The victim. 69 Barracuda with freshly rebuilt 360. Less than 250 miles/
Oil be darn
- Thread starter 69conv
- Start date
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The evidence. Oil filled exhaust.
So I ran a borescope down cylinder 1 and 2.
So I ran a borescope down cylinder 1 and 2.
Well that's gotta come apart.
Exhibit a. Either a little rich or just oil in the chamber.
So I ran the scope down the carb into the intake to eliminate the pcv.
So I ran the scope down the carb into the intake to eliminate the pcv.
So the question is is this just normal oil on a fairly freshly rebuilt engine? Is oil being sucked in from under the intake? Engine runs strong. Passenger compartment fills with oil smoke at 50 mph plus. What say you?
Aftermarket intake new to your build? Did you check fitment clearances?
PRH
Well-Known Member
Imo…….. nope.
Air gap intake new to the build. Was going thru my records from when the engine work was done in 2014 and I dont see where the heads were cut.
Block was bored and honed, new K B pistons and rings, heads received 3 angle valve job, stem seals and deep bowl blending.
Paid to have it professionally assembled.
i wouldn't say it's normal on a fresh build.
however, you say "fairly fresh" but then mention it was done in 2014? did you have it done and it's just been sitting this whole time?
if that's the case there's any number of possibilities: dried out gaskets, stuck rings, some funk got in there and yucked everybody's yum... and the list goes on and on.
The one with the puddle was the worst but I did 1,3 and 4. All show evidence of a bunch of oil in the cylinders.
So u thinkin run some seafoam and drive it more?
jimjimjimmy
lobsterman
What type of rings were used ?
moly
jimjimjimmy
lobsterman
I bought a professional built engine one time and it burned a quart per 100 miles , had oil on the pistons like yours after a tear down it was found that 0.030 over rings were used on the 0.040 Pistons and bore . I hope this don't happen to you .
Thanks for the heads up. Considering a compression test but the rings look so wet it may not be conclusive. Motor doesnt run like there is anything wrong. Burns those big tires to the point I have to feather it through first, makes a nice hit into second and then it time to let up on the street.
The angles on intake may have been misscut by edelbrock. Wrong angle or intake wider at one end than the other. You need to check it before installing the intake. Hughes engines had a tech article on it, but they took it off their website.
I'm kinda leaning toward the intake angle too. I dont know how to check the angle, maybe plasigauge or clay to check clearances with a light torque.
I did retorque the intake but nothing seem out of spec.
PRH
Well-Known Member
Unless the pcv baffle is oem or just like oem, I’d pull the pcv valve and put another breather in the hole.
Drive it and see what happens.
I like trying the simple stuff first.
Drive it and see what happens.
I like trying the simple stuff first.
The above video give you an idea how it's done.
Never considered solder, awesome recommendation. Thank my friend!!
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