can some tell me y people check filler cap....i mean take it off whilst engine is running??

ive looked at 1 2nite and it cut out when i took cap off ....wot does this mean?????????

 

Why the fook you taking the the petrol cap off?

I assume you mean oil filler I honestly cant remeber if it should or shouldnt cut out when removed, I think it could mean the breathers blocked.

 

yes i do mean filler cap dude

 

oil filler cap!!!

 

it shouldnt cut out. Ive driven mine with the cap off without knowing it only to smell oil through the vents

 

I believe it should cut out due to when you remove the filler cap there is a massive air leak. If you have an aftermarket breather system that vents to atmo then it wont cut out..........at least thats what mine does

 

If the standard breathers are working correctly it SHOULD cut out. If they are blocked then it won't cut out or will run lumpy. The reason is the fuel metering unit draws on the breathers and it meters this air. When you take the cap of, you introduce unmetered air into the induction system which also drops the amount of vacuum and causes it to run too lean for it to stay running.

A poorl sealed dipstick or gaskets on the engine can also effect the way the engine runs.

My car has had the breathers removed from the induction system completely and have blocked the port of in the the meter unit and the car set up accordingly. The breathers than go to a breather oil seperator and then to atmoshpere (a catch tank could also be used but it still ultimately breathes to atmosphere).

 

thats what I meant mate .........well put

 

before i rebuilt my engine, my car had covered 140k and would run with the cap off, since the rebuild it cuts out.

 

Well Done Daz

 

Perfect explanation.

 

as 220 tc said it will cut out or it should unless u got a baileys oil breather on there then it should still run