Just rebuilt my grandfathers 1951 8N, and have a slight miss at low and high idle. Everything is new (distributor, wiring, plugs, points, condenser, distributor cap, coil, voltage regulator, etc.). I'm using the original rebuilt carburetor, because I couldn't even get it started with a new carburetor. Compression is good using the compression tester I have, but isn't fully operational. Appears to be over a 100 lbs on all cylinders. However, it doesn't hold the pressure and it's hard to see the reading when it's going up and down. I adjusted everything by ear and it idles at 350 RPM's, but ordered a timing light, Dwell/Point/Tach tester, and a compression & vacuum tester to fine tune.
Some observations:
1. The idle screw on the carburetor that controls air doesn't seem to work.
2. When it was 15 degrees out it wouldn't start. When the temperature got up to 45 it fired right up.
3. I thought the new intake valve guides I put in installed way too easily.
I'll fine tune all the adjustments when I get the test equipment.
I'm also thinking about getting a 6V electronic ignition. I've reset the points and checked for points sticking multiple times. With my eyesight and arthritis in my hands I'm thinking it might be me.
When I get the vacuum tester I'll see how much suction there is. I'm thinking it might be the valve guide seals considering how easy they slipped in, and the idle screw not seeming to work on the carburetor. I'll also change gaskets for a third time on the manifold and and carburetor.
If I pull the valves, does anyone know how many pounds of pressure the valve springs should be?
Could there be an issue with the timing gear connected to the cam? The cam and gear looked good.
Any other thoughts of things I can try, or is this how they run?
Or better yet, am I being too much of a perfectionist?
Some observations:
1. The idle screw on the carburetor that controls air doesn't seem to work.
2. When it was 15 degrees out it wouldn't start. When the temperature got up to 45 it fired right up.
3. I thought the new intake valve guides I put in installed way too easily.
I'll fine tune all the adjustments when I get the test equipment.
I'm also thinking about getting a 6V electronic ignition. I've reset the points and checked for points sticking multiple times. With my eyesight and arthritis in my hands I'm thinking it might be me.
When I get the vacuum tester I'll see how much suction there is. I'm thinking it might be the valve guide seals considering how easy they slipped in, and the idle screw not seeming to work on the carburetor. I'll also change gaskets for a third time on the manifold and and carburetor.
If I pull the valves, does anyone know how many pounds of pressure the valve springs should be?
Could there be an issue with the timing gear connected to the cam? The cam and gear looked good.
Any other thoughts of things I can try, or is this how they run?
Or better yet, am I being too much of a perfectionist?