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5 or 9 Main Bearings?
#1
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Boro
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I did a search and just couldn't track it down. Fairly new Packard owner here. Without dropping the pan, how do I know whether my Thunderbolt engine has 5 or 9 Main bearings?

I have a 1952 Packard 300 Touring Sedan (4dr)

The exploded engine view on this site shows 9.

Posted on: 2009/9/4 0:18
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Re: 5 or 9 Main Bearings?
#2
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Owen_Dyneto
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In 1952 only the Patrician (400) had the 9-main bearing engine.

Posted on: 2009/9/4 0:56
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Re: 5 or 9 Main Bearings?
#3
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Ozstatman
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Check your engine serial number from Packard Literature and Manuals, see link below, to identify whether yours is a 5 or 9 main bearing.

packardinfo.com/xoops/html/downloads/PackardEngineSerials.pdf

Posted on: 2009/9/4 0:57
Mal
/o[]o\
====

Bowral, Southern Highlands of NSW, Australia
"Out of chaos comes order" - Nietzsche.

1938 Eight Touring Sedan - SOLD

1941 One-Twenty Club Coupe - SOLD

1948 Super Eight Limo, chassis RHD - SOLD

1950 Eight Touring Sedan - SOLD

What's this?
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Here's how!
Any questions - PM or email me at ozstatman@gmail.com
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Re: 5 or 9 Main Bearings?
#4
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Peter Packard
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G'day all, I would suggest that you look at your crankcase under the exhaust, near the sump interface. You will find where the holes for the main bearing lubrication are sealed. You will find 5 grubscrews along the crankcase for a five main and nine grubscrews for a nine main bearing.
Hope you find nine grubscrews. Peter Toet

Posted on: 2009/9/4 1:05
I like people, Packards and old motorbikes
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Re: 5 or 9 Main Bearings?
#5
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Eric Boyle
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Quote:
You will find 5 grubscrews along the crankcase for a five main and nine grubscrews for a nine main bearing.
Hope you find nine grubscrews.


You will only find 8, the 9th one is hidden behind the oil pump.

Posted on: 2009/9/4 10:19
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Re: 5 or 9 Main Bearings?
#6
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JWL
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The engine number for your 1952 300 should be in the range of K400000 series. The 400 engine number are in the K6000000 series. I hope you find a K6xxxxx number.

Posted on: 2009/9/4 11:35
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And make happen
What occupies our mind... (W. Scherer)
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Re: 5 or 9 Main Bearings?
#7
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Peter Packard
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G'day all, Thanks Eric, I forgot about the oil pump position leaving only eight screws visible. Best regards, Peter Toet

Posted on: 2009/9/4 19:17
I like people, Packards and old motorbikes
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Re: 5 or 9 Main Bearings?
#8
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Eric Boyle
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No problem Peter, it's only because of Randy Berger that I know it!

Posted on: 2009/9/5 1:37
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