TD-14 Head Gasket

[thebunns]

I need a head gasket (p/n 50675 DC) for my International TD-14. I have a new gasket (p/n 50675 DD) for my TD-14A. What is the difference between the C (-14) & D (-14A) in part numbers? Will the gasket fit the -14?

 

[Janicholson]

Match it up hole for hole! if no original, do it on the block or head. Jim

 

[Jim Becker]

"DD" is a proper replacement for "DC". That is the way IH part numbers work.

 

[used red MN]

To elaborate more on what Jim said a part number with a
suffix with a later progression alphabetically is a revised
replacement for the original part number. Same applies
numerically. So in your case a 1234-D gasket will replace a
1234-C gasket. But if there is a later production machine
that requires a 1234-D gasket a 1234-C gasket is not
necessarily going to fit or have the refinements of the 1234-
D requirements. Same goes with a common numeric suffix
IH used like R91 and R92.

 

[thebunns]

Thank you, guys. As I am beyond (age wise) lifting tractor heads I plan on winching the head up enough to clear the studs & swapping the gaskets. One more thing, what about the fire rings? Do I necessarily need to change them, and if so do they just pop out & in?

Vic

 

[rustred]

i sure would not be just popping them in and out with out a good inspection. but yes they are a separate ring from the gasket. i think your
doing the wrong thing here. the head needs to be totally removed , flipped over inspected for cracks between the valves. and a good total
clean job. whay waste time and money for a half azz job. and might end up with the same deal. even the valves should be removed and looked
at. thats kind of like changing a diaper with out a clean up.

 

[thebunns]

(quoted from post at 18:13:46 05/31/21) i sure would not be just popping them in and out with out a good inspection. but yes they are a separate ring from the gasket. i think your
doing the wrong thing here. the head needs to be totally removed , flipped over inspected for cracks between the valves. and a good total
clean job. whay waste time and money for a half azz job. and might end up with the same deal. even the valves should be removed and looked
at. thats kind of like changing a diaper with out a clean up.

I totally agree with you but, my question was: "Do I necessarily need to change them, and if so do they just pop out & in?"

Vic

 

[Janicholson]

The engine could be a gas start diesel run, or in the last series, diesel start, either one needs to have the head serviced to assure there are no
cracks. Rust red is very correct. I have owned a TD-18A with that starting arrangement, and unless actually have that head serviced, you are risking
disappointment and wasting the effort you have invested. Jim

 

[rustred]

they are just sitting there, just lift them off. i will be reusing mine on the td18 if i ever get back to putting it together.

 

[thebunns]

(quoted from post at 09:03:34 06/01/21) they are just sitting there, just lift them off. i will be reusing mine on the td18 if i ever get back to putting it together.

Thanks! I'll have a look at them & determine if replacements are warranted. I may lay a board across the top of the motor & tip the head to have a look at it. I don't care about the valves as they were working when I shut the motor off. I'm not looking for a perfect engine stuck in a worn out chassis. I just want the thing to out last me.

Vic

 

[derwen1959]

What are the symptoms?
Are you sure it is head gasket?

 

[derwen1959]

Get help to do work

 

[rustred]

ok, here is the fire ring. no reason you cant reuse it if its not burnt on the inside edges and the sealing surface is good, i cleaned a
spot here on mine and i do plan on reusing them. and yes they are just sitting on top of the sleeve. funny nobody believes when i post
something.

 

[rustred]

working when i shut the motor off pretty well means nothing to a mechanic. a visual inspection tell's the complete story and dont have to
hear it run.

 

[thebunns]

Here's my "perfection". It is not the -14! When I get done with the crawler, if it runs fine! If not, no big deal.

Vic

This post was edited by thebunns on 06/01/2021 at 06:20 pm.

 

[thebunns]

(quoted from post at 23:59:41 05/30/21) To elaborate more on what Jim said a part number with a
suffix with a later progression alphabetically is a revised
replacement for the original part number. Same applies
numerically. So in your case a 1234-D gasket will replace a
1234-C gasket. But if there is a later production machine
that requires a 1234-D gasket a 1234-C gasket is not
necessarily going to fit or have the refinements of the 1234-
D requirements. Same goes with a common numeric suffix
IH used like R91 and R92.

Here's a pic of a 50675 DD gasket overlayed onto a 50675 DC gasket. It shows why a "D" gasket can replace a "C" gasket, but not the other way around. That's if you don't care about the shape of the holes. The two large holes on the bottom of the "D" gasket are solid on the "C" gasket.

Vic