Re: {Chrysler 300} 300F Wobbly Power Steering Pump

I think it looks that way after 60 years, the bracket functionality was good thinking with a reasonable presumption of 7 to 10 years of service, same as the rest of the car.

But it introduced a wear point, a needless one, you might call this arrogance in engineering. Chrysler committed a bit of that. If you don't know about that floating bracket you will be wrenching yourself into a lathered Fare Thee Well trying to tighten the belt.

-----Original Message-----
From: "John Grady" <jkg@xxxxxxxxxxxxxxxxx>
Sent: Wednesday, March 30, 2022 12:18pm
To: "RICK AND DEBBIE CLAPHAM" <rixpac@xxxxxxx>
Cc: "dplotkin" <dplotkin@xxxxxxxxxxxxxxxxxxx>, "John Nowosacki" <jsnowosacki@xxxxxxxxx>, "Michael James" <chrysler300f@xxxxxxxxx>, "Chrysler 300 Club International" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: Re: {Chrysler 300} 300F Wobbly Power Steering Pump

This is factually a really bad design , bad idea they dropped soon after , —original idea was pull of belt self tensions it = no adjustment needed at factory . But it constantly bounces around with tension changes in belt or change in speed of engine .

Then , the hole in steel bracket at hinge wears egg shaped at the front , this tilts the axle of pump down , you can plainly see the plane of the pulley is wrong ( put flat edge on pulley , pulley is tilted ) belt runs in at angle , can slip , but wears crazy on one side etc ( can’t have tilted pulleys on a V belt ) To attempt to stop the bouncing they put a rubber wedge in there , it get soft often gone . Whole idea is no good.

First thing I fixed on the first F I got about 1969 , essence of fix was to drill all the holes oversize in line and straight , a close fit for a long shoulder bolt acted like a controlled OD pin , then put a pipe spacer between tabs so you could clamp it solid like god wants a ps pump mounted . And what the rest of world did before and since , tighten the belt and tighten clamp . Done . No more bouncing motion there

That May have been overkill ,—- just go up to larger long bolt and the pipe spacer . Like alternator is mounted , or two oversize bolts with nuts that are a good fit . You can also add a small bolt across the gap in the two piece mount by drill and tap to act as an adjuster— to be sure it can’t loosen up —-but a tight big bolt is ok too.

I Once made a little kit for this , some original members may remember it …

Also made SS springs for generator brushes back then , the other aggravating problem on these cars ,the plain steel brush spring rusts , brush sticks in the holder . Instead of new generator and a dance with generator experts and 500$ , just tap back end of generator with dead blow hammer . Instant charge again . Or reach in abs move from back with screwdriver Then one day take off, clean brush holders and put in good springs . I had 100 stainless springs made can’t find the box , 50 years ago .. good repro project , both of these issues ..

john

Sent from my iPhone

On Mar 30, 2022, at 11:47 AM, RICK AND DEBBIE CLAPHAM <rixpac@xxxxxxx> wrote:

I believe it's a bent lower pulley.
Sent from my Verizon, Samsung Galaxy smartphone
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From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> on behalf of dplotkin <dplotkin@xxxxxxxxxxxxxxxxxxx>
Sent: Wednesday, March 30, 2022 9:19:20 AM
To: John Nowosacki <jsnowosacki@xxxxxxxxx>
Cc: Michael James <chrysler300f@xxxxxxxxx>; Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: Re: {Chrysler 300} 300F Wobbly Power Steering Pump

That is a shot bushing in the bracket pivot.

Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------

From: John Nowosacki <jsnowosacki@xxxxxxxxx>

Date: 3/30/22 11:13 AM (GMT-05:00)

To: Dan Plotkin <dplotkin@xxxxxxxxxxxxxxxxxxx>

Cc: Michael James <chrysler300f@xxxxxxxxx>, Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>

Subject: Re: {Chrysler 300} 300F Wobbly Power Steering Pump

That video looks like evidence of a different problem than the usual back and forth movement that is to be expected by the pump. It almost looks like there would be elongated holes in the bracket, or a severely worn bolt mounting the bracketry to the engine? 'Rocking' back and forth is 'normal', but the 'wobbling' in this video is not.

On Wed, Mar 30, 2022 at 10:59 AM <dplotkin@xxxxxxxxxxxxxxxxxxx> wrote:

Bob Merritt has a video on his YouTube channel explaining the correct procedure to tighten the belt on this pump bracket that self-tightens as load on it increases. It depends upon a bushing that allows its self-tightening movement. Yours is likely shot allowing pump wobble. I believe the video includes advice on replacing the bushing.

Danny Plotkin

-----Original Message-----
From: "'Michael James' via Chrysler 300 Club International" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Sent: Wednesday, March 30, 2022 10:44am
To: "Chrysler 300 Club International" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} 300F Wobbly Power Steering Pump

Morning Team,
I’m looking for help in addressing this wobbly pump issue. Thanks!

Sent from Yahoo Mail for iPhone

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