5000 coolant leak

5000 gas is leaking coolant, it is coming out between the engine and the trans, right below the starter. I checked the engine oil and it seems to be OK. Any suggestions?
 
Most likely the core plug behind the flywheel is rotten.... Now you get to split it, remove the flywheel and adapter plate, all to replace a 50 cent plug....

Rod
 
ivor from uk here and there is good chance it is core plug but I remember there was a big problem with ford tractors and that was porous blocks
 
If you've got coolant coming out there you have other problems too. Corrosion,erosion and cavitation and an eventual hole in a cylinder liner is next, All preventable. Anti-freeze and coolant conditioner is cheap insurance but nobody seems to listen. I have had so many of these blocks bored and sleeved and freeze plugs replaced that I lost count years ago.
 

I agree that it is most likely the plug, and that you will need to split it, but the 401 is the Ford motor that is so prone to cavitation perforation. Your 5000 will likely still be good weather it has the early or late motor.
 
Agree it is a soft plug. There are two in the back of the head and one in the block behind the flywheel. Replace all 3.
I've asked about this before but still don't have a definitive answer:
Has anyone here Ever heard of cavitation problems on a gasser of this era?
I'm starting to think it was a diesel problem only.
 
I have two responses to your post:

1) At the rear of the engine, there is one soft plug in the head, and two in the block, not the other way around. Of the two in the block, only one is behind the rear plate.
2) I have never seen a gasser cavitate. This may be for two reasons: A), as a percentage of total production by Ford, there are a whole lot less of them running around, and B) more likely, since the root cause of cavitation is vibration, it stands to reason that a diesel is a lot more susceptible to pinholing, since a diesel engine vibrates more than a gasser.
 
My bad Bern. I know there's 3 soft plugs. Used to have a photo that showed them but lost it when photobucket went kaput.
As for the ratio of gas v diesel production I would say in these parts there are signifjcantly more 2/3000 gassers than diesels. Like maybe 65/35 or 70/30 %. On 4000s it might be a 40/60 g/d split. 5000s are much different, more like 20/80. These are local numbers of course but enough data that we would have heard of one cavitating.
My point in asking the question was in response to Welding Man's post since we are dealing with a gas engine in this thread.
 

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