smoking atand during vtec only!!!!

[*EFilliated*]

if it was excessive blow by he would have seen it in his compression numbers and leak down numbers also. due to the fact that he stated the head has been used for years i would look more towards the seals that have never been touched.

Explain your theory on this one please?

His isn't smoking at idle nor low rpms ,nor at first start up. So valve stem seals will continue to leak not only at high rpms ... When he is at high rpms and then it starts to smoke that is when he is at MAX pressure causing blow by from the rings .

[Tech5]

if it was excessive blow by he would have seen it in his compression numbers and leak down numbers also. due to the fact that he stated the head has been used for years i would look more towards the seals that have never been touched.

Compression test will test fine as it's only under a load at high rpms . USED head don't mean nothing .

[*EFilliated*]

he would have seen it in the leak down test if its the rings period. he also stated that he has used the head for years on other motors meaning he has beat the shit out of his motor for years u think a little seal is gonna hold up forever with his kinda driving. dought it

Compression test will test fine as it's only under a load at high rpms . USED head don't mean nothing .

[Tech5]

he would have seen it in the leak down test if its the rings period. he also stated that he has used the head for years on other motors meaning he has beat the shit out of his motor for years u think a little seal is gonna hold up forever with his kinda driving. dought it

Valve seals will not just ONLY leak at high rpms ...Valve seals will leak at all times , mainly at start up , idle , and if they're bad enough they will at any rpm NOT just HIGH RPMS

HIGH RPMS smoking only is RINGS Period

[Tech5]

to clear one more thing we are talking about BLUE smoke right?

Could it be white or black smoke???

running rich or even you a coolant line hooked up wrong in the intake?

[Vteckidd]

if it was excessive blow by he would have seen it in his compression numbers and leak down numbers also. due to the fact that he stated the head has been used for years i would look more towards the seals that have never been touched.

again not exactly. Compression tests only test the TOP RING and even with a 20-24 gap you will get REALLY good numbers , doesnt mean it wont burn oil. Leak down GENERALLY will tell you if the valve guides are bad, but no always.

Its the oil control rings and the gap on his rings i almost guarantee it. Prob wouldnt hurt to do valve stem seals either, but i bet that is NOT the contributing factor

[*EFilliated*]

True, I just added my opinion. And was wrong. Life goes on

again not exactly. Compression tests only test the TOP RING and even with a 20-24 gap you will get REALLY good numbers , doesnt mean it wont burn oil. Leak down GENERALLY will tell you if the valve guides are bad, but no always.

Its the oil control rings and the gap on his rings i almost guarantee it. Prob wouldnt hurt to do valve stem seals either, but i bet that is NOT the contributing factor