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Chat General Discussion About The Nissan 240SX and Nissan Z Cars |
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#1 |
Join Date: Apr 2013
Location: Tampa FL
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![]() Im new to owning a redtop sr20det and doing my first round of preventive maintenance on it. I wanted to see what condition the spark plugs were in what type and what gap. I unscrewed the top part and took out the thing that goes down to the sparkplug, i think that is the coil pack?, and its covered in oil, is that normal? Or is there a blow seal?
I didnt take the spark plug out yet, i just took off the part that connects from the spark plug wire to plug (coil pack?). Once i saw it covered and dripping of oil i got scurd and put it right back in and back on, lol. I expected the chamber to be clean. I'm a total newb and just wanna make sure that its ok before i proceed forward! |
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#2 |
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Your valve cover gasket is leaking oil in the spark plug hole. The oil in there can cause issues with ignition and you need to replace that gasket. It's really simple to fix.
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#6 | |
Join Date: Apr 2013
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The sr has a t28 turbo and is at 20psi, i would think maybe there would be a better one than OEM |
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#9 | |
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The reason I ask is I will bet that you are reading 15-12 on the negative side... hence why you are "boosting" up to 20psi.. I would venture to guess that you have a leak sir. ![]() |
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#10 |
Join Date: Apr 2013
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T28 s15 Dbb turbo, and is pushing 20 psi form what the gauge is reading. It has a Greddy Profec b spec 2 boost controller as well, and i put it back to default settings but still pushing 20... drives fine and all but im not really triyng to make it boost at all until i get it all figured out and working properly
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#11 | |
Join Date: Apr 2013
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#12 | |
Leaky Injector
Join Date: Mar 2013
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I would bet something very close to the inside of my right leg... you have a leak... and since you said he dogged it out... here is another question for you... is the car lowered? does the car have a fmic? if the answers to both these questions is "yes"... I bet you will find the leak on the intercooler/couplings/piping right up front... you are supposed to be at -20 with no leaks mang. |
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#14 | |
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#15 |
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Im curious about this car. Did you recently buy it with the swap already done? The s15 t28 isnt efficient past about 18psi, so youre doing more harm than good running it to 20, if that really is the case. And since the profec's default settings are about 14.5 psi with average "gain" and "set gain" I have a sneaky suspicion youre going WOT in first gear and spiking like a motherfucker.
Change out the valve cover gaskets. BTW, what else does it have on it if youre effectively maxing out the boost on a t28? |
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#17 | |
Leaky Injector
Join Date: Mar 2013
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I bet he isn't actually boosting to 20, I bet he is getting to about 12 psi but has a bad leak and he doesn't have the correct vacuum... since his gauge is missing 16ish on the negative side... his gauge is lying to him telling him he is getting madawesomesuperboostyo... when he is only getting stock boost...with a nasty leak... which means his car just smells like gas... |
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#18 | |
Leaky Injector
Join Date: Mar 2013
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![]() you just said the guy before you dogged it out... Just assume everything that is non-durable/blowable is fucked. Change the oil, get new coolant, change out the gaskets, change the spark plugs, fix the turbo leak, go to a reputable shop and have them compression test your engine... then drive it around confident that you have paid for your sins. |
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#19 |
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I dont think you understand. Oil fouled spark plugs are cause by bad rings in the cylinder. The oil thats in the sparkplug hole is coming from the valvecover. Regardless of the condition of what the spark plug tips look like, you will need to replace the valvecover gaskets or else you'll have ignition failure for that specific cylinder.
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#20 | |
Join Date: Apr 2013
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#21 | |
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#22 | |
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#23 | |
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When you pull off the valve cover you will see the 5 O gaskets.
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#24 | |
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#25 |
Join Date: Apr 2013
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ohhhhh i get it now, for some reason i was thinking the were around the plugs themselves, and not the top of the galleys. So then that the spark plug gaskets are the only replacement needed, and not the valve cover gasket or just go ahead and do both?
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#28 | |
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#29 |
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You dont need rtv except for around the half circle cutouts on the front and back of the head on the s13 sr, i have always used the red for that with success. Just look at the fsm for valve cover installation procedure and follow that. Easy
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