Technical Anyone ever had pcv issues?

Got a 27 ford rpu, powered by a 2.3 ford overhead cam ranger (pinto)engine. Lately, I've had oil burning issues at hiway speeds, something like this, pull out to p*** a slower car (yep, there are slower cars), shift down a gear, huge heavy pinging from the engine, huge clouds of mosquito control smoke, shift back up, foot out of the throttle, smoke, pinging gone, car runs good. Scoot along, car runs like a top,, low speed cruising, car runs great, no oil burning, weird.
Till yesterday, two hundred miles into a trip to a show, checked oil at a gas station, car on an incline, like a dummy added a quart of oil cause the stick showed low, and soon as we got back on the road.....pinging and heavy oil smoke. LOTS of smoke, pinging so loud the head was gonna let go. Called home, daughter loaded up the trailer and saved her old mans ***.
Today, get on the net, look up pcv valve issues, on ford 2.3 engines, the pcv is down under the intake where the cam would be if it were in the block, pull it all apart, sure as ****, oil all through the hose leading to the intake, past the pcv valve, which is stuck open. So....under hard throttle and high engine speeds, enough vac*** to pull excess oil from engine past stuck pcv into the intake and try to turn the world a new shade of blue. Under cruising speed, low rpm, not enough vac*** to cause issues, car ran great.
Tomorrow, a new valve goes in, should be problem solved, I hope.......

 

PCV valves come in many different vac specs/rates.. A modified engine will take a different valve than the same in a stocker

 

This was true long ago, now if you get in the catalog listings online, ther are many diferent engines from the same family of cars ( Chev. for example) which obviously came with different pcv valves because of vastly different power, cid and use. Now they all have the same part number for a replacement if the physical exterior is the same. Like a 2bbl 283 with the same pcv valve as a hipo 454. Right at the minute I don't recall the name but there is a company marketing a fully adjustable specially designed pcv valve. I'm sure a search will find it.

 

Maybe M/E Wagner?
http://www.powerperformancenews.com/tech-articles/an-adjustable-pcv-valve-for-the-street/

 

post pics of motor - maybe by seeing it will help us help you - checked/replaced spark plugs - what did they look like? sure that timing, etc is correct? possibly go up to a higher octane rating on gas that you have been using.

 

^^^^^^^^^^^^ Yes that's the one I was thinking of M E Wagner. Thx.

 

Using premium gas, timing spot on, absolutely nothing wrong with the engine, zero blowby, car runs like a champ. Took me awhile to figure out how pcv system worked on the car, usually the pcv is on the valve cover, but on these engines, it's down, right above the oil pan, that's why it will pick up oil if the crankcase is too full.

 

I have run quite a few Pinto Motors over the years - everything from a 300HP 2.8 stroker in my off road race truck to the 160-180HP version currently in a 29 RPU to dead stockers. All have had the standard location PCV valve and I've never had a problem with them ****ing oil as you describe. Something is not quite right - are you using the factory oil seperator?

As for :Using premium gas, timing spot on, absolutely nothing wrong with the engine, zero blowby, car runs like a champ" - Something is not right if you are getting heavy pinging on acceleration!
and this is very contradictory "Lately, I've had oil burning issues at hiway speeds, something like this, pull out to p*** a slower car (yep, there are slower cars), shift down a gear, huge heavy pinging from the engine, huge clouds of mosquito control smoke, shift back up, foot out of the throttle, smoke, pinging gone, car runs good. Car runs like a top,, low speed cruising, car runs great, no oil burning, weird."

Sounds like two issues - one either jetting or timing or NOT right for your engine combo (You don't state if it is stock or modified) and two you have an oil issue with either the breather, the valve cover venting, or the wrong amount of oil

 

The opposite is true, under hard throttle vacuum drops, under a light load (cruising speed) vacuum is high.

But, PCV is designed to shut off flow when vacuum gets too high, or when there is pressure (i.e. during a back fire event). At idle, when vacuum is the highest, the pcv is basically closed.

 

Oil contamination reduces octane rating of a fuel, so the addition of lots of oil will cause lots of reduction in octane. I think once you fix the oil pumping issue the detonation problem will end.

As hotroddon said, do you have the proper oil separator(s) in the system? I am not familiar with the Ford 2.3, but I had a similar problem with an off topic early Corolla 1600 made up from two engines. There was a change in the PCV system over the years and I ended up with constant smoking until a good mechanic who knew the engines pointed out where I mismatched the parts of the two systems.

 

Do you have electronic ignition? I had a 2.3 mustang and the spout connector fell out and it did just what your engine is doing.

Another thing to check is do you have the right dip stick? I once drained 11qts of oil out of a sbc because the dipstick was wrong and the dipstick who owned the car kept topping it up.


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Fixed, new pcv valve installed, everything cleaned of coated oil, Same gas in the tank, headed for the hiway, gonna go make it happen. So....it's all hiway here, made sure the oil level is correct, ran the bag off it for twenty miles, no issues, turned around, used all 100 horses to get her up to speed, stuffed it into second and wailed on it for another couple miles, and it runs like a top, no issues.
Here's my thoughts, cause it's all I got. Pcv valve looked to be stuck open, I know oil level was a litre too high, stock setup for pcv system on the motor, I think the oil was being beaten by the crank, frothing enough to be picked up and sent to the carb, causing oil smoke like a mother. Now the engine idles 100 rpm lower, is more responsive, and runs like it should with no other changes made. Just a pcv valve change, an 8 buck fix.
Call ******** if you like, but that appears to be the fix.

 

Here it is with my 36.

 

I have the Wagner and am happy with it. Their support is awesome too. Worth every penny.

(My awesome Gordito-Block Chevy. Don't get too close or it might just **** you in.)

 

I've been tempted, but the price has kept me from pulling the trigger.

PCV's are cheap enough, I've thought about buying a few of them and opening them up and trying to modify one myself, basically for more evacuation at idle and during periods of low vacuum.