A6 1.8T Camshaft adjusters...pls help

[chillerno1uk]

hello everyone,

i have had my Audi checked by an Audi specialist regarding the noise that appears i accelerate (mentioned in previous thread). The specialist has said that the turbo is fine...it is actually the CAMSHAFT ADJUSTER/TENSIONER that needs replacing.

He has quoted a figure of £550inc Vat and labour.

I was just wondering if someone could please let me know if this is a reasonable figure or is he just ripping me off??!!

Much obliged.

 

[simonwjones]

Camshaft or CAMBELT

Pretty sure camshafts dont have tensioners as they are held down with journals.

ifs its the cambelt tensioner he taking the ****.

If you have a whining noise that getting higher as you accelerate it could also be one of the cambelt followers. Basically a round wheel on a bearing that the cambelt goes over.

the bearing went on one of mine and yopu could hear me coming up the street. The bearing was about £25 and it took me and my mate about 2 hrs to change. Thats on a V6 which are a barsteward to work on.

double check what he told you and let us know

Simon

 

[chillerno1uk]

thanks 4 ur reply, well he reffered to it as a "CAM ADJUSTER" and said that it is at the back of the car so whole front end would need to be stripped off.

i told him that i had also noticed (while driving the car to his workshop) that if i was to reduce my speed by breaking when approaching a roundabout at the end of the dual carriageway - basically from about a speed of 40mph+ the car would just stop and the battery light would show and i had to restart everytime. This took place about 7 times during a journey of about 7 miles.

He said that this was also due to this "adjuster" as the timing of the car is out thats why its playing up like this.

The sound is a sort of rattling sound and yes it does get louder as u accelerate as i could really hear it when it was being checked in the workshop.

I will speak to him again tomorrow and try and get some more info...the engine management light has also been showing for a good 8 months now. He diagnosed the fault thru the light...please let me know if u need anything else as i have made an appointment for the 28th but i thought id ask around before then cause £550 alot of money and dont want to spend it if i dont need to. As i asked the specialist if he was certain this was the problem and that it would resolve the issue and he said "well i can't be certain but we have to try this first". This really annoys me as i have already paid this guy nearly £800 for various things since last June when my engine management light started showing and to this day it is still showing! is that the way it goes...can these specialists not pin point the problem, i mean i'll even take it to Audi dealership if it means getting the problem solved once and for all!!! pls let me know.

Thanks.

 

[simonwjones]

Its been a while since I rebuilt an engine, most of my experience being with 4 stroke motorbikes.

Normally on a 4 stroke with overhead cam, the camshafts are driven by a chain from the crankshaft. The chains do wear with age, so to compensarte for this the chain is normally tensioned by a spring loaded tensioner bar or pully. This automatically takes up any play in the chain until a time such the chain has stretched beyond the point that the tensioner can take up the slack.

At this point it gets noisy and can either slip a cog ( Bad news) or start to rub against the internal camchain pathway.

I remember working on an old XL 250 that did this and it actually wore through the barrel casing and started ******* oil.

Im not sure about the internal of the 1.8T engine, but as it can get quite lonely in the A6 section it may be worth putting a new thread in the B5 or B6 section of the A4 and linking to here, asking for advice.

If this is the case then the top end of the engine would have to be taken apart to chgange the tensioner.


Simon

 

[macca]

on the 1.8T the cambelt drives one of the cams from the crank, then the two cam are connected by a small chain at the back of the engine so that the first cam drives the other, this most probably has a tensioner on it.


i'd say the price quoted sounds quite high, if it's a main dealer then i wouldn't be surprised. but i have never known anyone to have to replace these so can't comment.

 

[Broken Byzan]

The chain tensioner itself would cost you around £100, £20 for the chain, £10 for the gasket and say 2 hours work, so i would say you are being quoted silly money.Its not difficult to do if you at all handy, around 5 out of 10 i would say