RE: Perfecting a '71 Sunroof (was RE: [T3] '70 square tuning)

["Adriel Huntington Rowley" <architect_7@hotmail.com>]

-----Original Message-----
From: Jim Adney [mailto:jadney@vwtype3.org] 

On 26 May 2007 at 20:25, Adriel Huntington Rowley wrote:

>> From: Jim Adney [mailto:jadney@vwtype3.org] 

>> >I'd be thinking about spark. If the SP wires are new, then it's 
>> >unlikely that there's something wrong there, but I'd check the 
>> >resistance thru each one anyway. The 4 to the 4 plugs should measure 
>> >~1 kOhm. The coil wire should measure ~0 Ohms. The rotor should 
>> >measure ~ 5 kOhms. Anything close is good enough. Check the wires to 
>> >make sure they're not rubbed thru anywhere. 
>> 
>> I just put on new wires that all checked out.  The rotors (checked to see
if
>> there were any good ones) stayed at 1, so I guess I have to replace that.
>> The meter was set properly; I checked it on other things.

>What does "1" mean in this case? If this was a very low resistance, 
>then you've just got a cheap rotor that doesn't have a resistor in 
>it, but it will work fine; t will just generate a little more radio 
>noise. If "1" means something very large, much more than 5000 Ohms, 
>then it is a original style rotor that has a failed resistor in it. 
>That could very well be your problem. Buy a correct Bosch one.

>(I'm assuming that your probes were making good contact with the 
>rotor contacts.)

The meter read one on all scales, no matter where I put (or gabbed
depending) it.  

In order to replace the rotor I needed to know what distributor I have.
Turns out it is a 1974-76 Porsche 914/4 distributor for GA engines.  But, I
can not find any parts for it.  Now I am thinking I am going to take up the
offer of help and replace it with the Type 3 distributor.  I keep running
into problem after problem, and I rather deal with one known than multiple
possibilities.  


Sincerely,
Adriel H. Rowley


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