I removed my engine this morning due to a broken crankshaft !!! More on that later. I see this tar like substance in my intake runners of my heads? I have been using E85 in this Buick for just over a year, anyone seen this before? The car did sit for 3 months during winter. I'm assuming this has to be a by product of E85? Thanks Doug....
E85 goooo?
- Thread starter seeya v6
- Start date
turbo nasty
Turbo Dojo / MNTR
- Joined
- Jul 19, 2001
I just did work on a c6 vette with heads cam intintake running e85 and had a cracked port weeping coolant (aggressive LPE port job) When the injectors were pulled the ends of 7 were covered in this exact same tar crud goo. It's the nature of the beast with e85 IMO
That is from the oil soaking up the ethanol. You need to change oil more often. I suggest that you find and oil that is E85 friendly. Stay away from oil like Brad Penn, cause it will soak up the ethanol.
TURBOPOWERED68
David
- Joined
- Jan 31, 2006
ohh boy
- Joined
- May 26, 2001
Just a comment about using a diesel oil especially in a turbo engine, it contains lots more detergent than regular oil and it may be washing cylinder wall crud into the crankcase which can make its way into the intake in the form of vapor if you are using a PCV?
Rotella also does not have as much anti-foaming additive as regular oil, and my diesel usually is never over 3000 RPM, and usually at 2200 RPM.
Glad you posted your info, and I would be interested in your location/climate conditions?
We have over 3 years experience with many e-85 cars locally, both turbo and carbed, and never seen what you have experienced, and some have been apart during this period.
Rafs-T-Type
Not so Senior Member
- Joined
- Mar 8, 2009
I have read theories that the sludge comes from old diesel tanks being converted to E-85 ...as in the in ground tanks that you pump out of.
TT/Ameasap
The White Blur
- Joined
- Jan 31, 2002
It wouldn't be there regardless had you sprayed alky too. Something to think about.
- Joined
- May 28, 2001
If it was coming thru the fuel system, it would be in the inj filter baskets.
What do they look like?
What do they look like?
grey racer
livin the dream
- Joined
- Mar 27, 2011
My runners had brown gooo near the intake valves on all 6 cyl. Also had it on the tips of the injectors. I was on e85 for about 3 months ( 800 miles ).
Buddy of mine who lives about 50 miles away also had brown gooo in different parts of his motor.
I went back to 93 octane....can't deal with the guessing...
Unfortunately, I've heard some stories about the quality of the fuel. Don't know what's bs and what's not...
Buddy of mine who lives about 50 miles away also had brown gooo in different parts of his motor.
I went back to 93 octane....can't deal with the guessing...
Unfortunately, I've heard some stories about the quality of the fuel. Don't know what's bs and what's not...
The sludge that you are all seeing is from the oil soaking of E85. This will happen unless you run a oil friendly of E85 and the correct A/F ratio. And to back that..... That is why some oil companies will state not to you their oil with E-85. Brad Penn is one of them.
Rafs-T-Type
Not so Senior Member
- Joined
- Mar 8, 2009
How about filling us in on the correct A/F and oil?
The intake has a little goo in the runners, the injectors are clean from what I can see. I agree it's an oil issue, as far as A/F ratio it's very lean on cruise,14.7 idle around 13.0 and wot is 10.8..I need to continue using E85,should I remove the PVC and what oil brand would you recommend?
