9N vs.8N Engine

How can you tell a 9N engine or 2N engine from an 8N engine if the serial number is not readable?? What do you look for? Is the serial number stamped further back on an 8N? Are there other characteristics to an 9N, 2N or 8N engine to physically see the difference from the exterior?

I owned a 9N at one time. Had the front mounted distributor. I believe 8Ns have a side mount distributor.

Post down the page on the N page,you ll have your answer in 5 min.

There are two types of blocks , one is for a front mount distributor . The very early 9N's did not have welch plugs but these are the exceptions . The majority of 9n , 2N , and about half of the 8N used the front mount distributor blocks and they have the thin .040 steel sleeves ( unless they have been modified ) but basically they are identical .

The other block is for a side mount distributor and the generator was moved to the left side of the motor so a boss with holes for studs were cast in that side . These blocks will work with the front mount distributor set up . The later model blocks had thicker .090 cast iron sleeves and a larger geared oil pump .

So basically you have a front mount distributor or a side mount . They are 60 - 70 years old and who knows what internal parts have been installed . I have seen automotive sleeves installed ( non replaceable ) and older blocks bored for the thick sleeves . Some have been re-machined for the larger oil pump / gears , so never order internal parts until you have verified what you need .

You may get a clue from the casting code by the starter . An 8n-b or 8n-c may be a later block .

If you have a 3 speed and 6 lug rear wheels it is basically a 9n , if you have a 4 speed and 8 lug rear tires it is an 8N .

They have both, I have one of each. TY for your reply.

TY, I will check that out tomorrow.

Ok, I have one answer to try tomorrow.