Aussieveedubbers 路 Tech Talk

fowling plugs

https://forums.aussieveedubbers.com/threads/98560/fowling-plugs

whiskey07 路

馃檯Hi I have a 1916 oztrike and have recently had twin 42 kadrons installed as well as a new custom made turbo exhaust system, trouble is now iam constantly fowling plugs but only on the one side, i am putting high burning NGK plugs in but not getting long out of them.

grumble 路

Check your jet sizes and fuel pressure,you will most likely have to change the jetting as it must be running too rich.

whiskey07 路

The jets have been reduced to the lowest size as i was having more problems flat spots and stalling before they were reduced

Bizarre 路

needle and seat stuck??

whiskey07 路

according to my carbie mech Apparently not 馃シ

Sides 路

Were the kads torn down, inspected and cleaned before being bolted up ???

Is the fuel pressure OK ??? (you only want like 3 PSI, and yes a standard VW mechanical pump can exceed this)

modulus 路

whiskey07 wrote:...trouble is now iam constantly fowling plugs ...
Ah well, better than plugging fowls, which is a foul practice.

hth

HappyDaze 路

Was going to suggest you chook them away, and get hotter ones......but I chickened out.馃檮

vassy66T1 路

Which NGK's are you running?

Klaus 路

kads are only 1.5 -2 psi max

DylanTheDubber 路

Check the needle and seat isn't blocked! A lot of later model kads are stuck even from new from the factory they aren't right even when they should be.

From Dylan

matberry 路

As Marcus said, what heat range plug are you using?

68AutoBug 路

whiskey07 wrote:馃檯Hi I have a 1916 oztrike and have recently had twin 42 kadrons installed as well as a new custom made turbo exhaust system, trouble is now iam constantly fowling plugs but only on the one side, i am putting high burning NGK plugs in but not getting long out of them.
it sounds like ONE of the carburetors is running too rich...

You may need colder plugs...

are they long or short reach plugs?

Original VW plugs are 1/2 inch reach [about 12.5mm]
very short thread plugs..

LEE

whiskey07 路

The carbs are new and the plugs are NGK- B4H.