Getting Gwen the Mini to Run.

DanClarke said:

Good job the dizzy I have ordered has vac-advance then. What is on there now does not.
I don't think the carb float/valve is goosed because there is no petrol coming out of the plumbed-in overflow so I guess it must be shutting off like it should. I will put the new dizzy on and see what happens, I think the needle in the carb is BBE/D but I have no idea whether that's appropriate or not. I will hoik it out to check.

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Needles are a whole new can of worms, they is thick for economy and thin for power, you want a tapered one , thick at top and thi at bottom, I never bothered with numbers, just got one that looked about right and filed it to suit, Mini engine very basic, give it fuel and it goes, more fuel and it goes faster

landowner said:

Needles are a whole new can of worms, they is thick for economy and thin for power, you want a tapered one , thick at top and thi at bottom, I never bothered with numbers, just got one that looked about right and filed it to suit, Mini engine very basic, give it fuel and it goes, more fuel and it goes faster

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Tuning the carb while driving down the road with the speedo removed was always fun.purpose built big hole
to do this… who needs a rolling road in the 80s

landowner said:

Cam is stamped on the end so could take timing gear off and have a look

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Thinking about it, and rereading the book, this isn't always the case, sometimes it's a question of counting rings further along the shaft, and stuff like that.
Which is why, if he can be bovvad, he could use a DTI on the ends of the rods that ride on the cam followers, or that end of the rocker, which would be more approximate still, possibly too much so, and tie this in with the position on the crankshaft pulley, to give him an idea of lift and cam lobe angles.

Stanleysteamer said:

Thinking about it, and rereading the book, this isn't always the case, sometimes it's a question of counting rings further along the shaft, and stuff like that.
Which is why, if he can be bovvad, he could use a DTI on the ends of the rods that ride on the cam followers, or that end of the rocker, which would be more approximate still, possibly too much so, and tie this in with the position on the crankshaft pulley, to give him an idea of lift and cam lobe angles.

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Quick update:
Yes I can be bovva'd I have a dti and/or a digital vernier to measure how far the cam/pushrod/rocker pushes the valve down.
I wonder if there is a table of "if it does this amount of valve opening then it means its an"XYZ" cam". I know it is not just the cam "lift" that is involved and also the cam timing and overlap (if any).
My new Dizzy has arrived ..... but so has the pouring rain. So no playtime today probably.
Still waiting on some new HT leads and the vac-advance line and its end caps to appear, but that's not a reason not to get started, just incidental. It is not going anywhere (literally).

Further updates as and when I promise.

DanClarke said:

My new Dizzy has arrived

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And I have now found that you went for elecy dizzy, so some of my earlier comments may not count.

As for cam data have a look at this


Kent probably do them too.

But right now I think that's the least of your worries. Regardless of cam it should run (maybe a bit lumpy at idle) but it should run and drive ok.

J