: Engine noise ?????



SR20 Infiniti
May 16, 02, 06:36 AM
Before you bitch I have READ all the past forums and could not find anything

Here it is-

My only engine mod is a cone filter with a 4 inch pipe behind it to the mass air sensor, its pretty loud for just an intake and was fine for the past 3 months. One day I started my car up and drove off. I noticed a ticking or rattling sound from the engine plus my intake got EXTREMLY LOUD from 4600RPM and up as if I had VTEC, its as loud as my buddys Type R who has a CAI. The ticking can be heard from 1500-3200RPM then goes away, as the needle climbs I also notice a slight loss in power. When I criuse in 4th and its at about 2300RPM and I want more power I push the throttle and rattles a bit more this is also when I feel a loss in power. Before all this my car was running a little lean then I changed my plugs and wires and still the sound persists and isnt as lean, I also checked all clamps for leaks and my timing. My oil is fine aswell. The car still feels pretty fast but the sound is annoying almost like my posts and this one is the most important so please answer as best as you can THANKS !!:*( :*( :*(

NismoPC
May 16, 02, 06:58 AM
Not bitchin', but I just did a search on the forum, this forum, with "engine noise" and I found the following threads. All three of them can be related to your question and all three seem to have the same results.

Here!:

http://www.g20.net/forum/showthread.php?s=&threadid=875&highlight=engine+noise

http://www.g20.net/forum/showthread.php?s=&threadid=770&highlight=engine+noise

http://www.g20.net/forum/showthread.php?s=&threadid=192&highlight=engine+noise

NismoPC
May 16, 02, 07:02 AM
Also, the EGR valve could be bad and causing vaccum leak. Or the EGR/BPT passage needs cleaning. Here!:
http://www.se-r.net/car_info/problems/index.html#Surge%20and%20hesitation

poppy_morenito
May 16, 02, 07:25 AM
Man these two are like Matt Damon and that harvard guy in the bar scene in GOODWILL HUNTING when posting in the forum :lol:

How do like them search engine apples ? :o

NismoPC
May 16, 02, 07:33 AM
Originally posted by poppy_morenito
Man these two are like Matt Damon and that harvard guy in the bar scene in GOODWILL HUNTING when posting in the forum :lol:

How do like them search engine apples ? :o

Oh stop! :paranoid: I'm being nice! :)

Chris
May 16, 02, 11:12 AM
You are being helpful.. give the guy a break folks!!!

(grin)

...ever entertaining though:cheeky: :lol:

SR20 Infiniti
May 17, 02, 01:56 AM
their problems seem different than mine somebody help !!!!!!

JustinP10
May 17, 02, 02:31 AM
Umm.. this is like the exact same post as in the intake as loud as a type R's post you started maybe a week or so ago?

How do you know your car is running lean? or now not as lean since you did a tune up. did you also determine if it's detonation or not?

SR20 Infiniti
May 17, 02, 02:54 AM
i can tell the difference whether my car is running not as lean because i can smell it. I am still unsure about detonation, besides knowing that it means the engine will blow. Do you think it could be my timing?

SR20 Infiniti
May 17, 02, 02:59 AM
Forgot to mention that i drive about 1200 miles a month and i burn over a quart a month. does this have sumthing to do with the ticking?!:dead:

poppy_morenito
May 17, 02, 03:18 AM
Well that can not be good. You acutally lose a quart each month I run 1100 a month and donth burn oil like that. You need a check up quick before you burn your motor up

NismoPC
May 17, 02, 06:05 AM
Not good at all.

Possible head gasket leaking or a cracked block. Smell your oil and see if there is a scent of antifreeze. If so, your head gasket is blown or your block could be cracked internally.

With your engine burn ing that much oil in a months time I will suspect your engine is on it's way out. Need a mechanic to look at that one. Don't think we'll be able to provide the correct answer to your issue!

Geo
May 17, 02, 06:18 AM
Originally posted by 6'5 290lbs in a G20
i can tell the difference whether my car is running not as lean because i can smell it.

Sorry, but your nose just isn't that accurate.

Now, if you checked the plugs and found them to be ash white I might believe your were running lean.


Originally posted by 6'5 290lbs in a G20
I am still unsure about detonation, besides knowing that it means the engine will blow. Do you think it could be my timing?

Could be. I'm almost certain it's pinging - especially at the rpm range you mention and the fact that it goes away as the revs climb. This could certainly be a timing issue.

GTA_G20
May 17, 02, 10:13 AM
Originally posted by 6'5 290lbs in a G20
Forgot to mention that i drive about 1200 miles a month and i burn over a quart a month. does this have sumthing to do with the ticking?!:dead:


I think I know what your problem is seriously.

If your engine drinks that much oil. Your rings are probably shot to sh!t and you are experiencing blow by. The combustion chamber is basically weak and is not keeping compression on the power stroke. I dont know but you could get a compression test done and that should help you realize that your rings are sh!t.

Oh yea, u asked before why your valve cover said nissan. Whoever had the car before you probably beat the living hell outta that car blew the original "infiniti" sr20 and replaced it with a "nissan" sr20 and just didnt swap valve covers.

DONT BE SCARED ITS THE SAME ENGINE!

Chris
May 17, 02, 11:45 AM
:lol:


I wonder how many other used g20's have this same issue?!? --swapped engines from an SE-R :crosseyed

JustinP10
May 17, 02, 11:55 AM
Well, if the rings are bad and there is oil making it's way to the combustion chambers wouldn't that lead to detonation too?

SR20 Infiniti
May 17, 02, 12:23 PM
when I take it to redline about 75 % of the time some black smoke will come from the exhaust

SR20 Infiniti
May 17, 02, 12:31 PM
what would explain my intake getting 3 times as loud overnight ??

FF Drifter
May 17, 02, 12:38 PM
Someone who knows where you live, doesn't like you, and owns a nice set of tools.

FF Drifter
May 17, 02, 12:39 PM
Okay okay okay, maybe something is hella leaking, or something is coming loose *wait, aren't those two related?* Either way from reading some of your more entertaining posts, I'd say it's about time to get another engine, unless you have real sentimental value for this engine and deep pockets. May I suggest the SR20DET?

SR20 Infiniti
May 17, 02, 12:52 PM
man I havent even paid for my ride and I live on the eastside of town(poor):*( :*(

SR20DEe
May 17, 02, 01:01 PM
ive had a similar problem a month ago with a heat shield type rattle coming from behind the engine. at the time i had just had my timing done and i had a nissan oem oil filter... when i changed my oil i tried using a mobile 1 oil filter.. the rattle dissapated after 1 trip. :confused: ok so what im gonna do today is change my oil with the oem again.. if the oem rattles. it looks like im gonna have a new brand ;)

SR20DEe
May 17, 02, 01:03 PM
as far as smoke at high rpms.. rings ;) im pretty sure..

MR. RYTE
May 17, 02, 03:36 PM
Originally posted by 6'5 290lbs in a G20
man I havent even paid for my ride and I live on the eastside of town(poor):*( :*(
You're having major car trouble and you still have to pay off your car?!?:confused:

Ouch!! Now THAT really sucks!:(

GTA_G20
May 17, 02, 04:28 PM
Originally posted by 6'5 290lbs in a G20
when I take it to redline about 75 % of the time some black smoke will come from the exhaust

Black smoke for sure? black smoke is a rich mixture. Blue smoke however is burnt oil. Figure out which one.


Originally posted by 6'5 290lbs in a G20
what would explain my intake getting 3 times as loud overnight ??


Something is loose you have to have a leak somewhere in your intake pipng.

SR20 Infiniti
May 18, 02, 01:31 AM
smoke is blue and piping is fine

GTA_G20
May 18, 02, 04:14 AM
Sorry to hear that bro. Your engine once again is toasted! You will need a new engine or a rebuild. Blue smoke is burnt oil. Burnt oil is worn rings! Worn rings is blow by. If your oil gets black really fast it is because the combustion not only takes place in the combustion chamber but also in your oil pan. Be careful. Its driveable but will only get worse. Sorry to hear you owe money on the car. Some people really dont take care of thier car and causes the used buyer a headache.

Either you will new to do a rebuild or a complete engine overhaul.

Geo
May 18, 02, 06:26 AM
Well, let's have a little sanity check here.

The oil could very well be from a source other than bad rings. It could also explain the mid-range detonation since oil effectively reduces the octane rating of the mixture

The first thing I would suggest doing is replacing your PCV valve. If they become stuck you will get a lot of pressure in the engine and that will cause a lot of oil to be pumped into your intake tract since the head vents to the intake.

Heavy oil consumption can also come from bad valve guides. My 76 Scirocco used to go through a quart of oil every tank of gas (about 300 miles). But, other than costing a lot of money, it didn't really hurt anything.

Don't they these guys scare you just yet. Some folks are just being pricks. Check the links given to SE-R.net. You'll find a lot of good information there and specifically about tuning the engine. It's still possible it's the rings, but I wouldn't get terribly worried yet.

SR20 Infiniti
May 19, 02, 02:23 PM
I just noticed that my cars idle is weird now it dips from 900 -400 but never dies but the idle is not rough

TY423
May 19, 02, 06:45 PM
Attn: I don't know if you guys remember me...I'm the one with the EXACT same symptoms as this "6'5 290lbs in a G20" dude. Hey I'm sorry but I am 90% sure that the piston rings are toast. I had the same problem in my 1999 G20t. First my friends said they saw puffs of smoke and crap come out of my exaust when ever I drove my car hard....and after that I felt the car feeling sluggish and less responsive and felt really really bad power loss at high RPM. I finally checked plugs and they were totally melted. Surprisingly my car was still running and felt decent. I talked to some mechanics and they said that I have some SERIOUS problems and that I am detonating. My cylinder temperature is going way way over board and causing meltdown on my plugs. I got a compresion test as well as a leak down test. MY ENGINE WAS TOAST....I think it was (guessing from poor memory) 60,70,45,50 from cylinder 1 through 4. Leak down test proved blown rings. Check your plugs immediately and try not to drive your car it could really mess up the motor. I ended up finding a used motor and just did a motor swap for $1200....but I got lucky and had a hook up...

Here is a link where I have posted some pics of the compression test and some pics of the plugs (http://communities.msn.com/TonyYuCommunity/sr20.msnw?Page=Last)

TY423
May 19, 02, 06:46 PM
and I also have a ticking coming from the valve cover and couple mechanics told me its stuck valves or something...

SR20 Infiniti
May 28, 02, 06:15 PM
FINALLY ITS FIXED its was my timing it was way to advanced I put it back to about 17 degrees is 89 octane OK ?? anyways thanks to everyone who suggested stuff :cheeky:

TY423
May 28, 02, 08:36 PM
wow thats pretty dangerous...detonating...try a compression test...only takes 10 minutes and can tell if you have any damage.

SR20 Infiniti
May 29, 02, 05:09 AM
everything seems fine ill do a compression test one thing is that i feel some sort of slight lag in the 2000-3000rpm range in 1st ???

SR20DEe
May 29, 02, 07:43 AM
just to be fun.. my noise is back in my engine bay at 4600 rpm... if it is deteonation. why would the oil filter being changed affect my particular case... (btw im bone stock with 19* timing)

this only seems to happen when i use oem filters...

the other ones do not..

and its not until the car warms up its every gear past 4600 rpms..

oi.. maybe i should start a new thread...

MR. RYTE
May 29, 02, 09:08 AM
Originally posted by 6'5 290lbs in a G20
FINALLY ITS FIXED its was my timing it was way to advanced I put it back to about 17 degrees is 89 octane OK ?? anyways thanks to everyone who suggested stuff :cheeky:
Your signature said that you have Bosch Platinums in your car. The Bosch Platinums ARE NOT recommened for the G20(SR20DE) engine. The following paragraph will explain why:

"SR20DE owners have engaged in an ongoing and at times very heated debate regarding the effectiveness of Bosch Platinum spark plugs in this engine. Because the stock NGK Platinums are fairly expensive, costing $8 to $15 apiece at dealerships and parts houses, some owners have elected to substitute the less expensive Bosch product come tune-up time. Bosch Platinums typically cost between $2 and $4 apiece at large retail parts outlets. Both plugs are, as their names imply, of the platinum variety and last upwards of 60,000 miles in normal applications.
Several owners have replaced their stock plugs with Bosch Platinums and immediately encountered problems such as poor idling, part-throttle hesitation, surging under deceleration and power loss. Other owners have reported that these plugs worked well for several thousand miles, at which time a gradual decrease in performance over time occurred, accompanied by some or all of the above symptoms.
Conversely, many owners have reported no change in engine behavior after installing Bosch Platinums and went on to experience many thousands of miles of trouble-free motoring. A few even claimed an improvement in overall driveability, but this can probably be discounted as the result of replacing worn-out stock units with new replacement parts."

This quote was taken from this link:
http://www.se-r.net/engine/bosch_vs_ngk.html
:p PS:There will be a quiz on this later.;)

SR20 Infiniti
May 30, 02, 07:00 PM
so should I get some NGK ones ??? i guess the slight hestsitation might be from the plugs but it isnt even that bad I think I can live with it

NismoPC
May 30, 02, 08:18 PM
Originally posted by 6'5 290lbs in a G20
so should I get some NGK ones ??? i guess the slight hestsitation might be from the plugs but it isnt even that bad I think I can live with it

As a temporary replacement, or in my case, permanent replacement, you can use the NGK V-Power Copper plugs. They are the standard conventional plugs for the SR20DE per the owners manual and last only 30,000 miles, but cost about $8 for the whole set.

They are the NGK BKR6E Copper V-Power plugs. Gap them at 0.031-0.035 and make sure you don't buy the BKR6E-11's. They are for the GA16DE.

Great alternative to the PFR6B-11 NGK Platinum plugs! And a great savings too! I would run these in my SR20DE any day compared to the Bosch.

Fraychild
May 31, 02, 07:34 AM
Was this discussion about Spark Plugs, or my man's noisy engine which, by the way, he already fixed! :nervous:
However I must thank you guys for the infos on the plugs, I was wondering myself... :nervous:

I had a blown engine once... yup, my head gasket was shut. Had the whole anitfreeze mix story. The needle would go way over the 'H' in the temperature gauge! I had three choices based on my Mech... Either sell the car, change the engine or rebuild it, which he said would've been a gamble... at a low price. I gambled and rebuilt it... Sucker's been running fine since then! :p Need I mention it was a 92' Civic... :nervous:


(I think I see rotten tomatoes, carrots and lettuce leaves coming full force at me) ... sux to have been in the Rice realm... I'm out!! :rolleyes:

Fraychild
May 31, 02, 07:38 AM
:monkey: I drive a sweet P10 now guys!! ok?? and I love the ride!! :lol: he he!!:nervous: I'm in the luxury world now baby! woo-hoo! :p ... ummm... :paranoid: you could put down the bats... :nervous: ------->:confused:

longbeachgdub
May 31, 02, 03:55 PM
YOUR CAR IS TOO F*CKING OLD....

Come on now, admit 11 years is a long time for one of these little cars to be on the road.

Suck it up dude, unless you have a Benz or a Toyota, your car is ready for the junkyard.

Spare yourself the extra cash and go use it on a down payment for a 02 Mitsubishi Lancer.... or a 99 and up g dub.

NismoPC
May 31, 02, 06:32 PM
Originally posted by longbeachgdub
YOUR CAR IS TOO F*CKING OLD....

Come on now, admit 11 years is a long time for one of these little cars to be on the road.

Suck it up dude, unless you have a Benz or a Toyota, your car is ready for the junkyard.

Spare yourself the extra cash and go use it on a down payment for a 02 Mitsubishi Lancer.... or a 99 and up g dub.

AGAIN! DO YOUR RESEARCH! What is up with the freakin' attitude. Second thread where you flame.

Damn! Look, the SR20DE is good for over 200,000 miles if not more. It is a solid enine, and a great engine. The P10 G20/Primera is a solid car and many have proven how solid it is.

Just because you went and bought a P11 does not give you the right to tell someone their ride is too damn old and to just go plop a down payment on a new car.

I congratulate you that you can go buy a '99, but some of us either don't have the money to spend, don't want to spend the money, or are very content with our 6 to 11 year old cars.

SR20 Infiniti
May 31, 02, 07:15 PM
ya

SR20 Infiniti
May 31, 02, 07:30 PM
went to a parts store and was told that the NGK PFR6B-11 platinum plugs are discontinued is this right ?? then he said that the replacement fo them is 18-3851 also platinum is this right ???

NismoPC
May 31, 02, 09:28 PM
They should be the PFR6G-11. Same plug, new part #.

Actually, the G is a better design than the B, so it's actually a better plug now.