Re: [Chrysler300] FW: Plastic Cam Gears

[Bruce Paul <b_paul_ncp@xxxx>]

The plastic gear made it to 206K miles on a 1974 New
Yorker Brougham that I had. There was no engine damage
when it gave up---the engine just stopped. 

Is this also an issue for the 440TNT package engines
that came out starting in 1966?

Bruce Paul-Cherry Hill, NJ 

--- john_nowosacki@xxxx wrote:
> Hi folks,
> I've been following a rather lengthy thread on
> another listserver for Jensen Interceptor owners
> concerning plastic cam gears. I understand this is
> not an issue for my 61 413 motor, but my Jensen 440
> might be affected. I'd like to (re)-aquire a Hurst
> someday, and am wondering what the 300 community has
> to say regarding these plastic gears.
> My Jensen only has 25,000 miles on it and runs like
> a top, and has never had more than oil changes and
> tune-ups done to it. I'd rather not rip it apart if
> it's not necessary. Any thoughts would be
> appreciated.
> John
> 
> -----Original Message-----
> From: hal kendall [mailto:hkendall@xxxx] 
> Sent: Wednesday, June 26, 2002 11:28 PM
> To: jensen-cars@xxxx
> Subject: RE: Plastic Cam Gears
> 
> 
> Following this thread - the article, below, authored
> by Mike Lotwis, was
> printed and reprinted in the WL collection.
> 
> Plastic Cam Gears
> This article should have been written a long time
> ago, but with Interceptors
> at least five years old now, and most having at
> least 50,000 miles or more,
> it's more important than ever. All Interceptor 383
> and 440 Chrysler engines
> have plastic lined camshaft timing gears. Due to not
> only heat and mileage,
> but also age regardless of mileage, these plastic
> teeth chip away and one
> day the engine just doesn't start or stops while
> running, bending a few push
> rods and valves. When enough plastic teeth have
> chipped away, the timing
> chain just spins on the stripped gear, not allowing
> the camshaft to turn,
> thus gross mis-timing.
> 
> As a couple of you club members have attested to me
> (one just one week
> before it happened), every club member should
> immediately consider letting
> your mechanic change the timing chain and plastic
> cam gear to an all metal
> gear. Not only will this save some pride or towing
> bill someday, but more
> important, a possible complete expensive engine
> rebuild.
> 
> An aftermarket TRW all metal cam timing gear is
> available under Part
> #SS366T, the T indicating all iron metal gear. A TRW
> TC501 timing chain and
> SS367 ironshaft gear should also be changed at the
> same time. These parts
> are more than adequate for stock engines, but for
> you high performance
> buffs, both Chrysler and TRW make double roller
> timing chains and all metal
> gears.
> 
> As club member Dr. Gordon in Conn. will confirm, he
> was driving down the
> highway one day a few months ago, when the engine
> just stopped. Further
> examination showed that not only had the plastic
> timing gear shear its
> teeth, but quite a few push rods and valves had been
> bent. This required
> removing the heads and doing a valve job. Dr.
> Gordon's late 1974 brown
> Interceptor III only had 35,000 miles on it.
> 
> So you see, it's not just mileage but age of the
> car.
> 
> GET THOSE PLASTIC CAM TIMING GEARS CHANGED NOW!
> =============
> Hal Kendall, PT1-75
> 
> 
>
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