Thunderbird 1969 - missing plug

[Yutani]

Hello,

I have started working on my t-bird, and I have noticed that some kind of plug on motor from cooling system is missing. Maybe somebody have some pictures of drawigs what to look for. All cooling fluid is draining...

Best Regards
Yutani

 

[Edgars68]

where is this at? I have a 68 might be able to match it.

 

[Yutani]

Hello,

Please, look at attached photos,
Passenger side of the engine block,
Low position, just above sump (I think...)

Yut

 

[OneAmongOthers]

You sure it’s not a freeze plug? Because they can rust out and leak. It does look pretty rusty in those pictures of yours. And there isn’t any cooling lines down below on the passanger side. The heater core lines run along the top over the head, not below it. Check and see if the freeze plugs haven’t failed.

 

[OneAmongOthers]

That looks like a freeze plug is missing.

 

[Yutani]

Hello,

I thought so... I will look for such a plug on rockauto.com.
Do You know how i can mount it back?

Best Regards
Yut

 

[Yutani]

...maybe Somebody can tell mi the diameter of the plug? I do not know how to look for it...

 

[OneAmongOthers]

The 429/460 are the same block. Look for freeze plugs for them. I don't know the diameter.

 

[OneAmongOthers]

https://www.summitracing.com/parts/slp-381-8018
Here you are. $10 bucks for the entire set for your engine.

 

[Yutani]

Great - thanks

I have also found it on ebay
https://www.ebay.com/itm/New-EP125B...970840&hash=item35e783d311:g:uTYAAOSwo4pYdZUw

I will let You know when I will recive them and mount on block.
Do You think I should exchange already all of the or only install missing one?

Best Regards
Yut

 

[OneAmongOthers]

Great - thanks

I have also found it on ebay
https://www.ebay.com/itm/New-EP125B...970840&hash=item35e783d311:g:uTYAAOSwo4pYdZUw

I will let You know when I will recive them and mount on block.
Do You think I should exchange already all of the or only install missing one?

Best Regards
Yut

It’s you got the whole set then why not? Though I would go on a need to replace basis. Freeze/Expansion plug I don’t think you need to worry about them for the most part.

 

[Yutani]

Thanks for advices - I will let You know how it went

Best Regards
Yut

 

[Yutani]

So I have install new plug - diameter is 38mm,
And for 10 minutes it was promissing - after that second one have failed...
Of course now it is one under engine cushion...

Yut

 

[OneAmongOthers]

So I have install new plug - diameter is 38mm,
And for 10 minutes it was promissing - after that second one have failed...
Of course now it is one under engine cushion...

Yut

Yup... that usually happens. You might as well change them all. They are probably old and either rusted or worn out so the pressure is going to blow out each one that is weak. May as well change the motor mount as well if you have to remove them.

 

[Yutani]

That is my plan for now... Thanks