Mad Farmer
Well-known Member
- Location
- Northeast
Bringing back this dead thread. My cousin's brother got sick and we lost him 2023. The NAA took a back seat to family, but we just picked up working on it this spring. Hope to have it ready for pulling the rake/tedder for haying 2024.
To recap NAA ran like crap, we R + Red distributor but still ran bad. Learned it had been overheated and head gasket blown between #2 and #3.
We have the reconditioned head and decided to also do the water pump while the tractor is apart.
The initial overheat was from a radiator leak and we decided to have the radiator shop take care of that. It is the original one and not in too bad of condition. While taking the head off the muffler fell apart so we also got a new exhaust system, and discovered the intake/exhaust manifold was also rotted so have an aftermarket manifold.
I've taken the carb apart and everything seems in order and clean, float level set. Anything else I'm missing while we have the hood off and apart to check/recondition now?
I'm a little concerned with the quality and fit of the new manifold. The runners for the int/ex are much larger diameter than the original, as is the carb inlet and ex outlet. Is this because of a 1 fits all manifold that is shared with the larger engines like the 800 series? How will this effect flow when running? They also missed machining the surface around two of the stud holes.
The quality of the casting is terrible inside, with lots of flash inside both intake and exhaust runners. There is NOTHING smooth inside the runners. I'm sort of afraid this flash may break loose and get inside the reconditioned engine. This manifold is brand new and not carbon inside the runners, it's rough cast iron.
I've got some pictures. Would you send this manifold back?
One other question. I have the IT manual, and the Ford NAA owner's manual and shop manual. Is there a place to download the parts/IPL books?
I take more pictures as things come together............
To recap NAA ran like crap, we R + Red distributor but still ran bad. Learned it had been overheated and head gasket blown between #2 and #3.
We have the reconditioned head and decided to also do the water pump while the tractor is apart.
The initial overheat was from a radiator leak and we decided to have the radiator shop take care of that. It is the original one and not in too bad of condition. While taking the head off the muffler fell apart so we also got a new exhaust system, and discovered the intake/exhaust manifold was also rotted so have an aftermarket manifold.
I've taken the carb apart and everything seems in order and clean, float level set. Anything else I'm missing while we have the hood off and apart to check/recondition now?
I'm a little concerned with the quality and fit of the new manifold. The runners for the int/ex are much larger diameter than the original, as is the carb inlet and ex outlet. Is this because of a 1 fits all manifold that is shared with the larger engines like the 800 series? How will this effect flow when running? They also missed machining the surface around two of the stud holes.
The quality of the casting is terrible inside, with lots of flash inside both intake and exhaust runners. There is NOTHING smooth inside the runners. I'm sort of afraid this flash may break loose and get inside the reconditioned engine. This manifold is brand new and not carbon inside the runners, it's rough cast iron.
I've got some pictures. Would you send this manifold back?
One other question. I have the IT manual, and the Ford NAA owner's manual and shop manual. Is there a place to download the parts/IPL books?
I take more pictures as things come together............