Lister A and H3 pump

Many thanks for the suggestion this is the only area i have not taken apart as all the things i see is it is very difficult to get the caps out

I will have to get some 1 Inch stuff to see if i can remove them

Thanks again Keith

Well yes the valve seats are certainly not great nor the valves

please see pictures below also lost a valve spring pin so not a great day

Any advice on how to best clean the valve seats

Many thanks Keith

More photos

Well after final getting the cylinder back from the engine shop after a expensive valve seat grind and valve reface i lapped in the valves and have reassembled and now have some compression have done all the settings as per the manual and still can't get her to run

i do get fuel running out of the governor throttle plate when trying to start her

I saw somewhere about the return from the carb must be set but can't find any more information on setting up the carb any help please

There are no settings for the carburettor, what state is the needle point, if the governor plate is leaking fuel you've opened the needle valve to much or the needle is badly worn, max 1.5 turns and the choke 3/4 closed, once started turn the fuel valve down until the engine runs even, only open the choke if running a load.

MaryAlice

Many thanks for this information i will try again tomorrow

I will take the needle out and photo do you have a photo of a good needle for me to compare to

Thanks again for the prompt response Keith

I can get a photo but it will take my mate and I half a day to reach my A for a picture, I will photograph my B type tomorrow basically the same carburettor

maryalice

please see pictures of my carb valve no matter where i set it it still seems to flood from the governor plate except when at the stop

I'll compare it to my Lister B this afternoon, it looks to have a groove in it from the picture which shouldn't be there.

maryalice

sorry for the poor pictures there is no grove there just a shadow

is there any way to check the seat of this valve that you know of

thanks again for your time keith

maryalice

more photos with better measurements as well

Now I see it in bigger pictures yours is similar to mine, I looked at it the first time from my phone, I've polished mine to make it easier to see. you can unscrew the nut underneath to take a look, I doubt if it will be damaged as it would show up on the needle.

maryalice

thanks for your picture yes it looks the same

another question please how do you set up the governor throttle to the plate and spring tension is there a rule of thumb

sorry trying to check everything which may have been incorrectly set by previous owners

Thanks again keith

The governor weights will be slack on the flywheel when not running, when the engine starts the throttle plate will be fully open but as the engine speeds up the weights will fly out and via the connecting rods will close the throttle until the adjustable spring hold it in balance, the looser the spring the slower the engine will run, off load it wont make a lot of difference.

Can you check the following, looking at the valve stems rotate the flywheel clockwise record the movement of the valves i.e. inlet valve rises and then falls then compression followed by the exhaust rising then falling and so on.

Maryalice

Also how do you know the magneto is anti clockwise, the more I look at your engine the more I think the mag should run clockwise.

Hold that thought I'm having a senior moment, on the back of the magneto, gear side, there will be an arrow, looking at the gear which way does the arrow go.

maryalice

please see picture of the governor throttle set up i will have a go again tomorrow at trying to get her to start

and check your other comments i have set the timing to the mark on the fly wheel which i have since found by cleaning the paint of

thanks again for your help hopefully soon she will run

Its a good job I have a laptop that I can flip over to look at your pictures the governor is set correctly

maryalice

sorry to bother you again she did start for a few seconds and then stopped still struggling to get the carb to stop flooding so took of and cleaned again also cleaned the top wheel

found this on the top see picture as a later version of the Lister A how many turns out should this be or is this set from the stop position

Many thanks Keith

With the tap shut note the position, then open the tap so that start is now in the same place as the stop, when it fires turn the tap back to normal or where ever the engine runs even. Over time this will be second nature.

Maryalice

Many thanks for this information i will give it a Try as soon as i can

Thanks again for all your help

Regards Keith