Nissan 200SX Club - South Africa

johansx wrote:What does the spark plus look like after a short run? Soot, lots of carbon or clean?

they where clean the first time i pulled them. Going to check again in the week now that i have more km on them

Daniel, you know of course that I follow these threads very carefully? Why, because my sx is doing the same since a week ago. Great balls of white smoke during decompression, sort of smoke during acceleration and also smokinf badly during idling. And if I touch the feul pedal slightly during idling, it also smokes like hell. I can smell the oil burning. One other thing though - I dont get the boost up to 1 Bar. 0.5 the most!!!!!

Some members tell me it is turbo seals, and then we get the answers on valvestemseals etc. I need to do compression test, remove turbo geuso meter with other to check boost. To check sparkplugs.

So you slightly in front with the problem solving.

Cylinder leakage test=
pump compressed air into cyl while at tdc. Air runs through a gauge which shows you a percentage pressure loss.
Anything over 20% leak is poked you can also listen at the intake and exhaust for air leaks past the valves.

If there is plenty air coming out of the breather with no intake or exh leaks then the rings are shot.

Thanks Calibrator


Freddie i dont get smoke on idle at all, or perhaps not yet anyway


Anybody know where i can buy or borrow a Cylinder leakage tester

its not cheap hey... expect to fork out above R500... Last one I saw was over a R2000 but it was as Snap-On item. And you'll need a compressor.

I have a Snap On one

i have compressor

I have a snap on one, a compressor and a oscillosope

hehehe, was expecting a reply like that
its like throwing a stone into a cave to see what comes out

The Calibrator wrote:I have a snap on one, a compressor and a oscillosope

i have a strap on one too. whats the other stuff used for???

To pump you car full of shit and then listen to it squeeling.