<VV> Re: Thermisters (Now plug depth)

[Ron]

These originally (I think) came out for Volkswagens many years ago and seem 
to be well proven.
RonH

----- Original Message ----- 
From: <RoboMan91324 at aol.com>
To: <NicolCS at aol.com>; <virtualvairs at corvair.org>
Sent: Monday, August 15, 2005 10:25 AM
Subject: <VV> Re: Thermisters (Now plug depth)


> Hello Craggie,
>
> Thanks for the quick response.  The either / or use of the washer or
> thermocouple makes sense.  Now my concern is how robust is the setup.  If 
> you (or
> someone who doesn't know to be gentle) cranks on the sparkplug while 
> tightening
> it, can damage be done to the thermocouple.  Also, what if the "tiny 
> leads" get
> damaged?  How expensive is a replacement?
>
> I would also like to know if the gauge can be adapted to be installed in 
> the
> standard spot on the dash pod or must it be mounted elsewhere?  Lastly, 
> can I
> assume that two thermocouples can come into the gauge through the use of a
> switch.  This would allow the user to monitor the temp in either head.  I 
> seem to
> recall someone talking about a system that would switch itself between two
> inputs.  Is this part of the system we are discussing, part of a different
> system or a faulty memory on my part?
>
> Do you have a link to the manufacturer's website?
>
> Thanks in advance.
> ~~~~~~~~~~~~~~
> In a message dated 8/15/2005 10:01:15 AM Pacific Daylight Time, NicolCS
> writes:
>
>> <snip> I have always wondered if there is any issue with sparkplug thread
>> depth when you use an under-the-plug thermistor. Doc. <unsnip>
>>
>> I've been reading and hearing about this carbon thing since the beginning 
>> of
>> time, but, you know I've never actually experienced it.  I wonder if it's
>> one of those myths that just develops a life of it's own.
>>
>> As far as the VDO thermocouple (it's not a thermister) is concerned, it
>> substitutes for the washer and is about the same thickness so I don't 
>> think it's
>> of any concern relative to plug depth. The hassle with the VDO 
>> thermocouple
>> is in keeping it from rotating as you install the plug. (have to trap it 
>> with
>> a skinny screwdriver) and getting the tiny leads up through the shroud 
>> (cut
>> a groove next to the boot or cut a groove in the boot).  They work, but 
>> they
>> are a hassle.
>> Craiggie
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