Aidan's loose oily bunghole actually runs a track lap
#9662
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Before I do valve stem seals again I'm going to do a full hot leakdown test, and disconnect my pcv line for an extended drive. I disconnected it for a short time in the garage, but want to see if I'm sucking oil in through that. Also pull intercooler pipes to check for oil. If leakdown is good, and I don't see any other issues then I will do new valve seals. Using the straw method bahurd used when he did his to protect the seals from the stems.
#9664
Before I do valve stem seals again I'm going to do a full hot leakdown test, and disconnect my pcv line for an extended drive. I disconnected it for a short time in the garage, but want to see if I'm sucking oil in through that. Also pull intercooler pipes to check for oil. If leakdown is good, and I don't see any other issues then I will do new valve seals. Using the straw method bahurd used when he did his to protect the seals from the stems.
To rule out PCV related is easy. block passengers side, and just hook a hose to the drivers side that does not go to the air intake in any way. This is what I run, it's safe, simple, and guarantees oil from crankcase doesnt' get sucked into engine.
Leakdown would be good too check, but I wouldn't tear an engine down without trying what I wrote above. I find it hard to believe you damaged the new valve stem seals on assembly, that's not a common thing. Hell I don't know anybody in real life that has ever had that problem when building an engine.
#9666
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I have never heard of anyone, ever having issues tearing seals. If they were that fragile, they wouldn't last very damn long.
#9670
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Definitely not sure. I pulled the intake pcv line. Going to go on a test drive now. Intercooler piping is all clean. After the drive I'll do a leakdown.
#9674
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Put another 40 miles on the car with no pcv valve connected. So that's not it. Also got my Det cans hooked up finally.
I have a total of 50 valve stem seals en route to me. Enough to do this 3 times. 3 day autox next weekend. So I'll pull the motor apart tomorrow. Valve stem seals in Tuesday. Test and tune.
I have a total of 50 valve stem seals en route to me. Enough to do this 3 times. 3 day autox next weekend. So I'll pull the motor apart tomorrow. Valve stem seals in Tuesday. Test and tune.
#9676
Does your leak down tester not go to 100? Or does your compressor not have enough guts?
I've seen people do 50 psi leak down tests, and 100psi. Never seen anyone do 90psi, at least not on purpose.
The maths...they are much easier if you go all ze way to 100.
Regardless, those results look good.
I've seen people do 50 psi leak down tests, and 100psi. Never seen anyone do 90psi, at least not on purpose.
The maths...they are much easier if you go all ze way to 100.
Regardless, those results look good.
#9677
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My regulator is busted. Only goes to 100psi. And the instructions say to make sure your air source is 10psi above your test pressure. It also has a chart for 80, 90, 100psi tests.
#9679
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Another "issue" I'm working with is a really odd VE spike right around 5400 and 50-90kpa.
When I hit that spot without the added VE I go very lean.
Things I've checked:
Fuel pressure stays constant
If PW doesn't increase then it goes lean
Things I'm going to check next:
Disable VICS actuation
With the current VE table everything works pretty well. AFRs stay reasonable through that region, PW just go up by a lot.
When I hit that spot without the added VE I go very lean.
Things I've checked:
Fuel pressure stays constant
If PW doesn't increase then it goes lean
Things I'm going to check next:
Disable VICS actuation
With the current VE table everything works pretty well. AFRs stay reasonable through that region, PW just go up by a lot.
#9680
Another "issue" I'm working with is a really odd VE spike right around 5400 and 50-90kpa.
When I hit that spot without the added VE I go very lean.
Things I've checked:
Fuel pressure stays constant
If PW doesn't increase then it goes lean
Things I'm going to check next:
Disable VICS actuation
With the current VE table everything works pretty well. AFRs stay reasonable through that region, PW just go up by a lot.
When I hit that spot without the added VE I go very lean.
Things I've checked:
Fuel pressure stays constant
If PW doesn't increase then it goes lean
Things I'm going to check next:
Disable VICS actuation
With the current VE table everything works pretty well. AFRs stay reasonable through that region, PW just go up by a lot.