[T3] Spark Plug Life...

[Keith Park]

65K!  WOW John!

Generally, in the old days, 15K you replaced the plugs.
The GM HEI ignitions systems would jump quite the gap and wore the plugs
down to what Jim described and still ran at 60Kmi or so.

John, send us a picture of your "Worn knubs" when you get them out.

:-)

Keith


Topnotch Restorations
topnotch at nycap.rr.com
http://www.a383ina68.addr.com/radiorest/main.htm
71 Squareback  "Hothe"
65 Notchback  "El Baja Rojo"
93 RX7  "Redstur"
87 Golf  "Winterat"
 
-----Original Message-----
From: type3-vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org]
On Behalf Of John Jaranson
Sent: Monday, November 14, 2016 10:14 PM
To: type3 at vwtype3.org
Subject: Re: [T3] Spark Plug Life...

On Nov 14, 2016, at 9:31 PM, Jim Adney wrote:

> On 14 Nov 2016 at 23:50, J. Jonik wrote:
> 
>> What's rule of thumb about how long spark plugs last?
> 
> The official replacement interval for FI cars was 12 kmiles. I tend 
> to get much more than that out of them, but that may be partly due to 
> the Delta Mark 10 CDI ignition units I use.
> 

Hmmmm, I wonder if that is one of the reasons Sophy has started running
rougher than normal.  I still have the same spark plugs in her from when I
rebuilt the engine approximately 65k miles ago.  Standard point ignition
too.  I believe they are standard Bosch W8AC plugs as well.  Nothing fancy.

I do plan to pull her engine this winter and give it a once over.  I think
it is time.

Later,
John Jaranson
www.carartbyjohn.com




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