smoking, no power

[skate4life]

My friends honda has a D15B2 looking to sell it to another friend but problem:

When you start the car is it seems fine for about 10 seconds then starts blowing light blue smoke that smells burning oil. He says that it is the timing because he says 'it skiped a few teeth". I don't see how timing would make it smoke but the other problem it has is it is totally gutless. NO power. I see how timing would effect that. Any idea what would make it smoke and have no power. I'm thinking rings or valve seals but it happened all of a sudden so not sure.

thanks guys

Mods: Header, Intake, he says "port and pollished"

[Lule]

I'd say valve guide seals over bad rings.

The 10 seconds would be about the amount of time it would take for the oil to fill the head and ooze around the seals and guides. The fuel is mixing with the oil on the backside of the valve and not vaporizing well.

Pull off the air filter to see if the smoking slows or stops and if the engine responds better.

The engine won't run 'a few teeth off,' but it would just one tooth off.

Could be many combinations.

[gloryhog]

Well said....

[Misfit]

i agree, very well put. lol

[skate4life]

thanks for all the help, I'll try to keep my friend from buying this one unless he has a another head or motor lined up.

[JaredKaragen]

odds are: RINGS.

If it's the valve guide seals, it would be mostly at Higher RPMs... (4-5K+)

With Rings, you see a huge loss in power.... so check your cam timing to see if that's what's causing it.


Also, a compression check will give you the info you need to finish the diagnosis!

[zexaccord]

i think most 100K+ D series puff on high shifts

[Dweezil]

My 210K A6 dosen't! wOOt!

[dustin_crxsi]

lol...Its a honda. It'll smoke, but she'll keep running as long as you put oil in her!

[skate4life]

odds are: RINGS.

If it's the valve guide seals, it would be mostly at Higher RPMs... (4-5K+)

With Rings, you see a huge loss in power.... so check your cam timing to see if that's what's causing it.


Also, a compression check will give you the info you need to finish the diagnosis!

so now you think it is rings and not the valve seals? alright this things smokes unbelievably bad so im just gonna assume it needs a rebuild or a new motor. possible find a z6 instead.

[lsturbohatch10]

well if its a b2 then i would replace with an a6 instead. its a little easier and still a great motor

[JaredKaragen]

if it's unbelievable smoke... 85% chance it's the rings.... a compression check will verify this.

[Lule]

I agree that the compression test will help resolve this question.

Huge amounts of smoke would indicate worn/broken rings.

Any period of high manifold vacuum (idle/high RPM) will cause the valve guide seals to leak, but they can only pass so much.

If you have low numbers, squirt a little bit of oil into the cylinders and test the cylinders again. If they come up, most definitely rings.

Also, check that your PCV valve isn't stuck shut. If it's not working, the crankcase blow by can only escape back into the intake, dragging oil with it.

Has this engine been sitting?

[JaredKaragen]

I agree that the compression test will help resolve this question.

Huge amounts of smoke would indicate worn/broken rings.

Any period of high manifold vacuum (idle/high RPM) will cause the valve guide seals to leak, but they can only pass so much.

If you have low numbers, squirt a little bit of oil into the cylinders and test the cylinders again. If they come up, most definitely rings.

Also, check that your PCV valve isn't stuck shut. If it's not working, the crankcase blow by can only escape back into the intake, dragging oil with it.

Has this engine been sitting?

bling bling....

Yeah... have you run any FMU or anything on this car before??? how many miles?
if your gonna re-use anything off this motor when you swap (if) then make sure you check out your injecotrs: If they got clogged up they could have caused this problem. the easiest way to burn rings is to run lean or not enough oil.

[JaredKaragen]

Also, check that your PCV valve isn't stuck shut. If it's not working, the crankcase blow by can only escape back into the intake, dragging oil with it.


it would take some high r's to make enough oil come up through the upper vent to make that much smoke... I doubt it's the pcv.

[skate4life]

problem solved, rings on the first cylinder, it has almost zero compression. when it was running if you took the spark plug wire off there was no difference. Tonight we spend pulling the engine, my friend bought a d16z6 with harness and trying to find a p28

[Lule]

Excellent, glad you found it. So often the poster never says what the result is. Just kind of get left hanging...

[skate4life]

well that pisses me off aswell so i thought i'd do a fallow up. thanks for all the help guys.

[xenocron]

compression and leak down

[JaredKaragen]

when you take the head off tell us if it was the rings =P I gotta hunch....

[skate4life]

his dad took it to the junk yard before we had the chance, what do you think it was. other than rings. looking through the spark plug hole the piston looked to be there in good condition it thats what you thinking

[JaredKaragen]

honestly, if it smokes like a mad monkey, and has no power... you got no compression... so that leaves valves, HG and rings.... and rings are the only thing that would cause lots of smoke at all r's.