Dirt and oil...IN THE HEAD PORTS?
Dirt and oil...IN THE HEAD PORTS? Just about in the middle of doing my LS6 swap, and when I pulled off the stock manifold, I see this:
Is this sort of thing normal? I'm going to plug the ports with paper towels and clean everything up, but I can't help but worry some of that junk has already worked it's way into the chambers and perhaps scored the walls. Also sorta worried about the excess oil in there...even the bottom of the manifold bolts were oily.
Is this sort of thing normal? I'm going to plug the ports with paper towels and clean everything up, but I can't help but worry some of that junk has already worked it's way into the chambers and perhaps scored the walls. Also sorta worried about the excess oil in there...even the bottom of the manifold bolts were oily.
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From: Fredericksburg, VA
I had exactly the same stuff in my intake ports when I did my 90/90 swap last weekend. Except mine was 10 times worse. It totally coated the entire inside of the intake runner. It was pretty thick, too. This pic isn't the best, but you can see that the ports are completely black with sludge:
I stood the LS6 intake I took off up on the TB over night, and in the morning it was sitting in a pool of oil. Needless to say I removed all the PCV crap and threw it in the trash. I'm glad I've got heads on the way, because my intake runners look REAL nasty...
I stood the LS6 intake I took off up on the TB over night, and in the morning it was sitting in a pool of oil. Needless to say I removed all the PCV crap and threw it in the trash. I'm glad I've got heads on the way, because my intake runners look REAL nasty...
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Every engine is different. I had to take off the intake one time to check out a knock sensor and my ports were pretty clean except for a little risidue near the beginning of the port that wiped off.
Silverhawk, that's one filthy engine man. Get some cleaner and clean her up!
Silverhawk, that's one filthy engine man. Get some cleaner and clean her up!
Last edited by Third Gear; Jan 31, 2006 at 10:31 PM.
I had some dirt and oil built up around the intake ports when I swapped the LS6 to FAST 90, but it wasn't gunked up that bad. Plug the ports with a paper towel, use a shop vac to suck the gunk up while scraping at it lightly with something flat, preferably non-metal (plastic). Works good. Clean as much of it up as you can.
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From: Fredericksburg, VA
Originally Posted by Third Gear
Every engine is different. I had to take off the intake one time to check out a knock sensor and my ports were pretty clean except for a little risidue near the beginning of the port that wiped off.
Silverhawk, that's one filthy engine man. Get some cleaner and clean her up!
Silverhawk, that's one filthy engine man. Get some cleaner and clean her up!
When I move back to New York in March I'm just going to pay a place to totally detail the car inside and out, because I'm tired of fighting the environment down here.
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From: Fredericksburg, VA
Originally Posted by CRL 01 SS
I had some dirt and oil built up around the intake ports when I swapped the LS6 to FAST 90, but it wasn't gunked up that bad. Plug the ports with a paper towel, use a shop vac to suck the gunk up while scraping at it lightly with something flat, preferably non-metal (plastic). Works good. Clean as much of it up as you can.
I bought my 5.3 heads used and they had that gunk in the intake runners bad. Spent a good while cleaning all that crap out before I could get to work on porting them
One good thing about it was that the gunk was thick everywhere except in a small line of clean in the same spot in every runner. Now I know exactly where the air flow was the fastest through them. Gives me a good reference on where to port
One good thing about it was that the gunk was thick everywhere except in a small line of clean in the same spot in every runner. Now I know exactly where the air flow was the fastest through them. Gives me a good reference on where to port
Originally Posted by SUX2BU
99% of cars i work on look like that.
Throw the PCV in the trach and that solves the intake runners being nast problem.
Throw the PCV in the trach and that solves the intake runners being nast problem.
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Originally Posted by Silverhawk_02TA
I had exactly the same stuff in my intake ports when I did my 90/90 swap last weekend. Except mine was 10 times worse. It totally coated the entire inside of the intake runner. It was pretty thick, too. This pic isn't the best, but you can see that the ports are completely black with sludge:
I stood the LS6 intake I took off up on the TB over night, and in the morning it was sitting in a pool of oil. Needless to say I removed all the PCV crap and threw it in the trash. I'm glad I've got heads on the way, because my intake runners look REAL nasty...
I stood the LS6 intake I took off up on the TB over night, and in the morning it was sitting in a pool of oil. Needless to say I removed all the PCV crap and threw it in the trash. I'm glad I've got heads on the way, because my intake runners look REAL nasty...
Your whole engine bay looks REAL nasty...
It's not 'just' your intake runners... IMO that much sludge and oil is NOT normal... At least, not normal in MY garage.
Sorry, I just had to say it...
I would be embarassed to pop my hood and show some crap like that to my friends... I can hear them 'goofing' on me now!
James
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From: Fredericksburg, VA
Originally Posted by BigDaddyZ28
Your whole engine bay looks REAL nasty... It's not 'just' your intake runners...
IMO that much sludge and oil is NOT normal... At least, not normal in MY garage.
Sorry, I just had to say it...
I would be embarassed to pop my hood and show some crap like that to my friends... I can hear them 'goofing' on me now!
James
It's not 'just' your intake runners... IMO that much sludge and oil is NOT normal... At least, not normal in MY garage.
Sorry, I just had to say it...
I would be embarassed to pop my hood and show some crap like that to my friends... I can hear them 'goofing' on me now!
James
As far as the sludge goes, it's alot, but not abnormal for a PCV system that sucks up a bunch of oil into the intake. I've done head swaps on other LS1's that have looked just as bad.
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Originally Posted by Silverhawk_02TA
Again, see my post above about the environment I live in. That engine bay was cleaned a couple weeks before. It's simply an ineviteable fact of the area in which I live. I'm not going to completely detail my engine every 2 weeks.
As far as the sludge goes, it's alot, but not abnormal for a PCV system that sucks up a bunch of oil into the intake. I've done head swaps on other LS1's that have looked just as bad.
As far as the sludge goes, it's alot, but not abnormal for a PCV system that sucks up a bunch of oil into the intake. I've done head swaps on other LS1's that have looked just as bad.
I have the Helms manual for my '01 and I was reading the section about the PVC system on our cars. There is a full page at the beginning of the section that talks about how our PCV is designed to prevent the oil from getting in to the intake system... They make it sound like it can't happen.
I guess the reality of it is a little different from that though.
James
Originally Posted by Element
So can I just pull the hose off the metal elbow on the valve cover, plug it with a small rubber cap, and plug the elbow on the TB where the PCV line connected to?
