> >> The recent alternator topic had a bracket design made of 4130 > angle.>> I've trial fitted an alternator (60 amp, 8.5 lbs) to my > engine and it
> >> looks like I will need 1.5" angle to weld up into the upper > permanent>> mounting brackets.  The lower bracket will be a > slightly bent arm  > >> (not
> >> shown).   I'm having a hard time finding 1/8" 4130 angle in > this  > >> size.
> >> I can get 304 stainless in 1.5" angle, but it is a lot harder to
> >> machine.  Would mild steel be strong enough for these small, upper> >> brackets?  Or, does anyone have a resource for 4130 angle in small
> >> quantities?
> >> The pix also show the stock RX-8 belt idler/tensioner roughly > sitting>> in place.  Obviously, the standard unit will not fit, > but it gives me
> >> an idea of what type of idler arrangement might work.   An
> >> idler/tensioner will allow the belt to clear the crank position > > >> sensor,and also allow the alternator to be fixed in place.    > I'm  > >> also not
> >> going to keep the ignitors in their stock position, due to height
> >> issues.
> >> Thanks
> >> Scott Gettings
> > >> Looks good.
> >> .065" or .090" 4130 will work  fine if you
> >> weld washers around the bolt holes. Long story but
> >> it has to do with bolt bearing stress.
> >> -------------------------------------------------
> >> BTW Scott that is a cool looking oil pan. Where did that come
> >> from?
> >> Paul Lamar ...No rotor no motor.
> > > > The oil pan is a Greddy that came with my engine.  It just > happens to
> > be on the bare engine because I'm drilling oil level sensor > holes in
> > the pan Ed made for me.  When I'm done, I'll put the pan on my RX8
> > Shinka.
> >
> > Scott Gettings
> > Scott, I make my own 4130 angle by welding two pieces together. It is
> easy and fast if you have a TIG.  Another advantage is that it will
> be a true 90 degrees.     Jerry
>
Thanks, Jerry.  I'm still in the gas-welding era, with only fair
skills.  I'll weld little things on my plane, but I like to keep it as
simple as possible.  There are a lot of aerospace welders and
machinists around here at the Space Center -- so I can get anything
done with enough time and money..

Scott Gettings

I did not know you were that far North Scott. I could have stoped
in last week.

Paul Lamar

Rats!  I wish I had known you were nearby. From the posts, I thought
you were going to be on the west coast, or up near Tracy's.  Sorry.  We
always have nice place to stay if you are in the area!  You can even
drive my Shinka!

Scott Gettings

I was at Tracy's but my publisher is in Daytona Beach and they
have a house I can stay in in Edgewater. I use the Bee Line to
get back and fourth to Orlando as route 4 is grid lock most of
the time. Robin was at Disney Land Coronado Hotel (worlds largest
tourist trap :)) for the Women in Aviation conference.