies. That's good information and really interesting, my dipstick is a flat blade approx 5 X 2 mm with a high and low line stamped on it! Looks like I have the wrong part, please tell me Mark what does the unmarked piece of wire do? I think for now I will fill to volume and make a note of where the oil level is inside the tank, there is a bulge in the crankcase casting at just the right point! Thanks again for the help it is greatly appreciated.

By the way Tim, yes sump plug is in and the filler neck looks standard. Cheers