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Topic Review (Newest First)
08-05-2006 04:07 PM
Jmark Agreed....If you have severe blowby, you have a serious engine problem. Before doing much, make sure the PCV valve is working and the line to the carb/intake is clear and not plugged.

The "Envalve" as been mentioned a few times on here but every time I try their web site, its down. As mentioned, the only cure for blowby is to fix the problem, which is usually bad rings.

Mark

************************************************** ******
Decided to ck the site and its actually working, however only one picture is showing. On the web site, the seller makes claims that are just plain BS!! Case in point.

"FOR EVERY GALLON OF GASOLINE THAT THE ENGINE BURNS, ONE GALLON OF WATER IS PRODUCED. MOST IS EXPELLED VIA THE EXHAUST BUT SOME ENTERS THE CRANKCASE THROUGH LEAKING PISTON RINGS WITH THE BLOWBY."

While this MAY be partially true, i'd like to see some test data to back this up.

"THE EN-VALVE THROUGH ITS DESIGN IS ABLE TO REMOVE MUCH MORE
BLOWBY. IT PRODUCES A PRESET VACUUM IN THE CRANKCASE."


Again, this is plain bull! If the "envalve" sucks MORE air into the intake system, the carb or fuel injection will go lean. If injected, it can be compensated for but on a carb'd engine, you will need to make idle and main jet changes to compensate for the added PCV air volume.

"BLOWBY DOES NOT EXIST IN A VACUUM."

Again, this is a plain lie. Blow by is NOT corrected by installing the "Envalve" as it does NOTHING to fix the cause of the blowby. All it is doing is drawing in more air from the crankcase and as mentioned above, will most likely lean out the fuel mixture.

"YOU CAN SAFELY CHANGE OIL AT 9,000 MILE INTERVALS."

Again,,,show some independent lab tests proving that the "Envalve" will give 9,000 mile oil service. It can,,,,,,but ONLY If you are running a full synthetic oil. (actually, a full synthetic will give 15,000 miles WITHOUT the Envalve!)
Conventional petroleum oil will rarely provide acceptable service once it gets past 5,000. If you plan on going past 5,000 miles, take an oil sample and have it analyzed before going any farther. Been there, done that.
With my bypass filter and premium spin on filter and good oil, I can push conventional oil to 6,200 miles before its time to change it.

While the "Envalve" may appear to decrease the EVIDENCE of blowby, the problem is still there! Added to that the danger of leaning out an engine and possibly causing a burned piston or valve, the supposed benefits are not worth the risk.

Personally, the PR on the "Envalve" web site is about as full of s**t as a Christmas turkey!!!
08-05-2006 03:28 PM
97Z28 the only way to "eliminate" blowby is to replace your piston rings withb gapless rings. replacing your PCV with another device wont work. its just a money scam.
08-05-2006 02:42 PM
ram440
blowby

I have a 67 Dodge Coronet R/T 440 4 speed.
I am experiencing a great deal of blow by.
I have heard of a device called the ENVALVE, it replaces your PCV valve
to eliminate blowby. Does anyone know if they work?

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