Freeze Plugs

[PapsPlymouth]

I have a 47 plymouth special deluxe. does it have freeze plugs at the rear of the engine? i have found a coolant leak, it looks like it is coming out of the flywheel cover. any suggestions?

[Don Coatney]

Have you done a forum search?

[Dan Hiebert]

...in other words - yes, there are freeze plugs on the back of the block that are covered by the flywheel housing. Only remedy is to access it/them and replace them.

You can either leave the engine in the vehicle and remove the drive train all the way to the flywheel (removal and installation of new plugs would still be a bear), or remove the engine/tranny combo from the vehicle, break it down and replace them when its out. To me, it would depend on what equipment I have available. There are a lot of "while-your-at-its" that can be done with either process, but it boils down to the freeze plugs really should be replaced, the alternative is to wait until catastrophic failure, then you'll have to do it anyway.

Freeze plugs have been discussed quite a bit on the forum, if memory serves me right, a couple others have had "issues" with the freeze plugs on the back of the block, too.

[John Reddie]

If it were my car, I would remove the engine and replace all of the freeze plugs. I have done this in the past and while the engine was out, I cleaned and painted it. If one is leaking, the others are probably prone to leakage as well. Good luck to you.

John R

[scottyv47]

...in other words - yes, there are freeze plugs on the back of the block that are covered by the flywheel housing. Only remedy is to access it/them and replace them.

You can either leave the engine in the vehicle and remove the drive train all the way to the flywheel (removal and installation of new plugs would still be a bear), or remove the engine/tranny combo from the vehicle, break it down and replace them when its out. To me, it would depend on what equipment I have available. There are a lot of "while-your-at-its" that can be done with either process, but it boils down to the freeze plugs really should be replaced, the alternative is to wait until catastrophic failure, then you'll have to do it anyway.

Freeze plugs have been discussed quite a bit on the forum, if memory serves me right, a couple others have had "issues" with the freeze plugs on the back of the block, too.

yeh i have a bad freeze plug in my 51 also, i was going to post about it a few days ago, but its the same one by the starter as rodney's, and everyone answered all my questions on rodney's post already,

[BobT-47P15]

You could possibly try some "stop leak" substance placed into the water

of the radiator. But, that sometimes generates other additional problems.

[PapsPlymouth]

yeah, the car has been sitting awhile and i recently had the starter rebuilt. when it turned over, muddy water came out of the flywheel cover. i think it has been leaking a long time. also i observed the car had about half a gallon of coolant in it. looks like ill be removing the engine, might have a rebuild done