[Mtbiker007]

Hi I am a fairly new diesel owner. I have a 1985 Ford 250 6.9 idi diesel. Today I went out to put coolant in the radiator. I started pouring coolant and water into the radiator. The water started pouring out from the back of the motor between the motor and transmission. Does anyone know if there is a freeze plug there that might of popped out. If someone could help me figure this out I would much appreciate it

 

[LMJD]

If I remember right, there's a couple small ones there.

 

[Mtbiker007]

Thank you

 

[LMJD]

Sorry, "if I remember right" isn't a very positive answer. I just looked in the shop manual and there is at least one freeze plug at the rear covered by the bellhousing.

 

[Trucker87]

Probably rusted out. Ya gotta pull the transmission to get at it. DO NOT use a CUP plug to replace it, use only the Convex DISC type. parts stores sell them in a bag of seven or single. Get the SS ones if available.

Use a sealer when installing, drive in with a appropriate size socket, then tap the center of it to seat it, use a ball peen hammer against it, then a light tap on the ball peen with another hammer.

There is a special driver, but very expensive.

 

[Steve83]

This diagram shows how Ford recommends installing bore plugs, and the caption contains the instructions:

 

[LMJD]

Mtbiker007, unless they're different design than the ones in the sides of the block, the pictures above and installation is totally wrong. They will be convex type plugs as Trucker87 stated and they will seat against a shoulder in the block bore. The method Trucker87 describes above is the normal installation method. The plug will fit in easily, but when you dimple it with the ballpeen it expands and fits tight. After removing the old plug, you want to take a screwdriver and scrape away any scale around the bore and seating shoulder. We've always used the Permatex Aviation sealer (brown stuff) which works well.

 

[79jasper]

Got a buddy with a machine shop?

Sent from my SAMSUNG-SM-G935A using Tapatalk

 

[LMJD]

That might be tough to use since the bell housing soft plugs are about 1/2 that size.