9N cylinder head

[Tom Tryz]

Do any of the early 9N experts have any information on the cylinder head in this picture? The only other one I have seen is on serial #16. Only bark on top is a B cast into it.

 

[Bruce (VA)]

Kirk Witte should be able to help you w/ an answer
75 Tips

 

[Kirk-NJ]

Will check a couple of my head tomorrow. You can always give Paul or Joel a shout

 

[Tim PloughNman Daley]

I don't know what you are looking at Tom and also think you meant to type mark not bark so correct if wrong. Serial number *9N-16* was owned and restored by the late, great Dwight Emstrom, who passed a few years ago and his s/n 16 is pictured in several Ford Tractor books though at the time he had some part incorrect for an early 9N; the air tube was wrong, upside down, and the shifter knob was the late 8N phenolic style for a few examples. He fixed after we talked but nobody ever retook photos so whatever. Not sure what happened to his collection - never heard of an auction so assume it's still in the family. Where did you see the B on s/n 16? In a book? I need to know more. Serial number 177 as you show - is that yours? Not on my list of early 9N's but I swear I've seen t before. Now, regarding the B on the head you refer to. FORD put part numbers into the castings on most cast iron parts and also a date code ID tag. Look at the top of head for 9N-6050 or 9N-6050-B as cast recessed. Also will be a date code ID tag as shown in my picture. Date codes needed to ID when the part was cast as it required a 30 day green period before it could be machined. Just the nature of the beast; an inherent property of cast iron. Letter for month, numeral 1-31 for day of month, single numeral for year cast. thus G-12 1 would designate cast on July 7, 1951. So, the B could be a foundry mark, shift perhaps at the Rouge, or, most likely the REVISION for the 9N-6050 head. The first head would was 9N-6050 (A) but these were never used in production. It was obsolete on 5/19/1939 so something was changed on it. The 9N-6050-B head was used until mid 1950 when FORD went to the side mount distributor and moved the Generator to the LH side which required the oil filter mounting bolts to be moved as well. The change necessitated a new p/n and thus the 8N-6050-A was born. Look in the MPC's and you'll see p/n 9N-6050-B. The first part listed in an MPC is always REV A and unless a new revision was made, is assumed to be the A part even though not listed with an A suffix. Only when a part was revised would it list with a B C D etc suffix. If there were multiple suppliers, you might see an A1 or A2 suffix. In my picture, I show a late 8N with cast recessed p/n 8N-6050-A. This was used up thru all 8N production. BTW, your serial number 9N-177 has the incorrect Sediment Bulb on it. It should be the OEM Brass Unit for an early 9N.

FORD TRACTOR CYLINDER HEAD 8N-6050-A w/ CASTING ID DATE CODE TAG:

*DATE CODE ID TAG: JULY 12, 1951


Tim Daley(MI)

 

[Tom Tryz]

What I am referring to in the picture is the rib around the lower edge of the head. There is no Ford part number cast in the top of the head the only Mark visible at all is a raised B. I am aware that I do not have the correct sediment bowl but I have not been able to find one and from people that I've talked to not sure I really want one because they all tend to leak from what I have heard.

 

[Kirk-NJ]

Check the heads on both 338 and 546 and they dont have the rib. Look More like the standard head.

 

[Mike Stegall]

from what i know these were the early heads with that ledge...no idea when it changed..but is definitly another trait of an early 39

 

[Tom Tryz]

Thanks Mike. Talked to Joel Wilbur and he said both his tractor and his dad's number 90 and 91 both have that early head.

 

[Kirk-NJ]

Head on #37. also note the toolbox

<a href=https://imgur.com/v7BvXEf>

</a>