<VV> pressure retard unit

[Dave Thompson]

He custom built my distributor to stock Spyder (turbo car) specs. Not flight
specs.
Dave

-----Original Message-----
From: J R Read_HML [mailto:hmlinc at sbcglobal.net] 
Sent: Wednesday, September 24, 2008 8:14 PM
To: Dave Thompson
Subject: Re: pressure retard unit

So, is the modified mechanical advance from Mr. Wynne going to present a 
problem?
Later, JR

----- Original Message ----- 
From: "Dave Thompson" <dave.thompson at verizon.net>
To: "'J R Read_HML'" <hmlinc at sbcglobal.net>
Sent: Wednesday, September 24, 2008 10:03 PM
Subject: RE: pressure retard unit


> Yes
>
> -----Original Message-----
> From: J R Read_HML [mailto:hmlinc at sbcglobal.net]
> Sent: Wednesday, September 24, 2008 7:16 PM
> To: Dave Thompson
> Subject: pressure retard unit
>
> Turbo engine?????
> Later, JR
>
> ----- Original Message ----- 
> From: "Dave Thompson" <dave.thompson at verizon.net>
> To: "'Craig Nicol'" <nicolcs at aol.com>; <virtualvairs at corvair.org>
> Sent: Wednesday, September 24, 2008 9:06 PM
> Subject: <VV> Plug wires in wrong position,pressure retard unit too close 
> to
>
> belt
>
>
>> Thanks Guys,
>> I got a multitude of responses from my statement below. I neglected to 
>> say
>> that I have a newly rebuilt distributor on my workbench waiting to be
>> installed. I will fix the distributor orientation when I do.
>>
>> Before I purchased my Corvair last January, I spent several years with
>> delusions of grandeur and was planning to build an airplane. My wallet
>> told
>> me to find a new hobby (my Spyder). During that time I purchased a '65 
>> 110
>> engine and tore it down to be rebuilt as a flight engine. I sent several
>> parts to William Wynne of Flycorvair.com for flight modification. The
>> distributor rebuild was backordered and I never bugged him about it. I
>> have
>> found that the distributor in my Spyder is worn out. So I called William
>> and
>> had him build my back ordered distributor for my Spyder rather than for
>> flight. Below is a description of what was done, copied from his website.
>> He
>> installed correct stock weights, springs and points plate for a Spyder in
>> my
>> distributor.
>>
>> Copied from Flycorvair.com website:
>>
>> [SNIP]
>>
>> "The Distributor housing is thoroughly cleaned and then machined for a
>> second oilite bushing at the base. With two bushings, the shaft is
>> stabilized, effectively eliminating dwell variation. These bushings are
>> line
>> bored to be in perfect alignment. The main shaft is polished in the
>> bearing
>> area and shimmed to minimize play. The mechanical advance is modified to
>> give the full advance required for the horsepower potential of the engine
>> to
>> be tapped. Light weight springs allow the advance to come in far faster
>> than
>> any automotive application. This allows the full advance to be checked
>> while
>> the engine is running at full static rpm, a crucial safety issue. My
>> unique
>> stainless steel points plate is installed on each Distributor. This
>> precision, CNC manufactured plate mounts two sets of stock Corvair points
>> exactly 180 degrees apart. I install two CS788 points sets, lubricate
>> them,
>> then install brand new caps and rotors with all brass contacts.
>>
>> I personally test each Distributor on my 1960 model Allen Tune Up
>> distributor machine. I check the dwell, timing symmetry, start rpm, stop
>> rpm
>> and total advance. Finally the Distributor is given a test run to 5,000
>> rpm
>> to verify that it is free of point bounce and shaft chatter. The
>> Distributor
>> with cap and rotor weighs 2 pounds, .5 ounces. "
>>
>> [SNIP]
>>
>> I plan to install it this weekend, along with new plugs AND using the
>> recent
>> advice from you guys. Wish me luck, I haven't replaced a distributor 
>> since
>
>> I
>> had my Mustang back in the late 70's. I don't expect any problems.
>>
>> Dave
>>
>> P.S. I am hoping the new Distributor will help stop the "coughing" during
>> acceleration.
>>
>> -----Original Message-----
>> Subject: RE: Distributor advance can touching fan belt.
>>
>> Dave wrote:
>> Being a semi-mubie, I never noticed how the plug wires were installed in
>> my
>> cap. NOW I know why my vacuum retard diaphragm is dangerously close to 
>> the
>> belt. The previous owner must have stabbed the distributor wrong and 
>> moved
>> the wires to correct it.... One more project for this weekend.
>>
>> Dave Thompson
>> 63 Spyder vert
>> Westminster, CA
>>
>> Craig replies:
>> If it's that far around, you can probably swing the distributor body
>> exactly
>> 1/6 turn CCW, then move the wires back to where they started from.  Of
>> course when you're done, you'll want to set the timing exactly with a
>> timing
>> light.
>>
>>
>>
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