pretty much another "read my plugs thread". i have looked at pictures and it seems to match 2 different possibilities. can someone tell me for sure what it is? my brothers car has been idling up and down at start up 1700-1300-1700-1300 until it warms up. the exhaust has black oil or something coming out of it and the engine leaks oil, and the parking break all of a sudden went out... anyways is their something that can be causing the idling problem, spark plugs growing fuzz, and oil coming out of the exhaust?

o ya its a 97 prelude

the compression is 210 across, aem short ram, tanabe cat back. this is the same plug in all the pics but they all look the same...

 

looks like nasty old fuel or maybe even a blown headgasket. Has the car been sitting for a long time?

 

the idle problem is definately FITV if it stops on warm-up. IACV would be 50-100RPM difference in bounce like 1300-1400.

hows the car run? those plugs look nasty btw.

 

They just look like he is running slightly lean, burning some oil, and hasn't replaced the plugs in a long time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambbrose &raquo;</TD></TR><TR><TD CLASS="quote">looks like nasty old fuel or maybe even a blown headgasket. Has the car been sitting for a long time?</TD></TR></TABLE>

car gets driven everyday. gets filled up about once a week.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dagle &raquo;</TD></TR><TR><TD CLASS="quote">the idle problem is definately FITV if it stops on warm-up. IACV would be 50-100RPM difference in bounce like 1300-1400.

hows the car run? those plugs look nasty btw. </TD></TR></TABLE>

the car runs fine. thats the odd thing.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">They just look like he is running slightly lean, burning some oil, and hasn't replaced the plugs in a long time.</TD></TR></TABLE>

the plus where replaced when he got the car about 4 months agao

o ya the motor was rebuilt by the first owner. not by him himself but he had a shop do it.
the second owner that sold it to us said that the first owner told him he had it rebuilt because he thought it was burning oil but then he found out it was not

i did a compression test and got 210 across

here is a video. this was after the car had been driven for 15 minutes. you can see all the crap that comes out of the exhaust on the ground. ill take a pic of it today.

 

wow, that's cool....in a bad way. i've had that come from my exhaust before, but not nearly in that volume. I think that is condensation in the exhaust combined with soot flying out. It's not oil, oil would burn before it made it that far. You are burning oil though, you can see that in the blue smoke. change the plugs again, and change your valve cover gasket. That may help a little, but your valve seals probably need to be replaced.

 

Gimme the CBR and I'll come fix it

 

what are the stock plugs? NGK...what

also what are equivalent plugs for it. champion plug wise? i was going to pick up some new NGK ones from my honda dealer (work) but they were $46. i should have found out what NGK's they were but i forgot to ask my parts guy. so in the meen time i need a plug that will be equivalent to them in the meaqn time


Modified by j-rome at 6:27 PM 10/26/2007

 

use the NGK v-power plugs, not the platinums. its the same ngk part # as the platinums (oem plugs) but without the -e on the end, if I remember correctly.

 

umm that "fuzz" are the plugs growing pubes...its totally natural. j/p I have no idea what is causing that.

 

Looks like ash deposits from burning a bit of oil to me.

 

What causes black soot to come out the exhaust?

 

A rich mixture, among other things.

Preludes usually soot a lot because they're tuned very rich from the factory.

 

carbon........

I got a 3 ft circle on my garage door no biggy

 

well i replaced the plugs with some basic champion plugs that their site listed worked for preludes. i bought the $50 stock plugs but are not going to put them in until its fixed up. also the champion plugs have a 2yr unlimited mileage warranty...

anyways it still does everything. so then i cleaned the IACV with some throttle body and intake manifold cleaner(pretty much carb cleaner)
and it still does everything. so my next thing it the TPS and the FITV

 

if any of those things are wrong you will get a check engine light. have your injectors cleaned. also take the car somewhere to get checked out. those cars run rich...but wow thats retarded

 

$50 bucks for plugs.... wow

NGK v power $8 for a set

 

http://www.autolite.com/pdf/PlugTips.pdf

Look at that maybe it will help.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ilikehonda &raquo;</TD></TR><TR><TD CLASS="quote">if any of those things are wrong you will get a check engine light. have your injectors cleaned. also take the car somewhere to get checked out. those cars run rich...but wow thats retarded</TD></TR></TABLE>

how do i clean them? how and with what.

i am taking it to my work (honda dealer) and having a honda mechanic fix a oil leak that he was suppose to fix last time. he just replaced crank seals, timing belt, water pump, oil pump seals, head gasket, and some other stuff that i cant remember to fix the leak but its still their. so i am going to have him try and fix the leak again and look at the idling problem and see what he says. it did the idling before he worked on it so thats not his fault so anyways thats going to be saturday...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cottonwoodz &raquo;</TD></TR><TR><TD CLASS="quote">$50 bucks for plugs.... wow

NGK v power $8 for a set </TD></TR></TABLE>
thats right lol. the sad part is i get a discount since i am at a Honda parts dealer so the price would have been $70 if i did not work there


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lude98SH &raquo;</TD></TR><TR><TD CLASS="quote">http://www.autolite.com/pdf/PlugTips.pdf

Look at that maybe it will help. </TD></TR></TABLE>

it looks like ash deposit and oil fouled, except the cause does not match.

it said ash is caused by the use of leaded fuel (no he only uses premium unleaded), oil aditives(no just regular oil no additives), worn piston rings/valve guides(motor was just rebuilt 15k ago, honed, new rings, pistons pretty much the whole 9 yards)

for oil fouled it says caused by oil in combustion chamber, worn valve guides, worn valve seals(hard to believe since the motor was just rebuilt)

so ya hopefully saturday if he has time i am going to have the mechanic just look at it.

 

ngk v-power X 2.

^^Best money can buy, despite how cheap they are.

I wouldn't put a champion spark plug in my weedeater.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ChrisRicketts &raquo;</TD></TR><TR><TD CLASS="quote">ngk v-power X 2.

^^Best money can buy, despite how cheap they are.

I wouldn't put a champion spark plug in my weedeater.</TD></TR></TABLE>

i would buy them if someone around here carried NGK's the only place is my work but i am only their 1 day a week because of college and he needed something in their besides those so i just bought the cheapest ones that would work knowing they will be junk soon.

 

but are u sure their is no oil comsumption ?
Also maybe do a comp and leakdown to see if its sealing correctly. To eliminate some of the stuff that autolite page said.

How do you have any ideas on is the car is getting the proper mixture ? Maybe check fuel pressure and if it holds it also.

Theres seriously so many things, i say do those tests and maybe it will lead you somewhere and if not it will atleast eliminate some things.

 

Herpies - It affects everyone.

 

It almost looks some sort of oxidation. Like lime and calcium buildup. But how something like that would happen is unknown to me. Just a thought. don't flame me too bad guys :-P

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lude98SH &raquo;</TD></TR><TR><TD CLASS="quote">but are u sure their is no oil comsumption ?
Also maybe do a comp and leakdown to see if its sealing correctly. To eliminate some of the stuff that autolite page said.

How do you have any ideas on is the car is getting the proper mixture ? Maybe check fuel pressure and if it holds it also.

Theres seriously so many things, i say do those tests and maybe it will lead you somewhere and if not it will atleast eliminate some things.

</TD></TR></TABLE>

i am pretty sure their is no oil consumption...it leaks oil so i cant tell for sure until that is fixed. the oil drops but slowly and it looks like most of it from how much is gone and the size of the spots on the floor that most of it is drained out but again i cant tell for sure until that stops

the compression is 210 across...

how can i tell for sure if it is? besides testing fuel pressure?

but ya im just trying one thing at a time as their is so much that it could be. ill let you guys know on what i try and what solves it if i ever do