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Water manifold tube in 356 engine
#1
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Josef Lichtenberg
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after rebuilding the engine in detail. i am still not 100% content with the watertemperature. every water channel was cleaned with with a lot of care. the radiator is rebuild and one of the heaters is complete new. the engine is running without thermostat. i read somewhere that the water manifold, tube made of sheet metal, that is in the block, must look a little bit forward over the surface of the engine. in direction of the pump. this is important for the efficiency of the waterpump. but i can't remember where it is described in detail. does anyone know how far the pipe must be over the engine surface? i guess somethink like 0.12 inches? what do you think , best regards Josef

Posted on: 2020/7/13 14:59
Packard Super Clipper 1947
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Re: Water manifold tube in 356 engine
#2
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Wesley Boyer
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If you're talking about the Water Distribution Tube, I believe it is brass and without it your cooling won't be working correctly. Also check to see if the flap in the exhaust manifold is free, if it is stuck closed it will hold the heat in also.
Found a photo of the brass tube installed and I'm also post the link where I found it.
http://packardinfo.com/xoops/html/mod ... id=216418#forumpost216418
Wes

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Posted on: 2020/7/13 16:29
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Re: Water manifold tube in 356 engine
#3
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Ross
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Push the tube in as far as it goes--the little tabs of brass on the side keep it from going in too far. It can not stick out into water pump.

Perhaps you are thinking of the gap between the rotor in the pump and pump housing. That must be small, perhaps 0,8mm so that the pump is efficient.

Posted on: 2020/7/14 5:53
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Re: Water manifold tube in 356 engine
#4
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Ken_P
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Also, you should have better luck with the thermostat installed.

Posted on: 2020/7/14 7:25
1937 120 1092 - Original survivor for driving and continued preservation.
http://packardinfo.com/xoops/html/mod ... p?topic_id=16514&forum=10

1937 115 1082 - Total basket case, partial restoration, sold Hershey 2015
https://packardinfo.com/xoops/html/mod ... &order=ASC&status=&mode=0
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Re: Water manifold tube in 356 engine
#5
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jfrom@kanter
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Here is a thread that may have some ideas on what direction to go:

http://packardinfo.com/xoops/html/mod ... id=160961#forumpost160961



Thanks
James From
Kanter Auto Products

Posted on: 2020/7/14 9:17
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Re: Water manifold tube in 356 engine
#6
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Josef Lichtenberg
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thank you for all your thoughts and helpful links. i have disassemble the waterpump and found maybe the reason. with the last assembling of the pump i have used maybe to much sealing silicon. you can see i have closed one hole in the watercircuit between pump and engine. i will take care with the new pump and use less silicon on the seal. in any case if this hole free, i will have more circulation. thank you, best regards Josef

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jpg  (268.43 KB)
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Posted on: 2020/7/14 13:34
Packard Super Clipper 1947
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