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I used to rebuilt these brackets, no longer. I was recently
contacted to rebuild one and sent the message below. This is simpler method that
anyone that can use a drill can rebuild.
Drill out 3/8" bolt holes
to 7/16, preferably in drill press to avoid
over drilling. Take a
grade 5 x 7/16 bolt with a shank that is long enough
to extend past the
bracket, you do not want threads in the bore. Cut new
threads till shank is
flush with outside of bracket, then cut bolt to
length, use lock nut to
assemble. Lube all metal contact preferably with
silicone
grease.
This method will outlast
original as the 7/16" bolt has a larger bearing
surface. I used to over
bore and braze in bronze bushings.
Take
Care,
Gary
Sent: Wednesday, March 30, 2022 12:28 PM
To: John Grady
Subject: 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.
Bob's bracket video should be better known.
Danny Plotkin -----Original
Message----- 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:
-- For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang --- You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/1648668502.663937211%40apps.rackspace.com. For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang --- You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/A553742460C04576A4CFF7652C11EF19%40OwnerPC. |
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