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1958 Belvedere Power Steering Problem
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furvedere
Posted 2018-08-08 7:49 AM (#568057)
Subject: 1958 Belvedere Power Steering Problem



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Location: Rochester, NY
I have a 1958 Belvedere that has a 1964 318 in it. I have reason to believe it's 1733496 Thompson Power Steering Pump is off the original 318 that came in the car. I have power steering at cruising speed but at idle there's no assist at all. Has anyone seen a pump slowly fail like this? Anyways, I can't seem to find a replacement anywhere and before I remove it and send it off to a rebuilder, I thought I'd check here to see if anyone has any suggestions or if anyone may have a known good replacement pump.

Thanks, Bob

PS...I hesitate sending it off to a rebuilder because I know I could hear back that it's not rebuildable.

Edited by furvedere 2018-08-08 10:08 PM
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Shep
Posted 2018-08-08 9:41 AM (#568061 - in reply to #568057)
Subject: Re: 1958 Belvedere Power Steering Problem



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Location: Chestertown, NY ( near Lake George)
Has this been a slow deteroration? If so sounds like it could be a pump issue, without a pressure test, hard to be sure.
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furvedere
Posted 2018-08-08 10:09 PM (#568100 - in reply to #568057)
Subject: Re: 1958 Belvedere Power Steering Problem



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Location: Rochester, NY
I bought the car in early 2015. It had the problem when I got it. 3+ years later it seems like it's getting worse.
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Shep
Posted 2018-08-09 7:54 AM (#568118 - in reply to #568100)
Subject: Re: 1958 Belvedere Power Steering Problem



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Location: Chestertown, NY ( near Lake George)
To be sure a pressure test should be done, or you could try flushing the system, the symptoms do point to a pump issue.
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ttotired
Posted 2018-08-09 5:39 PM (#568147 - in reply to #568057)
Subject: Re: 1958 Belvedere Power Steering Problem



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Location: Perth Australia
I would be surprised if a ps pump was hard to find in the US, I have at least 1 here in Aus for the 60 (I know its different)

Theres one on ebay now for your car, but pretty sure someone on here would have one kicking around

https://www.ebay.com/itm/1957-1958-Chrysler-Plymouth-USED-Thompson-p...

It does sound like a pump or slipping belt (you don't always here them) or its leaking internally in the box, but I doubt that

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furvedere
Posted 2018-08-09 9:40 PM (#568164 - in reply to #568147)
Subject: Re: 1958 Belvedere Power Steering Problem



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Posts: 250
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Location: Rochester, NY
ttotired - 2018-08-09 5:39 PM

I would be surprised if a ps pump was hard to find in the US, I have at least 1 here in Aus for the 60 (I know its different)

Theres one on ebay now for your car, but pretty sure someone on here would have one kicking around

https://www.ebay.com/itm/1957-1958-Chrysler-Plymouth-USED-Thompson-p...

It does sound like a pump or slipping belt (you don't always here them) or its leaking internally in the box, but I doubt that



I saw that pump on ebay...but its obviously a gamble to buy it. Not tested, could be junk/not rebuildable. I always thought you could hear a slipping belt. I know it's tight, but I'll check it. Thank you
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rebel
Posted 2018-08-10 12:19 PM (#568194 - in reply to #568164)
Subject: Re: 1958 Belvedere Power Steering Problem


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Location: Western Colorado
I know Don Petty (wildone770) in Arizona has at least one of these pumps. Call him at 602-689-9414
Bob
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furvedere
Posted 2018-08-11 9:07 PM (#568264 - in reply to #568057)
Subject: Re: 1958 Belvedere Power Steering Problem



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Location: Rochester, NY
Thank you...I'll give him a call.

Bob
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furvedere
Posted 2018-08-30 9:45 AM (#569252 - in reply to #568057)
Subject: Re: 1958 Belvedere Power Steering Problem



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Posts: 250
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Location: Rochester, NY
No reply from Don Petty...perhaps I've come to a dead end with this 1733496 Thompson pump, unless I want to take a chance and see if someone can rebuild it. Here's my second option. Find another pump that will fit on this 1964 poly 318 motor....which will include getting the correct bracket, pulley to mount it/get the belt to line up. And also to to have enough room to adjust belt tension/avoid interference with the hoses. Can anyone help/advise me what other pumps will work? Thank you, Bob
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Fin_ish Floyd
Posted 2018-12-17 9:49 PM (#575407 - in reply to #568057)
Subject: RE: 1958 Belvedere Power Steering Problem


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Posts: 9

Location: Santa Fe Texas
I have a business ( YouTurn power steering conversions) that will go on Ebay starting in Jan 2019 that builds Power steering kits for 1957-1960 Plymouth and Dodges only at this time. Your 64 Mopar 318 should be the same as the earlier poly's. I have a bracket and pump kit that should work on your engine. These are guaranteed pumps and I have a complete kit w/ bracket ,pump/hoses,gear and column kit on my personal 1957 Savoy that works great. If you could send me photo's of your pump bracket attachment points I should be able to tell if it will fit. I decided to build this business because there are no others that cater to the earlier mopars steering problems. Send photos of your 64- 318 front water pump housing view and your current pump and bracket. to--floydyouturn@hotmail.com.

fin_ishfloyd
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Stroller
Posted 2019-01-13 11:03 AM (#576701 - in reply to #568057)
Subject: Re: 1958 Belvedere Power Steering Problem


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I know this is a very old thread. However I have rebuilt P/S pumps a few times. Here's link for a kit:
https://www.partsgeek.com/b6xfhr8-plymouth-belvedere-power-steering-...
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mikes2nd
Posted 2019-01-13 12:27 PM (#576709 - in reply to #576701)
Subject: Re: 1958 Belvedere Power Steering Problem


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thats a saginaw power steering pump kit.

There is no "rebuilding" of a thompson except the seal you can get get from any well equipped seal provider. SKF 6729 {#1733024, 311178}

They are not rebuildable if they fail or get chewed up.  They look like a 6 shooter inside, and you can normally find them fairly cheap on ebay.

I took mine apart and cleaned it, put a new seal on it.  Check tolerances... replace if needed. 



Edited by mikes2nd 2019-01-13 12:29 PM
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