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Model specific boards => Golf mk3 => Topic started by: oliver07 on 17 May 2009, 18:25

Title: ENGINE INLET NON RETURN VALVE
Post by: oliver07 on 17 May 2009, 18:25

hi where is the best place to get one of these for my vr6 golf and will a broken one affect the performance much thanks

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: Adam on 17 May 2009, 18:41

The non-return valve going to the break servo?

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: oliver07 on 17 May 2009, 18:50

no mate its from the air box into the engine seen one on ebay item 200301191788

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: AudiA8Quattro on 17 May 2009, 18:57

Thats the engine breather, and yes in theory it could affect performance.
I'm not sure how much they are at a main dealer. You could also search ebay for anyone else that is breaking a vr6.

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: ace on 17 May 2009, 19:19

get the one of ebay, had to get one for my bro-in-law. vw charge for the whole inlet pipe think it was something stupid like £90

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: Khare on 17 May 2009, 19:24

how does it affect performance?

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: AudiA8Quattro on 17 May 2009, 19:40

Airflow readings are calculated by the ecu with the breather working.

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: Khare on 17 May 2009, 20:03

?

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: oliver07 on 17 May 2009, 20:08

can any of you guys please tell me if cleaning the throttle body is a bolt off bolt on affair thanks

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: AudiA8Quattro on 17 May 2009, 20:16

Quote from: Khare on 17 May 2009, 20:03

?

The ecu relies on the airflow meter amongst other things to calculate the fuel/air mixture, the crankcase ventilation is further downstream, so if it is not functioning correctly then the ecu will not calculate it correctly, as the extra burnt gasses are taken into account.
This can cause problems, such as the throttle response feeling a bit flat.
I had a problem similar on my A8 a few months back. The main engine breather had collapsed, i couldn't believe the improvement when i replaced the hose.

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: AudiA8Quattro on 17 May 2009, 20:18

Quote from: oliver07 on 17 May 2009, 20:08

can any of you guys please tell me if cleaning the throttle body is a bolt off bolt on affair thanks

Yes.
I would recommend removing the throttle body completely, then using a carb cleaner on it.
After all, whats the point of cleaning one side of it?
Don't forget, you will need a new gasket for the throttle body to inlet manifold.

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: oliver07 on 17 May 2009, 20:27

will order the gasket from vag tommorrow the performance has been naff only had this 2 weeks but had one last year it was a flyer thanks for all your advice and help.

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: AudiA8Quattro on 17 May 2009, 20:29

What performance issues have you got with it?

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: oliver07 on 17 May 2009, 20:39

no real grunt needs reving to get it to go just gave it a full service the car has full service history and is on 160k miles no smoke or chain rattle just quite slow my other vr6 golf was a rocket but only had 100k miles

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: AudiA8Quattro on 17 May 2009, 22:18

It would be a good idea to get it on VAG-com.

Title: Re: ENGINE INLET NON RETURN VALVE
Post by: DazVR6 on 17 May 2009, 22:42

Quote from: oliver07 on 17 May 2009, 20:08

can any of you guys please tell me if cleaning the throttle body is a bolt off bolt on affair thanks

Yes it is, plus coolant pipes if obd2.

Iknow theres a guy on ebay who sells em for £34 but if you want one from the stealers then go to ford!!!

That big ford that shares the vr6 engine.....thats it a galaxy....they sell em at half the price of vw stealers.