Hi All
Just wondering what sparkplugs people are using in their bugs. I seem to be having problems(cylinders missing, dead spark) with NGK B5HS plugs in my 1600tp. I have a standard 1600tp with Kads and Pertronix ignition(putting this in with the new plugs).

baja_01

w8ac
or a cold plug w7ac never ran one
champion alos make good plugs

W8AC is the one that is recommended and I have used successfully over the past 40 years,NGK's are a good plug in water cooled emgines but I found they are not as good as the Bosch,also they are slightly longer in the thread and tend to protrude into the combustion chamber. This can often cause problems on removal after a prolonged service period.

BERU was a good german plug years ago...

VW dealers always used them...

LEE


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only ever had problems with the ngk plugs to at least im not the only one

Been using Bosch for ever, W8ac or W8dc (now cc) for type 4 or 043 heads, but now with the new CB heads needing the smaller plug, only NGK available D8ea , still recommend Bosch if you can. I heard years ago that the Bosch and Beru were the only plugs with correctly formed threads for the Volksie, rolled as opposed to cut (or something similar).... correct me if I'm wrong.

Matberry I believe you are right regarding the thread formation,I heard this a lot of years ago when I was an apprentice,I think it was from Roland Founk or Hermann Maher who were our service reps at the time.Their knowledge was unbelievable for an awestruck apprentice.

let me know if you want a set of NGK BR6HIX

I heard that as well; the Champion plug itself was OK but its threads didn't quite work with the aluminium VW head. Still, they were very popular once.

You can download the Bosch catalogue at http://www.bosch.com.au/content/language1/html/2265.htm 

German-made Beru spark plugs are still available too - you can select the right one for your VW at http://www.beru.com/english/produkte/zuendkerzen/ultraxtitan.php  Not sure who stocks them here though.

you can get beru platinum from Ben Durie Automotive

bosch super w10ac

farout ian thats a large number whats ur head temps like

anybody else used this plug as well, be very interested in knowing more on the performance of this plug

Called in to pick up a set of plugs today, was handed 4 Bosch W8AC, asked the mechanic if there was a better one to use, he just looked at me kinda funny and said "why would you want something else? these are good quality and work well, their reliable and the best so that's the ones to use"
Guess that settled it for me.

The number indicates the heat range that the plug is designed for. For Bosch the higher the number the hotter the plug gets to burn off soot (opposite for NGK). If the plug is too "hot" for your heads it can cause pre-ignition. For a performance motor you would want to go a "cooler" plug if not going for the factory specified one.

http://www.aa1car.com/library/sprkplg2.htm

Read / heard somewhere that it is a good idea to use an antisieze on the plug threads, where was that and just what is it (yeah, I know it's to stop the thread siezing in the head! ), where is it available from?

I use copper kote,it is available at marine suppliers or also some of the aftermarket stores Repco etc.