I have a 2019 Panda 4x4 TwinAir with 14300 miles on the clock. I have a problem with crank case compression (see video). Is this simply a failed crank case breather valve problem (PCV)? does anyone know the part number for the valve or is there a delete available?
Technical Crank case pressure (failed PCV?)
- Thread starter NiallSL
- Start date
Currently reading:
Technical Crank case pressure (failed PCV?)
I downloaded and watched video.
I do not think you have a problem with excess crank case pressure .
Engines I have seen with excess pressure blow the oil cap off if loosened with engine running.
Cap on your engine appears to be slightly sucked down.
I do not think you have a problem with excess crank case pressure .
Engines I have seen with excess pressure blow the oil cap off if loosened with engine running.
Cap on your engine appears to be slightly sucked down.
Last edited:
I have looked at other TwinAirs and they do not have this issue. If it isn't crank case pressure, what is it?
That is extra info not on your first post . I have amended my post accordingly..
Were the other twin air engines you looked at identical spec to yours?
Strangely your question has cropped up recently and it appears not uncommon behaviour for twin air.
What made you undo the oil filler while engine running in first instance? Is there any more info too add?
I had to add some oil (not when the engine was running). i opened the oil cap out of curiosity. I have worked on many engines, none have had excess pressure when you open the oil filler cap. its definitely blowing not sucking. I'm also getting a small puff of smoke from the exhaust, another indicator of excess pressure. i presume there is a blockage in the air / oil separator (PCV)?
The Panda Nut
Nutty about Pandas Infected by Panda virus and OPD
Do a search on here. Smoke more likely turbo related. Crankcase apparently high pressure is normal. Don't over fill the oil read the level with dip done NOT screwed down, just resting on top of the caps threads. It doesnt have a pcv.
Panda Nut, checking oil level with the cap resting on the threads increases the amount of oil in the sump? Increasing the chance to overfill ?
The Panda Nut
Nutty about Pandas Infected by Panda virus and OPD
No, it reduces it as the dip stick is higher than if screwed down. Have a search on Twin air dip stick on here. I made my own steel one for oil checking as the original is USELESS. Lots of suggestions on reading the oil to assist you. Its very easy to get the level very wrong, both low and high.
- Joined
- Sep 21, 2017
- Messages
- 949
- Points
- 307
I have to agree here; I also have asked whether the level check is with the cap screwed in or not, previous answers suggest screw the cap in and check level.
TTR, you are right, there isn't a PCV valve but there is a cylinder head breather. There is a gauze inside which is clear.Eh up,
I’m no expert on this but I’m not sure the TA has a PCV
If I’m right it’s the uniair system that dictates not a PCV
Stand to be corrected
Hope this helps though
Eh up NiallSL
Glad it helped - interesting I’ve stripped my TA and never noticed the gauze breather
. I’ll have a look im thinking I must have clocked it at some point,
I wonder if it’s meant to be “life time” none serviceable item - my
if so.
Let me know if you strip yours out as to it’s condition- really got my interest has this post
Glad it helped - interesting I’ve stripped my TA and never noticed the gauze breather
. I’ll have a look im thinking I must have clocked it at some point,I wonder if it’s meant to be “life time” none serviceable item - my
if so. Let me know if you strip yours out as to it’s condition- really got my interest has this post
Similar threads
- Question
