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
13bwagon ·
w8ac
or a cold plug w7ac never ran one
champion alos make good plugs
grumble ·
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.
68AutoBug ·
grumble wrote: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.
I have always used BOSCH W8AC plugs... [German]
without any problems...
I see a few USA VW shops selling NGK plugs..
and recommended them as the best...??
LEE
PS: always buy from a VW shop for the correct plugs...
I have seen auto shops sell incorrect plugs for VWs because they don't carry the correct plugs...
LEE
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68AutoBug ·
13bwagon wrote:w8ac BOSCH [German]
or a cold plug w7ac never ran one
champion alos make good plugs
HI
I have only ever used champion in lawn mowers...
always had a bad reputation many years ago...
even though most racing cars have their stickers on them...??
LEE
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68AutoBug ·
BERU was a good german plug years ago...
VW dealers always used them...
LEE
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bugzla ·
only ever had problems with the ngk plugs to at least im not the only one 😀
matberry ·
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.
grumble ·
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.
bus914 ·
let me know if you want a set of NGK BR6HIX
Phil74Camper ·
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 get beru platinum from Ben Durie Automotive
ian.mezz ·
bosch super w10ac
bugzla ·
farout ian thats a large number whats ur head temps like
57oval ·
ian.mezz wrote:bosch super w10ac
I use the same plugs on my twin carb 36hp
bugzla ·
anybody else used this plug as well, be very interested in knowing more on the performance of this plug
donn ·
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.
bus914 ·
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.
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?
grumble ·
I use copper kote,it is available at marine suppliers or also some of the aftermarket stores Repco etc.