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Oil Pump for the Olds in a Packard engine [message #294264]

Sat, 23 January 2016 20:17

Larry

Messages: 2875
Registered: January 2004
Location: Menomonie, WI

Karma: 10

Senior Member

I have a 56 Studebaker Golden Hawk that needs a new oil pump. A special plate has been developed to adapt the Olds high volume pump to the Packard engine. What better group to ask than you. What brand of High Volume pump has the group found to be the best replacement oil pump for your 455/403 engines?

Thanks in advance. Razz

Larry

78 Royale w/500 Caddy
Menomonie, WI.

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Re: [GMCnet] Oil Pump for the Olds in a Packard engine [message #294272 is a reply to message #294264]

Sat, 23 January 2016 20:56

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma: 9

Senior Member

IS there anyone besides Melling?

Certainly the only one I've ever used & never had a problem with one.

Ken H.

On Sat, Jan 23, 2016 at 9:17 PM, Larry wrote:

> I have a 56 Studebaker Golden Hawk that needs a new oil pump. A special
> plate has been developed to adapt the Olds high volume pump to the Packard
> engine. What better group to ask than you. What brand of High Volume
> pump has the group found to be the best replacement oil pump for your
> 455/403
> engines?
>
> Thanks in advance. :p
>
> --
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

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Re: [GMCnet] Oil Pump for the Olds in a Packard engine [message #294278 is a reply to message #294272]

Sat, 23 January 2016 23:32

Harry

Messages: 1888
Registered: October 2007
Location: Victoria, BC CANADA

Karma: 3

Senior Member

Doesn't the Hawk have a Studebaker 259 or 289 engine?

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Re: [GMCnet] Oil Pump for the Olds in a Packard engine [message #294280 is a reply to message #294278]

Sun, 24 January 2016 00:21

Bill Freeman

Messages: 122
Registered: March 2004
Location: Colerain, NC

Karma: 1

Senior Member

The 56 Golden Hawk had a 352 Packard engine. 57 and later Hawks had the 289 Studebaker engine. The Packard had a reputation for a weak bottom end so a high volume oil pump might be a good idea.

Bill Freeman
78 Royale 73 Sequoia
Colerain, North Carolina

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Re: Oil Pump for the Olds in a Packard engine [message #294293 is a reply to message #294264]

Sun, 24 January 2016 09:14

Larry

Messages: 2875
Registered: January 2004
Location: Menomonie, WI

Karma: 10

Senior Member

1955 was the year that Studebaker and Packard merged, so the 56' GH has the 352 Packard engine in it. I've been around this car for over 50 yrs and had not heard that the bottom end was notoriously weak. It did have a notoriously bad oil pump and the 352 was notoriously very heavy which had a rather negative effect on the handling of the car because of all of that weight on the front end. So in 1957, Studebaker went from the 275hp 352 stone to a lighter supercharged 275hp 289cid. Same HP and torque, but much lighter front end with the bragging rights of being supercharged. A little over 4K of the 56GH were produced and only around 600 remain. Gonna pass this one on to one of the grand kids.

Thanks Ken. Ordered a Oil pump kit and Melling pump last night. After 15 yrs of sitting in my tuck-under garage (heated and AC'd) I hope to be driving it again this summer...that is IF the GMC doesn't take up to much of my time.

Larry

78 Royale w/500 Caddy
Menomonie, WI.

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Re: Oil Pump for the Olds in a Packard engine [message #294357 is a reply to message #294293]

Mon, 25 January 2016 08:28

Bill Freeman

Messages: 122
Registered: March 2004
Location: Colerain, NC

Karma: 1

Senior Member

Seems like a notoriously bad oil pump might produce a reputation for a weak bottom end. I have definitely seen some 352 Packards that had a rod knock. I am a fan of Studebakers and owned quite a few with the Studebaker V8 engine. I raced a 54 and a 57 on a 1/4 mile dirt oval back in the early 60s. From racing them on dirt I can also attest that Studebakers have rear axles that are prone to twist off at the keyway for the brake drums.

Bill Freeman
78 Royale 73 Sequoia
Colerain, North Carolina

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Re: Oil Pump for the Olds in a Packard engine [message #294361 is a reply to message #294357]

Mon, 25 January 2016 08:58

Larry

Messages: 2875
Registered: January 2004
Location: Menomonie, WI

Karma: 10

Senior Member

Bill Freeman wrote on Mon, 25 January 2016 08:28

Seems like a notoriously bad oil pump might produce a reputation for a weak bottom end. I have definitely seen some 352 Packards that had a rod knock. I am a fan of Studebakers and owned quite a few with the Studebaker V8 engine. I raced a 54 and a 57 on a 1/4 mile dirt oval back in the early 60s. From racing them on dirt I can also attest that Studebakers have rear axles that are prone to twist off at the keyway for the brake drums.

The issue with the pump was poor design in that the bottom plate of the pump would warp under the stress of higher RPM's and draw air into the oil. This then had a direct effect on the hydraulic valve lifters making them clatter. The fix was...get this....a 1" thick bottom plate on the pump to reduce flexing, or...in more recent years using an adapter plate to adapt the Olds HV pump. Some owners tried adding oil making it 1-2 qts over full so that the pump would suck oil rather than air, but then ran into crank interference with the oil and a lot of excess crankcase pressure. JFWIW

I ask this group because of the Oldsmobile connection. Want to be sure I get the best oil pump available.

Larry

78 Royale w/500 Caddy
Menomonie, WI.

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