Subject: RX8 starter.
From: ACRE
Date: 11/17/2003, 10:08 AM


Paul,
The bolt pattern looks like the standard TURBO starter as does the
Solenoid
position.

The difference between the TURBO and the manual (apart from the bolt
pattern) is that the Turbo pinion gear sits 3mm deeper in the housing
(at
60mm) that the Manual (at 57mm).

I'm assuming all RX8's are TURBO yes/no !!?

It sure would be helpful to know for bellhousing development -hint !
hint !

I will send a mounting face pattern to check against, you like?
George (down under)

All RX8's are normally aspirated.

I am not sure what you mean by turbo as I have two starters.
One has a 12 tooth pinion and the other a 13 tooth pinion so the
large pilot hole distance from e-shaft center line will vary.
As do the mounting holes BTW. The 12 tooth is far more popular
and is what Tracy designed into his adapter plate.
This one has a 2.625 pilot hole.
12 pinion teeth with a root diameter of roughly 1 inch
and a gear OD of roughly 1.43
Made by Mitsubishi with the following numbers.
70781  and 7107

It will be a few years before the RX8 starters are cost effective.
By that time we might be able to get the starter/alternator Bulent found.

Paul Lamar

Paul,
Your first photo appears to be the Turbo starter, with the mount holes more
toward the face of the ring gear and starter pinion with the solenoid
Opposite  and 13 pinion teeth.

My number is Mit - 70881
You stated 70781 but the photo states 70881, just a typeo !?

The 70781 is the 12 tooth. The photo with text is the 13 tooth 70881.
I need to add text to the other photo. Rather confusing as it is now.

BTW The Turbo starter is different to the auto or manual.

The second photo appears to be the Manual, can't remember the number but
will check it out, but the solenoid is inside the mounting holes.
I didn't remember if there were different teeth count/pinion size - thanks
for that, probably explains the slight difference in mounting positions.

OK so we leave out the possibility of the RX8 starter for the bellhousing,
it looks pretty much the same anyway !
MUCH APPRECIATED!!
George (down under)

Looks only counts in styling and sex :) Here is how far off the 13 tooth is
off from the 12 tooth when fitted up to the manual TX bell housing.

Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2003 All world wide rights reserved.