displaying posts 1 to 8 of 8

Author Subject: Another 'tapper' thread..
blaze wip

Senior User

Location: Hexham

Registered: 07 Sep 2009

Posts: 926

Status: Offline

Post #1
NOT amused, came home from work last night, gave it a bit of a squirt heading down towards the junction leading onto my estate and when i came off the throttle i noticed a tapping nose over the sound of the engine.

It's only really apparent at about 2800rpm, VERY slight tap below this and lost in the noise of the engine/exhaust above 2800.

Done a bit of a search and will check things like plugs etc later, couldn't last night due to the darkness and a lack of tools at home.

Any other ideas while im on chaps? (& chap-esses?)

________________________________________



mechanical_repairs wrote:

i feel like giving her a good dry bumming session.
Posted 6th Nov 2009 at 15:57
jib

Seasoned Pro

Location: Doncaster

Registered: 21 Feb 2008

Posts: 1,842

Status: Offline

Post #2
Remember the injectors can make a tapping noise. Also check for low oil.

I can't see it being a bent valve unless your cambelt has slipped slighty. When was it last changed?
Posted 6th Nov 2009 at 16:00
blaze wip

Senior User

Location: Hexham

Registered: 07 Sep 2009

Posts: 926

Status: Offline

Post #3
I can almost imagine the faces as people read this...
I don't know!! I asked the previous owner when i bought it, when it was last done, he didn't know either. (bought it early sept)
It was top of my to do list on payday this month anyway (as seems to be the case when s**t like this happens) Put it off in favour of a CAT last month. Wish i hadn't now. Angry

When you say the injectors can tap, what do you atually mean mate? Is it ok for them to tap? Can it be stopped? I've read that the 'tapping' is supposed to get louder when the engine revs but like i say, mine kind of gets lost in the rest of the engine noise above 3k

________________________________________



mechanical_repairs wrote:

i feel like giving her a good dry bumming session.
Posted 6th Nov 2009 at 16:10
al4x

Seasoned Pro

Location: Hitchin

Registered: 20 May 2003

Posts: 23,513

Status: Offline

Post #4
if it wasn't tapping and the cam belt hasn't gone then it won't be the normal reason for a tapper so as said most likely to be a loose plug or some other reason
Posted 6th Nov 2009 at 16:37
jib

Seasoned Pro

Location: Doncaster

Registered: 21 Feb 2008

Posts: 1,842

Status: Offline

Post #5
blaze wip wrote:
When you say the injectors can tap, what do you atually mean mate?


Its more of a ticking noise from the injectors.

If it was a bent valve, the speed of the tap would increase with the rev's of the engine.
Posted 6th Nov 2009 at 17:32
richie_25

Regular

Location: Aberdeen

Registered: 27 Oct 2005

Posts: 326

Status: Offline

Post #6
Loose plugs can cause this as it happened with my last one. Hope this is the case for you.
Posted 6th Nov 2009 at 17:35
matt_gti

Senior User

Location: Leafy Surrey

Registered: 08 Sep 2008

Posts: 667

Status: Offline

Post #7
Mine started to tap one morning when I started her. You could here it over the injectors and speeded up with the revs. I knew it could'nt of been the cambelt as it was fine the day before but the thought of it still scared me!. I put it down to a sticky tappet as after a long drive the noise went.

________________________________________

306 GTI-6
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Posted 7th Nov 2009 at 05:19
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

Status: Offline

Post #8
Plugs are the best bet now the weather has got colder.

________________________________________

Nothing to see here
Posted 8th Nov 2009 at 01:57

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