2a Backfires though carb.. timing?

[kjjk56]

Hi all!

I have been working on a new project and its a '46 CJ-2A. Everything has been working well until I tried going up hill. I have tried maxing out the throttle while stationary and this doesn't happen. When I go uphill (or maybe apply enough torque) the engine starts to backfire and lose power. Oddly enough, the choke likes to engage more and more when this is happened. I am diagnosing the problem, but would anyone think it would be a timing or exhaust problem? I am currently checking points today.


Thanks and any help is much appreciated


Keith

[LarrBeard]

Since it only misbehaves on hills, I'd guess carburetor. When things tilt, gas slops around into somewhere it shouldn't be - or leaves somewhere it should be. Wanting choke also hints at a fuel problem. Look at gaskets, float, inlet needle valve and seat ... etc.

But, since it's an old Jeep - it's probably the pressure in the left rear tire ;).

Let us know what you find.

[kjjk56]

Since it only misbehaves on hills, I'd guess carburetor. When things tilt, gas slops around into somewhere it shouldn't be - or leaves somewhere it should be. Wanting choke also hints at a fuel problem. Look at gaskets, float, inlet needle valve and seat ... etc.

But, since it's an old Jeep - it's probably the pressure in the left rear tire ;).

Let us know what you find.

Thanks I check it out and will do