Issues with High pressure too low mk5 GTI

[rich83]

You need a new intake cam.

[momo.mk5GTI]

Thanks to all mates for help me to resolve the problem, after re-examining the camshaft, we saw that on one side it is much more worn out than the other (for that I was wrong that the shaft is in good condition because i dont turn it) it is scratched slightly but it cannot be felt with fingers and even through a small opening not many things can be seen. But what bothers me is after this camshaft is changed, what can happen badly. My logic is this, the current camshaft humps are already in miles away and slightly worn aren't they? Should the head valves hoses must be corrected before the new shaft is fitted, because the valves are right now fit in their place, but with the new shaft fitted will any of the valves remain open or have problems with the valves? That scared me the most. Are there any mates who have changed the camshaft what are the risks I want to know more information and I will decide what to do. I do not want to overhaul a car that is already 14 years old. Excuse me if my question is stupid I feel a little annoyed with my reasoning and questions but I'm not too rich to put my month pay in the car. Thanks.

[FJB]

The camshaft uses hydraulic lifters to open the valves, which automatically adjust with oil pressure. The camshaft lobes push down on rollers that are attached to the hydraulic lifters which press down on the valves. I doubt there will be any damage in there unless a piece of you broken cam follower found its way in there. It is best practice to also change the cam chain and adjuster while replacing the camshaft as you have to take it off anyway.

[momo.mk5GTI]

The camshaft uses hydraulic lifters to open the valves, which automatically adjust with oil pressure. The camshaft lobes push down on rollers that are attached to the hydraulic lifters which press down on the valves. I doubt there will be any damage in there unless a piece of you broken cam follower found its way in there. It is best practice to also change the cam chain and adjuster while replacing the camshaft as you have to take it off anyway.

thanks for the info, yes the chain and the tensioner will also be replaced as the timing belt water pump rollers and the belt with the dynamo tensioner, if anyone has a pdf file or some link about the principle of how valves work they can publish it I want to understand how valves and camshafts work.

[ROH ECHT]

No need to worry much about the valve lobes. They will not wear near as much as what the cam follower did to the tri-lobe because the rockers for the valves have rollers on them. VW had an extended warranty and cars were getting new intake cams with up to 120k miles without any worry to the performance of the valves.
If you want an engine pdf to keep...download this; http://www.volkspage.net/technik/ssp/ssp/SSP_337.pdf

[momo.mk5GTI]

No need to worry much about the valve lobes. They will not wear near as much as what the cam follower did to the tri-lobe because the rockers for the valves have rollers on them. VW had an extended warranty and cars were getting new intake cams with up to 120k miles without any worry to the performance of the valves.
If you want an engine pdf to keep...download this; http://www.volkspage.net/technik/ssp/ssp/SSP_337.pdf

Thanks, i did not understand exactly how they works but now i have an idea how these rocker arms works. So i want to ask too if the camshaft must be original from VW or i can purchase it from another manufacturer, any sugestion which mark can be usefull? Or i see at ebay has some 'OEM' VW parts but i dont know how many is 'OEM' parts. 

This is the link

https://www.ebay.com/itm/333266036290

[momo.mk5GTI]

Hello, coud someone tell me the ref number of exhaust camshaft, and any suggestion for a camshafts kits. I think im gonna change the exhaust camshaft too. I think car will run much more better with new camshafts. Thanks.

[ROH ECHT]

This number is for the BPY in the US "for all 2.0t FSI" exhaust cam. I searched using this number to see if it comes up as the same for yours; 06F 109 102 E

Same as the BWA; https://www.autopartspro.co.uk/carparts-suche?keyword=+++++06F+109+102+E&maker_id=121&model_id=6245&car_id=23795

[momo.mk5GTI]

This number is for the BPY in the US "for all 2.0t FSI" exhaust cam. I searched using this number to see if it comes up as the same for yours; 06F 109 102 E

Same as the BWA; https://www.autopartspro.co.uk/carparts-suche?keyword=+++++06F+109+102+E&maker_id=121&model_id=6245&car_id=23795

I found for the BWA engine too. But i think its the same as the other one, this motor BWA is the same as the Audi, so if i cant find for VW i can search for Audi.

https://www.ebay.com/itm/Genuine-OEM-VW-Golf-GTI-Passat-2-0-TFSI-intake-camshaft-Original-EA113-BWA-AXX/233286398506?hash=item3650f3f22a:g:6xcAAOSwTU5dKW54 

This is the original camshaft from VW i want to find OEM camshaft for exhaust side too. I'm a litle bit scared of fact if i replace it with in aftermarket camshafts it not be runing long as the original parts (and mybe dont given the real power). So i prefer to take this one (the link is up there) to intake side and hope to find one OEM to exhaust side too. And for the exhaust side i must to search with this OEM number? (06F 109 102 E).