Re: [Chrysler300] fan, clutch, water pump

[Mike Apfelbeck <moparmike@xxxx>]

At 11:43 AM 12/24/2003 -0800, ROBERT MOORE wrote:
> First of all: Happy Holidays to all.
>
> I would like to know what the difference is between fan clutches, if any 
> and or does it make a difference? I seem to have a lot of fan noise going 
> down the road.

There are basically two types, one type is thermostatically activated and 
freewheels until it is engaged in response to warmer air flowing past it 
(usually found on a/c cars), and the other one is centrifugally operated 
and freewheels at higher rpms (typically found on muscle cars).


> What is the difference in water pumps? I have three different styles.

All I've seen are two types, one with a larger impeller than the other, I 
believe the smaller impeller was used on the a/c cars. As far as the water 
pump housings go, there are several variations, different locations on them 
for temp senders, heater connections and such, some late model B motor 
housings even have the lower radiator hose on the opposite side.


> What is the difference between a 383 and a 413 ?

A 413 has a longer stroke (3.75" vs 3.38")and a smaller bore (4.18" vs 
4.25") than a 383, the block is also a little bit taller and wider across 
the top. Cylinder heads, motor mounts,oil pans, water pumps and oil pumps 
will interchange between them. Distributors, pushrods, intake manifolds & 
connecting rods are different between the two motors are different because 
of the different block deck height.


> Give me a cooling system class 101..
>
> Thanks in advance
>
> Bob