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Freeze plugs

Posted By Robert81155 6 Months Ago
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Robert81155
Posted 6 Months Ago
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56 Ford Pu with 292 out of 61 PU, changing heads need to know about location and number of freeze plugs needed between the heads and intake. Also, the location of heat sensor.
charliemccraney
Posted 6 Months Ago
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None in the intake.  Which heads?


Lawrenceville, GA
Robert81155
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Heads we stamped CITE
charliemccraney
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1 core plug at the rear of the intake flange for the passenger's side head.  The temperature sender goes in the same location on the driver's side head.


Lawrenceville, GA
Robert81155
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Great, thanks. I inherited this truck with the passing of my father-in-law and I know this is probably an elementary question but for I guy who has never done more than oil changes I need all the help I can get. This is the first of several problems I have to work through, but I am determined to get it running again. Thanks again
miker
Posted 6 Months Ago
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Give us a little more background. How long since the truck has run, or is it running. Your general location. Why the head change, etc. there’s lots of really good help here and knowing a little more will let more points be made on what to look for.

Welcome to the site.

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ
Robert81155
Posted 6 Months Ago
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My father-in-law drove the truck daily till about 6 yrs ago and owned probably 15 years and the way I remember is it always had a overheating problem. When he passed about 5 yrs ago it just sit. Both heads turned out cracked, so I found some on Ebay and then had them resurfaced. The ones I bought on Ebay had no core plugs in them, but the guy who did the work told they would need them and a heat sensor. I am concerned about all the coolant and oil that I drained out, not for sure what I need to do. I am in Ranger, Texas which is the middle of nowhere. What's you opinion about buying parts on Ebay, is there better sources. Thanks again
miker
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Great source of info and casting numbers

http://www.ford-y-block.com Bottom of the page

Great source of test, articles, etc.

http://www.eatonbalancing.com

Got any idea why the heads cracked?

You can often do better here in the classifieds than on eBay. You might also pick up a copy of “Ford Y-Block Engines” by C Morris. Amazon has them. Y blocks have some quirks, “don’t put the long bolt in this hole” or how you install the timing chain. Ted Eaton’s articles cover a lot of that.





miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ
Robert81155
Posted 6 Months Ago
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Not for sure what caused the heads to crack. I know that a guy in town here told me that he had repaired one of the heads. Not for sure how that is done and if that led to other problems. Thanks for the resources and will check or post in the classifieds when looking for parts from now on.
Ted
Posted 6 Months Ago
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Robert81155 (1/5/2019)
56 Ford Pu with 292 out of 61 PU, changing heads need to know about location and number of freeze plugs needed between the heads and intake. Also, the location of heat sensor.

The size for the expansion plug for the right side head located at the rear of the intake manifold and under the distributor cap is 59/64”.  The factory location for the coolant temperature sending unit was on the opposite side head in the corresponding hole.  Starting in 1957, the bung for that hole had a ¼” NPT thread.  Before 1957, that threaded hole was a 3/8" NPT.  It’s totally acceptable to move the water sending unit to the front of the manifold which typically gives a slightly warmer reading on the gauge.
 
The number one cause for cracked heads is overheating.  Low coolant levels are a major contributor to this but thermostats, reduced coolant flow, blocked passages, leaking head gaskets, ignition timing, and water leaks in general are all factors to be considered.  If the engine has set for a long period of time, then coagulated and/or hardened coolant within the block and cylinder heads becomes a real problem.


Lorena, Texas (South of Waco)


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