Does anyone know if the thickness is printed on the cam shims or the solid buckets somewhere (depending on which I have) - or is this something I'll need to...
they have ink stamps on them originally, but that is soon to wear off once they are put into service. as for measuring the 1 pc tappet, you need to measure...
Thanks Rob - useful info... I'm guessing that a common 0-1" micrometer won't clear the tappet skirts on the 1 pc buckets and I'll have to come up with...
yeah, i find that strange too. the first batch of american zetecs (95-97 contour) had hydraulic tappets, so maybe they discovered it really wasn't necessary to...
Hello! I'm Luca from Italy (naples) and I have a Ford Fiesta 1.25i with Zetec-Se engine. I'm tryng to individuate the EGR valves, but I didn't find it. Where...
O.k. rob, I call on you once again. I'm mostly likely get the Accel Super EDIS coil Pack for my ZETEC engine in my zx2. my question is what other things would...
Timotee
jobe_maximass@...
Aug 7, 2003 7:24 am
8308
ok, my take on stuff like accel coils, racing wires and plugs, and how the "make" hp... coils with higher voltage output over stock are only really needed when...
... Don't modern ignition systems need a certain amount of resistance to work correctly? Eill the plugs provide enough or is some additional needed in the...
The short answer? No. The plug acts as a resistor, and often has an added resistor inside to add even more resistance. Resistors reduce any possible noise...
... Who in the world would ever believe this crap? Rob's is talking common sense and realities. He has no chance against marketing and hype. To bad more people...
Ryan and all, Some auto electronics, if I may ... Not current, but voltage. Current is what you get when you apply voltage across a resistance. Use the...
Excellence again, I was going to mention that voltage is what determines the spark gap that can be jumped, but Stan gave us a great lesson. Some superficial...
Hey Guys. I have a pretty highly modified ZX3 engine in my Superformance S1 Roadster. Ford Racing Head Piper Road/Rally Cams JE 10.5:1 Pistons Weber Alpha...
the plugs are resistor units - but the main reason for the resistance in the wires is am radio signal interference. the low resistance wires will mess with the...
yeah, go figure. i'm trying to talk a customer out of buying a coil. lol. thanks for recognizing the honesty though. regards, rob green zxtuner.com p.s. Please...
fuel pressure issues? i know the stock pcm of zetec focus and zx2's run at 40 psi, except at hot starts and initial start ups - it then jumps to 55 psi. is the...
i like the plumbing analogy. mind if i use that? this brings me to another mystery... plug gap. what is the real advantage of increasing plug gap? is the arc...
Small gaps do require less voltage. Bigger gaps do a better job of starting the flame front. High RPM's give the coil less time to build up a good magnetic...
Thanks, Stan, I just went through all this stuff in Physics 2 (had to take it over again, ugh) and it's still like a monkey trying to force a square peg...
... What type of fuel are you running with 10.5:1? Base timing? What brand, material, heat range of plugs? What are your oil and water temps when this ...
A gentleman that was on the list a while ago said he did some rather exhaustive testing on the Zetec, and one of the parameters he tested was the spark plug...
THANK YOU. great info as always. i've noticed more preignition on my car at 3000-3500 rpm, so maybe my plug gap is getting a bit big through wear? interesting ...
Pre-ignition usually is from high combustion temps lighting off the fuel air charge before the spark fires, not usually a plug specific deal, but could be...
yes - but i'm wondering if the higher heat and subsequent leaner mixture is enough to make things go ping with the gap a little bigger... regards, rob green ...
In my limited experience with spark plugs, "hotter plugs" is a reference to how fact the plug cools during the exhaust stroke. Kind of like a R number for...
Hi Rob Actually the 'only' reason that there's a resistor in the plugs/wires is to stop the Spark plug, once the gap has been jumped, shorting the coil and ...
sounds like your theory is sound. i know, in the years of being a parts man, if a given motor had two hp outputs, the higher output motor always used the...
I agree, as a further point of proof, look at a welder. In particular a TIG welder where the arc is started not by touching, but with an arc assist circuit. ...
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