So the other day I was driving and I noticed that at high rpm's(5000-6800) blue smoke was coming from my exaust. Now that should mean I either have bad valve seals or worn piston rings right? It seems to me that I haven't lost any considerable amount of hp from this. Is there an additive that can solve the problem early, or should I do something else? Have not done compression tests yet. just visual. Thanks

 

yea if it were me, i would probably feel like im fu@@ed. I would go over to a pep boys or autozone type place, and buy an oil additive called Restore. Go from there, see if that helps. Also maybe keep trying lots of Fuel System cleaners, and injector cleaners. Stuff that says it removes carbon deposits and stuff. Use all the stuff for two or three tanks and go from there. If all that doesnt help, then you might want to try compression tests, then rip it apart. start small, then go big..

 

Any more suggestions?

 

blue smoke at idle = valve seals , blue smoke at high rpms = rings
you can try the additives, but id plan for worst case scenario, seeing that carbon deposits burn black

 

theres a small chance your pcv valve is clogged, it can give off blue smoke if it is but usually only a small puff at high rpms. Might want to replace that if it hasnt in a while.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4DooRGiSzer &raquo;</TD></TR><TR><TD CLASS="quote">yea if it were me, i would probably feel like im fu@@ed. I would go over to a pep boys or autozone type place, and buy an oil additive called Restore. </TD></TR></TABLE>

You've been watching too much TV. Additives wont 'fix' worn rings/seals

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Go from there, see if that helps. Also maybe keep trying lots of Fuel System cleaners, and injector cleaners. Stuff that says it removes carbon deposits and stuff. Use all the stuff for two or three tanks and go from there.</TD></TR></TABLE>

Carbon deposits has nothing to do w/ burning oil. All motors have carbon deposits in them.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote"> If all that doesnt help, then you might want to try compression tests</TD></TR></TABLE>

First logical thing i've heard yet.

The bottom line is, that if the car is running fine just keep an eye on hte oil level and top off as neccessary. If the compression is way down or its burning *alot* of oil, then think about a rebuild. Adding oil is cheaper than rebuilding the motor.

 

If your oil is way dirty, it may cause blue smoke. Otherwise, just see if it's consuming oil. If it dosen't use lots of oil yet, it's more of an annoyance.

I think it's just because Honda simply uses light duty piston rings in their motors. Gotta do something to keep cost down and fuel economy up.

 

i changed the pcv valve on my teg and it got rid of the little puffs of blue smoke. also, try a heavier oil. instead of 5w, try 10w.

 

I was low on oil(qrt and 1/2) and added some today and it seems that it isn't smoking really... I have an oil leak and it comes from the bottom left cam seal. I'm going to try to seal it better or just get a new cam seal. based on this info what do you think?

 

get a new cam seal.

add oil as needed.

 

finger your exhaust tip (i know--hehe) and see how much oil if any is in it. then you will know how much you are burning. if the blue smoke comes at high rmps, then stay at low rpms until the prob. is fixed. what oil do you use? how many miles ont he car?

 

I switched to 10w 40 to reduce the burning of oil. The odometer reads 166,000 miles, but the motor was rebuilt about 50,000 miles ago. I temp. fixed the cam seal with some gasket maker. I know it won't last but I'll get a cam seal as soon as I can. thanks for all your input.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by King_j &raquo;</TD></TR><TR><TD CLASS="quote">finger your exhaust tip (i know--hehe) and see how much oil if any is in it. then you will know how much you are burning. if the blue smoke comes at high rmps, then stay at low rpms until the prob. is fixed. what oil do you use? how many miles ont he car?</TD></TR></TABLE>

The residue inside the muffler tip should be dry, black and powdery. If it's greasy and hard to get off your finger, chances are you're blowing some oil.

definitely don't run it low on oil.

 

it's not greasy, it's just like you said it should be: dry, black and powdery, so I really don't know. It seems it only smoked while I was low on oil.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mech &raquo;</TD></TR><TR><TD CLASS="quote">I switched to 10w 40 to reduce the burning of oil</TD></TR></TABLE>

Go back to the recommended weight.

Nearly all hondas will burn some oil.

 

is going from 10w 30 to 10w 40 really going to hurt me bad enough that I should switch back to 10w 30? Also why does a honda smoke when oil is low?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mech &raquo;</TD></TR><TR><TD CLASS="quote">is going from 10w 30 to 10w 40 really going to hurt me bad enough that I should switch back to 10w 30? Also why does a honda smoke when oil is low?</TD></TR></TABLE>

Stick w/ the recommended 5W-30