Excess Crankcase Pressure

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Not yet, but a buddy just lent me his compression gauge and a Leakdown tester. So I'll be doing those tests tonight and/or tomorrow.

Cool. Keep us posted. If everything's workin like it should, I lean towards maybe a bad oil ring "or somethin".
 
OK, that's a little better, but the rear needs to be a pcv valve, not breather.

After reading more, I assume you have one of those combination breather/pcv valves. Only thing left is make sure it's operating correctly as mentioned. Moving it from the intake was a good start.

Yep it's a combo PCV/breather. I've gone through two of em at this point. I ordered an oem style replacement in the meantime, should be here tomorrow.
 
I've run lots of PCV "cheat" with fuel line. You can getr some idea of the PCV operation at idle, just feel the end with your finger. should feel strong vacuum, and covering it/ uncovering the port with your finger, the plunger in the pcv should suck in with a "pop" You may have some sort of engine problem, like a broken ring "or two"

Gotcha, I'll try this tonight.
 
Look how I worded it. It aids in sealing. It does so because it gives the rings LESS blowby vapor to deal with. Right?
That's not aiding in sealing.
Its just removing pressure...the ring has the same tension and seal it had before.

You're entitled to your opinion.
Live long and prosper.
 
That's not aiding in sealing.
Its just removing pressure...the ring has the same tension and seal it had before.

You're entitled to your opinion.
Live long and prosper.

Peace and long life.
 
How does this happen when you can look into the valve cover and see the camshaft valley? That's about as open as you can get...? I'm baffled....
 
I hope Rudolph is helping navigate this year...cause cyclops santa is gonna need help finding the chimney..Lmao
 
Not yet, but a buddy just lent me his compression gauge and a Leakdown tester. So I'll be doing those tests tonight and/or tomorrow.
Compression test
Pull the plugs
kill the ingition
Wire the throttle wide open
Crank each cylinder for the same amont of time 4-5 crank cycles
 
That article mentions Fred Cooke, I know that guy personally! I met him during his North American 'tour' when he was on holiday here and he basically hopped from house to house of guys in his EFI forum helping them with their tuning or installs in return for a place to crash at night and food for as long as needed. I drove down to Fallbrook to meet him at another guys house and ended up buying him lunch as we all talked about his EFI boards. I still got his board. Very smart guy, but was a dick.
 
Compression test results:
1: 86 psi
2: 110 psi
3: 95 psi
4: 94 psi
5: 80 psi
6: 80 psi

Replaced the trans cooler hose with PCV hose. While idling, there's plenty of vacuum coming from the carb and with the PCV breather removed from the valve cover, there was quite a bit of vapor/air coming from the hole. Took the car for a drive and I'm still getting oil spraying out of the dipstick tube, etc.
 
Compression test results:
1: 86 psi
2: 110 psi
3: 95 psi
4: 94 psi
5: 80 psi
6: 80 psi

Replaced the trans cooler hose with PCV hose. While idling, there's plenty of vacuum coming from the carb and with the PCV breather removed from the valve cover, there was quite a bit of vapor/air coming from the hole. Took the car for a drive and I'm still getting oil spraying out of the dipstick tube, etc.
Bingo
Those numbers are really low.
Good thing is they will probably will have ring sets on sale for black friday
 
The numbers are definitely low, but as I said in my initial post, the car never smoked at all before the intake/carb swap.

While going through the service manual, it occurred to me that I never bothered to check and see how well the regular breather I installed at the front of the valve cover flowed.

Turns out, it was not flowing well at all, in fact I could barely blow or suck through it. So removed some of the foam material in it and opened up the baffle a bit, now it's getting good flow through it. Took the car for a drive and so far it seems as if the problem is fixed. I'll continue to drive the car and report back with any continuing tomfoolery.
 
Compression test results:
1: 86 psi
2: 110 psi
3: 95 psi
4: 94 psi
5: 80 psi
6: 80 psi

Replaced the trans cooler hose with PCV hose. While idling, there's plenty of vacuum coming from the carb and with the PCV breather removed from the valve cover, there was quite a bit of vapor/air coming from the hole. Took the car for a drive and I'm still getting oil spraying out of the dipstick tube, etc.
I bet you have a ridge on them all, the rings/bores are shot.

Id pull it and have it honed to the next size, buy pistons, have them polish the crank, touch up the rods and press the new pistons on... slap it together.
Most slant pistons are weighted for a drop in, 'stock weight'. Yoy could have this all better for about 600 bucks.
 
I bet you have a ridge on them all, the rings/bores are shot.

Id pull it and have it honed to the next size, buy pistons, have them polish the crank, touch up the rods and press the new pistons on... slap it together.
Most slant pistons are weighted for a drop in, 'stock weight'. Yoy could have this all better for about 600 bucks.

Atm your fix is just burning the oil in the cylinders now. You're feeding the blowby into the carb.
 
Maybe your CC is overfilled. If the crank is beating up the oil, yur gonna have problems.
Maybe yur trans is slipping or yur screaming down the road in second gear.
Maybe yur compression test is low because the gauge is lying.
Maybe the numbers are low because the valves need adjusting or the oil got washed off during cranking.
Maybe the numbers are low because you didn't crank long enough to get two consecutive, about same pressure, numbers.
Or maybe the cam is outta time.
Yaknow, I seen a screw-in compression gauge one time that had the wrong type Schroeder valves installed in it, and that was all it took to make a liar out of it.

The point is just because the gauge says your engine has crummy compression, doesn't make it true.
I recommend a second opinion.

Btw;
did you do anything else at or just before the intake swap, other than the swap? Like maybe an oilchange? Cuz I have seen some crappy oils in my life, that smoked pretty bad.
And oil mixed with gas, in the CC will smoke too.
 
The numbers are definitely low, but as I said in my initial post, the car never smoked at all before the intake/carb swap.

While going through the service manual, it occurred to me that I never bothered to check and see how well the regular breather I installed at the front of the valve cover flowed.

Turns out, it was not flowing well at all, in fact I could barely blow or suck through it. So removed some of the foam material in it and opened up the baffle a bit, now it's getting good flow through it. Took the car for a drive and so far it seems as if the problem is fixed. I'll continue to drive the car and report back with any continuing tomfoolery.

Hell yeah! Now yer talkin!
 
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