LT header install and now......

[00WS602GT]

I have an 02 GT which I put Mac LT headers and and off road h-pipe on about a month ago. Well ever since the install it burns a little oil (blue smoke out of the tail pipe). It runs fine, sounds good, and I have checked the oil and can't see on the stick where it's getting any lower. Is this something that is common or are there any sugestions as to what it could be?

Thanks
Jason

 

[stangman]

are you absolutely sure it's blue smoke? reason being is that after you put LT's on, you run a little rich (black smoke). the o2's are moved farther down, & the o2's have to be a certain temp to work properly, so the temp difference alone you can run more rich, creating the smoke.

 

[nickthegenius]

Ah, the classic "My EGR sucked some of the slag off of my Mac LTs suck-ass welds and sent it into the intake and my cylinder walls are scored"-problem

 

[GinoGT]

Ah, the classic "My EGR sucked some of the slag off of my Mac LTs suck-ass welds and sent it into the intake and my cylinder walls are scored"-problem

Wouldn't be surprised.

MAC quality isn't quality. As far as I'm concerned, there stuff sucks.

 

[nickthegenius]

Its a fairly well-documented (by forum standards) problem on the 4v cars and there have been a handful of people with the same problems on the GTs. Some people have gone as far as to block the EGR temporarily after installing Macs just to insure that any slag that might have come loose would go out the tailpipes instead of getting sucked out of the primaries by the EGR valve.

 

[maddogg545]

My EGR sucked some of the slag off of my Mac LTs suck-ass welds and sent it into the intake and my cylinder walls are scored"-problem

I have mac LTs on my GT. How would you know if your cylinder walls are scored? Besides the blue smoke coming out of your tailpipes? Will the car stop running one day because of this?

 

[nickthegenius]

I guess at some point it might, but the scoring on the walls will usually just cause increased oil consumption. There's really no way to be 100% sure that's what it is without pulling the heads and looking. Not sure if you could see it with a boroscope (sp?) or not.

 

[00WS602GT]

Its a fairly well-documented (by forum standards) problem on the 4v cars and there have been a handful of people with the same problems on the GTs. Some people have gone as far as to block the EGR temporarily after installing Macs just to insure that any slag that might have come loose would go out the tailpipes instead of getting sucked out of the primaries by the EGR valve.

I'm possitive it's blue smoke. We blocked off the EGR tube when we installed the headers. I know macs are not the best of the best but one of my friends had bought them for his GT and before they came in he traded his car for a Mach 1. I bought them brand new off him for a pretty good price.