Sender: <marv@lancaironline.net> (Marvin Kaye)
To: flyrotary
Date: Wed, 05 Mar 2003 08:09:53 -0500
Message-ID: <redirect-2044180@logan.com>
From: peon@pacific.net.au
MIME-Version: 1.0
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Subject: Re: [FlyRotary] RX-7 Starter?
Reply-to: leon@aerota.com
Priority: normal
In-reply-to: <list-2043977@logan.com>

On 4 Mar 2003, at 23:23, Ed Anderson wrote:


> Does anyone know whether this is a Mazda Starter and if so 
> which year and model (automatic/manual transmission).
> 
> Ed Anderson
> Matthews, NC
> RV-6A N494BW
> eanderson@carolina.rr.com
> 

Hi Ed,

Can you post a pic of what you have please??  The numbers are 
basically meaningless,  as I think they are Mitsubishi Electric 
numbers.  Mazda numbers go like this.  #### ## ### (A)  

As an aside,  and for those who are interested,  The first 4 
alphanumeric digits identify the model  (1757 is RX4 13B Luce,  
N326 is FC RX7 etc),  the second pair refer to the parts goup (e.g.,  
10,  11,  23 for engine) ,  and the last three,  the particular part 
(304 is an apex seal spring).  (The optional letter denotes 
supercession series.  B means it's the second mod of this 
particular part #,  which means they have re-designed it twice after 
the oriiginal).

So 

1757 11 304 
are 13B RX4 Apex Seal Springs

1011 11 304B 
are 12A Apex seal springs and this is the second supercession.

All first generation RX7s,  Chassis # starts with SA22C... locally 
know as Series I,  II,  & III have a bottom mounted starter that fitted 
the "M" type smooth case integral bell housing type gearbox.  
These starters are all interchangeable between series,  at least 
here in Oz.  The manual is different from the auto.  The auto,  a 
Jatco 3N71B 3 speed,  has a very short snout,  and is basically the 
same as earlier model auto starters.

The  Second Generation  RX7, Chassis # starting with FC..., and 
locally know as Series IV and V,  the NA engine retained the "M" 
type "sandwich plate"  type gearbox and starter of the previous 
generation (more or less),  and had the same size flywheel and ring 
gear..

The FC... TURBO had a different set-up. It used the "R" type 'box" 
type gearbox with a separate LARGER bell housing. The flywheel 
and the clutch assy was bigger in diameter to take the extrra 
power,  and there was a differnt starter motor,  and the solenoid 
was in a different position (looking from the rear,  basically 8 
O'Clock instead of nearly 12 O'Clock).  

The auto,  a 4N71B Jatco 4 speed,  AND the TURBO manual then 
used the same bottom mounted starter for the first time. Futher,  
the snout of the FC ... starter is a bit longer than the SA22C ... 
manual starters.

(Another interesting but basically useless piece of trivia is that the 
ring gears are identical TOOTH wise, and the same outside 
diameter, but the auto ring gear is slightly deeper in section and 
won't fit on a manual flywheel)

The FD.... (REW '92 0n)  known locally here as the Series VI,  has 
a very similar starter motor,  but a SLIGHTLY different bolt 
arrangement,  and can quite  easily be mistaken for an FC unless 
you are familiar with them.

We never had any FD autos here in Oz,  but from what I've been 
told,  in the Hew Hess Hay,  they have the same side starter setup 
as the Cosmo 2 & 3 rotor engines.

Something I've been meaning to do for a long time is go and take 
some pix of all the different starter motors  an bell housings so that 
people can easliy identify them.  If I can find time to scratch 
myself,  I might just do that in the near future,  but don't hold your 
breath.  

It could take me weeks to round up all the different models!!  
However,  the info above should assist.  However,  the BEST way 
is to go to a Mazda specialist (not a dealer,  but some one like 
Dave Atkins, Bruce Turrentine or Pineapple or MazdaTrix etc) and 
they SHOULD be able to tell you just by looking.

But to save youi running around all over the countryside,  just send 
me a couple of pix from different angles of the stater you have and 
your Ross case.  I should be able to identify it.

Cheers buddy,

Leon


Best Wishes & Kindest Regards,

Leon Promet
Aerota.com
leon@aerota.com
0408 223 675