RE: [Chrysler300] 300G

["David Schwandt" <finsruskw@xxxxxxxxxxxxxxx>]

You can also modify a pair of SWB mounts to fit a LWB car by swapping the
ears around

That's how I made mounts for the F when it went together.

 

You just have to be really  careful w/the welding so close to the rubber is
all.

 

Dave Schwandt

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of Bob Jasinski
Sent: Thursday, February 13, 2014 1:26 PM
To: 'Michael Moore'
Cc: '300'
Subject: RE: [Chrysler300] 300G

 






Mike et al,

 

I am familiar with the concerns about substituting polyurethane front end
components in place of OEM rubber originals and have heard and read of
others finding the ride objectionable after rebuilding a front end using
aftermarket polyurethane parts.  In fact, that is the reason I went with
original OEM front end components in the A body Barracuda project I have in
my garage.  

 

Having written that, I am at a loss to see how that would translate to the
same concerns regarding engine mounts.  As an example, about 10 years ago,
John Hertog wrote a piece for our 300 website tech section, (I think it is
still there) about repairing a failed engine mount, by making a "Franken
mount", that is, drilling through the broken rubber mount and securing it
with a bolt, through the steel into the failed rubber, and back out again
thereby allowing the original mount to be placed back into service.  

 

I emailed him with questions about the fix, and asked whether there was any
noticeable vibration from the engine transferred to the frame using the
Franken mount, and he replied back that he could not notice any difference.
Based on this feedback, my thinking was that since he did not notice any
difference with his solid, bolted mount, that a poly mount substituted for a
rubber OEM mount would have little to no affect.

 

Anyone on the list have the poly mounts from Imperial Services installed on
their car?  Did you notice any difference?  Another question, if poly is a
concern, does anyone know of a service that revulcanates OEM mounts with
rubber?  As a consultant for the Inc. Club I get calls from individuals
dealing with failed motor mounts, and have been referring them to Imp
Services.  Recently, a high school friend of my daughter asked me for help
finding mounts for the '63 Imperial he inherited from his grandparents, and
I sold him my spare mount set to help him out as the repops are pricey.

 

Bob J

 

 

From: Michael Moore [mailto:mmoore8425@xxxxxxx] 
Sent: Wednesday, February 12, 2014 6:04 PM
To: Bob Jasinski
Cc: 300
Subject: Re: [Chrysler300] 300G

 

Bob,

I have restored several British sports cars. Polyurethane bushings in all
sorts of colors are sold by major parts suppliers, and people love them
because "they're stiff" and " they're tough". There is nothing wrong with
them.  I just prefer not to use them for a subtle reason.

 

1. Several years ago, Sports and  Classic Car Magazine (I think) had a cover
story abut a comparison between two MGA's, both of which were on the cover.
The cars were identical even to the light blue color. One car was totally
original and very low mileage, around 30,000 miles as I recall. The other
car was freshly  restored using modern materials and parts but still
authentic. Two writers left in the two cars for a weekend.They drove a day
to the other part of the country, overnighted, then swapped cars the next
day for the trip back home. They then compared the cars and wrote about it.
They were unanimous that the original car was superior in every way,
especially handing and ride. The fresh restoration was very stiff and harsh
riding, and not as comfortable for a long trip. It was attributed to several
things but one major one was polyurethane bushings and body isolators
throughout.

 

I also had a friend who worked at a British sports car factory  and he once
mentioned how much trouble the engineering department went to  determine
exactly what hardness rubber to use in various bushings, They would take it
to the test track, record data, then spend time removing softer bushings to
install higher hardness bushings or vice versa. A lot of engineering time
was spent to get everything  as it should be. 

 

Likewise, I personally designed some very large industrial isolators many
years ago. I started with something like 85 Shore B hardness, tested, and
went to 80 and tested. I eventually selected the exact hardness needed for
my application. I have never seen any hardness specification on any
isolators and would not expect anyone to ask or answer-like I said, its
subtle!   

 

Finally, I restored a 63 E Type a number of years ago. It used OEM or NOS
parts wherever possible and no polyurethane in any of the bushings or
isolators. It drove like a dream.  Then, my son asked me to restore one for
him, which I did-but he wanted all the boy racer stuff. Competition shocks,
nice red poly bushings , etc.  So for a year, I could drive either car as I
finished up his car. 

I would not have realized how horrible his car was had I not been able to
drive my car also. It was a different car-but it was very stiff, and he
loves it!

 

That's my opinion, and there is nothing wrong with poly bushings. They are
tough.

 

Best, Mike Moore

 

 

          

On Feb 12, 2014, at 5:07 PM, Bob Jasinski <rpjasin@xxxxxxxxxxx> wrote:

 

Michael,

 

That's bad news.  I just let a spare pair of originals go because I thought
I could always get new ones.  I wonder how wide spread the problem is,
polyurethane is very popular for front end parts.  Any others on the list
having a bad experience with the repro's?  What does Imperial Services have
to say?  Warranty?

 

Bob J

 

From: Michael Moore [mailto:mmoore8425@xxxxxxx] 
Sent: Wednesday, February 12, 2014 4:25 PM
To: Bob Jasinski
Cc: 300
Subject: Re: [Chrysler300] 300G

 

Bob,

Thanks I prefer not to use polyurethane, I have a used floating power poly
mount now which is separating, I'd like to find an NOS rubber mount, or a
good used one if possible.

Thanks, MIke Moore 

 

 

On Feb 12, 2014, at 4:21 PM, Bob Jasinski <rpjasin@xxxxxxxxxxx> wrote:

 

Michael,

 

Have you tried this vendor?

 

http://imperialservices.net/imps.html

 

Bob J

 

 

 

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of Michael Moore
Sent: Wednesday, February 12, 2014 4:16 PM
To: Tom Cox
Cc: Gern Blanstin; 300
Subject: Re: [Chrysler300] 300G

 

  

Hi Tom,

Jeff responded to my email today and has been terrific help. 

I need a NOS 220237 left side engine mount though and he doesn't have them.

Mike Moore

On Feb 12, 2014, at 4:59 AM, Tom Cox <tdcox@xxxxxxxxxxxxx> wrote:

 

  

 

Jeff Carter has more parts than you can imagine. Contact him at JC Auto
Restoration in Seattle. Google for website and phone number. Great guy; good
to work with. He restores our letter cars to perfection but has warehouses
full of parts.

 

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of Gern Blanstin
Sent: Wednesday, February 12, 2014 4:06 AM
To: chrysler300@xxxxxxxxxxxxxxx
Subject: [Chrysler300] 300G

 

  

Hello there,

 

I'm new to the group and the 300 club.  I have two 300k's as well as a 300G
that I'm trying to bring up to par.  Currently I'm trying to hunt down a
pair of inner fender inspection plates for the 300G.  Any info on their
potential acquisition would be appreciated.  

 

Thanks

 

 

 

 

 

 










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