help.. slight blue smoke from 5L ..

[jim898]

hey all i have a ss its 5 spd, v8 with a 5psi blower,

Everytime I step on it and when the boost kicks in a patch of blue smoke comes out of the exhaust (between a small to medium amount).

i know the engine is running very rich on fuel but that would be blowing black smoke right? I have an idea that the rings are on there way, any ideas?

i do know this week sometime ill be hitting the mechanics door first thing.


Any other ideas?
Hope to get some comments. What could i look at before taking it to the mechanic? Or any other ways to tell if its the rings, engine or other?

[Morganv8]

might be the rings or valve guide seals. Probably need a head job done to it... freshen it all up

[VTSSDUDE]

Well it could be that because you are running that much petrol in, it could be mixing the oil up from the cylinder walls and burning it off. Causing the blue smoke. Best thing is to take it to a mechanic and do a compression test. This will tell you if you have compression loss.

[jim898]

Well it could be that because you are running that much petrol in, it could be mixing the oil up from the cylinder walls and burning it off. Causing the blue smoke. Best thing is to take it to a mechanic and do a compression test. This will tell you if you have compression loss.

thanks, if it is a compression loss how is this fixed? how much do these usually cost to get repaired? Never done it before but would like to prepare funds for it

And as for the valve guide seals/rings yeah thats probably what i was thinking. Hope i get it all done this week. thanks again open for more ideas.

anyone come into this problem before also?

[VTSSDUDE]

If it is valve stem seals, the blue smoke will only occur at startup or it would be really bad after a first thing in morning start.
Whilst driving you won't get any blue smoke.
If you are getting smoke whilst driving then I will say it's your rings.
But you have to almost pull the heads off to see if it's just the rings that are worn or you could have a scored bore.
When you do the compression test, take note of the spark plugs coming out. Usually the cylinder that is doing the oil burning will have it's spark plug fouled up. Not always every cylinder and piston is at fault.
So you could do a cheap bodgy job of just replaing the rings of the cylinder that is playing up providing you don't have any score marks on the cylinder walls.
Or to do it properly, you would probably get away with replacing all the rings. But if your bores are scored, you may need to bore your cylinders out. Then you will need to buy over sized pistons and rings to suit. The $$$ start to rise if this happens.
To make the job even better, check the condition of the main and bottem end bearins, I would go that bit extra $$ and replace them as you need to take them out to take the pistons out anyway.
But you shouldn't have to spend any more then around the $3000 mark. Just for rings and no cylinder boring probably just a ring kit. Assuming around $400 I think, I am guessing that one.
But either way, I would do the bearings as well. Then you have done all the major things that can go wrong with your bottom end.

[jim898]

thanks for that dude. well yeah im not sure what i'll do yet mite get the comp test going.

well i took it to the mechanic today and it was funny,

2 of them didnt look at the car coz they just preferred a full rebuild, they sounded like money traps telling me 6500 for a full engnie build. fark that.

the 3rd mechanic checked it out and i gave it a good thrash on neutral and it just blew black smkoe a tad, telling me it was running rich. which was wierd.. he did it too and i saw it was black, but im pretty sure it looked blue when i was driving.

he did mention also that if its not blowing blue while idling, or normal, or when you start her up its fine dont even worry which i dont get at all anyway.

also mentioned that it is quite normal for most v8's that when you put them under big load to blow a little blue smoke gettin mixed with the black?

any opinions on this mechanics comments?

[samuels]

hey all i have a ss its 5 spd, v8 with a 5psi blower,

Everytime I step on it and when the boost kicks in a patch of blue smoke comes out of the exhaust (between a small to medium amount).

i know the engine is running very rich on fuel but that would be blowing black smoke right? I have an idea that the rings are on there way, any ideas?

i do know this week sometime ill be hitting the mechanics door first thing.


Any other ideas?
Hope to get some comments. What could i look at before taking it to the mechanic? Or any other ways to tell if its the rings, engine or other?

sounds silly,your blower isn't sucking oil in thru your valley is it?forcing oil into bore....easiest way is compression test it,if any is down on compression,squirt a small amount of oil into the bore with the low reading,give it a quick whirr over to even out the oil,re do the compression test on that cylinder,if the reading is higher.....it's oil rings.

[samuels]

thanks for that dude. well yeah im not sure what i'll do yet mite get the comp test going.

well i took it to the mechanic today and it was funny,

2 of them didnt look at the car coz they just preferred a full rebuild, they sounded like money traps telling me 6500 for a full engnie build. fark that.

the 3rd mechanic checked it out and i gave it a good thrash on neutral and it just blew black smkoe a tad, telling me it was running rich. which was wierd.. he did it too and i saw it was black, but im pretty sure it looked blue when i was driving.

he did mention also that if its not blowing blue while idling, or normal, or when you start her up its fine dont even worry which i dont get at all anyway.

also mentioned that it is quite normal for most v8's that when you put them under big load to blow a little blue smoke gettin mixed with the black?

any opinions on this mechanics comments?

you can buy and AC delco exchange motor for $2350.00 + labour if you get a mechanic to put it in.most mechanics charge $45.00 + per hour.
any mechanic will tell you not to worry if it's not blowing smoking upon start up or idling,this is because they can't find the fault,and say that phrase"don't worry bout it yet" thats because if you don't worry about it,you are causing more damage,therefore more money for the mechanic.when your oil rings are worn,they will blow blue smoke any time,start up,idling and normal driving.
as for normal for V8"s to blow a li'l blue smoke,not it's not normal for later model cars,same goes for black smoke,but it sounds like you have some work done on your's,you need to get some adjustments done on your ECM's internals to counter for alny modifications done to your motor.