displaying posts 1 to 5 of 5

Author Subject: tapping when revs droppin??
loopylou

Newbie

Location: swansea

Registered: 16 Apr 2010

Posts: 2

Status: Offline

Post #1
Hey Guys, I searched through many 'tapping' threads but nothing sounded similar sorry - I noticed my '98 GTI-6 has started making a harsh tapping noise Sad Upon idle and reving up it sounds fine , but give it a lil rev up to say 3500rpm then as it drops back down this is when it makes its noises?..same when driving, sounds fine when accelerating through the gears, but as soon as you decelerate to change back down so the noise appears. It is not the same sound tapping as you commonly hear on old Fiesta or Ka's, its a bit harsher???

I have recently had the head skimmed,a new head gasket and head rebuilt with new spring thingsUnsure, as that was being done i asked them to also change timing, aux belts, filters etc...

The guys have looked into the noise but say they really dont know the cause and ensure me it cant be anything they have done, can anyone help me here ?

cheers, Louise x Love
Posted 16th Apr 2010 at 03:18
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline

Post #2
Hi Louise,

Is there any chance you can post a video of the fault, this would help us to diagnose it better. Yes

As for the tapping noise, it may be a loose bolt resonating at certain rpm, it could be a loose spark plug only showing itself when the engine is not under load.....

I could even be an injector starting to get noisy....

Hope this gives you some ideas to look at, post back your findings on the above and we can go from there.

Cheers,

Stan.

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Posted 16th Apr 2010 at 05:19
roland rat

Yeeeah Rat fans!

Location: Swansea

Registered: 29 Nov 2006

Posts: 22,284

Status: Offline

Post #3
Hi Louise,

As Stan has said there could be a few causes of the 'tapping' noise from the engine.

I'm also in Swansea and know quite a bit about these cars so if you want me to take a look drop me a pm Wink

Ashley
Posted 16th Apr 2010 at 05:27
loopylou

Newbie

Location: swansea

Registered: 16 Apr 2010

Posts: 2

Status: Offline

Post #4
sorry guys i havn't had a chance to get a video yet, will try my best over the wknd.
Posted 22nd Apr 2010 at 03:09
mabgti

NV motors

Location: Bham tunnel @7400rpm

Registered: 28 Aug 2003

Posts: 9,127

Status: Offline

Post #5
did you get to the bottom of this?

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Posted 11th May 2010 at 03:02

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