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413 coolant leak
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Ev's62Chrysler
Posted 2019-08-10 7:47 PM (#585844)
Subject: 413 coolant leak



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Location: Suwanee, GA
Hi all,

My 62 413 has a coolant leak on right side towards rear of engine. It's not the block core plugs or hoses. I replaced those previously and was able to see them. Wasn't dressed to crawl under the car at the time, but did some research and think it's the rear core plug in the head. It's dripping onto the torsion bar. Assuming so, any words of wisdom before diving in? Am I likely to experience stubborn manifold bolts that might want to break? My car is 150 miles away at my parent's is why I'm asking. Trying to get this done tomorrow.

Robert
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Shep
Posted 2019-08-13 3:51 PM (#585969 - in reply to #585844)
Subject: Re: 413 coolant leak



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So you are pulling the head? If so you may be able to leave the manifold in place
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Ev's62Chrysler
Posted 2019-08-13 10:47 PM (#585994 - in reply to #585844)
Subject: Re: 413 coolant leak



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Location: Suwanee, GA
No. I was referring to removal of the exhaust manifold from the head to access the plug. I wasn't able to make it make it to my parent's Sunday, but will try again this weekend.
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Shep
Posted 2019-08-14 8:58 AM (#586000 - in reply to #585994)
Subject: Re: 413 coolant leak



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Location: Chestertown, NY ( near Lake George)
No way to predict issues getting the bolts out, if it was ever apart prior, might go smoothly.
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Richbo
Posted 2019-08-18 3:52 PM (#586197 - in reply to #585844)
Subject: Re: 413 coolant leak


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I had good luck using those rubber expanding plugs. And I was able to do some in the heads with the exh man on.
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Ev's62Chrysler
Posted 2019-08-18 10:52 PM (#586215 - in reply to #585844)
Subject: Re: 413 coolant leak



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Posts: 153
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Location: Suwanee, GA
I was able to work on it today. The six nuts attaching the manifold to the head loosened nicely. It's the two locknuts holding the exhaust pipe flange to the manifold that are causing me grief. Can't budget either one. Anyone know if those two bolts are removable, or are they pressed into the manifold? I might have to cut them off.

It's definitely the rear of the two side core plugs that is leaking. It's hidden by the downturn of the manifold, so manifold must be removed.
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Ev's62Chrysler
Posted 2019-09-21 1:31 PM (#587806 - in reply to #585844)
Subject: Re: 413 coolant leak



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Posts: 153
1002525
Location: Suwanee, GA
Back to this project. Anyone know if 1-3/8" is indeed the correct size core plug for the head? Anyone know where to acquire a couple? Oddly no local parts suppliers have them.
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56D500boy
Posted 2019-09-21 3:43 PM (#587809 - in reply to #587806)
Subject: Re: 413 coolant leak



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Ev's62Chrysler - 2019-09-21 10:31 AM

Back to this project. Anyone know if 1-3/8" is indeed the correct size core plug for the head? Anyone know where to acquire a couple? Oddly no local parts suppliers have them.


You might be calling them the wrong name. Napa or Dorman have a number of different sized "expansion plugs"

https://www.napacanada.com/en/search/engine-parts/expansion-plugs

https://www.ebay.ca/i/223298419828?chn=ps&norover=1&mkevt=1&mkrid=70...







Edited by 56D500boy 2019-09-21 3:44 PM
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