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Tapping noise

4.9K views 31 replies 11 participants last post by  jordimussol  
#1 · (Edited)
Tapping noise - SOLVED!

Gordon was fine yesterday. Have been driving him all weekend.

This morning on my way to work, started it and heard this tapping. Drove round the corner and thinking if it was the sound would disappear as soon as oil would get through the engine.

Noise is still there. No loss of performance, and from my (limited) experience I'd say it's a tappet. It seems to tic in sync with the engine revs and it happened in my other (diesel) car.

EDIT: It's not really a loud noise. It's a ticking that I know is there that wasn't yesterday. More of a click than a tap. No bigger vibrations and engine is as smooth as ever (apart form the extra click).

In that one, I got it solved by changing the oil from 15W40 to 20W50.

Someone said NEVER to put that oil in the MGF, but then I think it may be because of temperature. Here a 20W50 I think is perfectly fine. We're not going to go lower 15ÂşC at the moment and in summer we do pass 40ÂşC.

Considering Gordon now has 6k kms on this oil (Magnatec) I'm tempted to change it to see if this will solve it.

The oil I used before the expensive Magnatec was a Spanish brand and same spec as Magnatec but cheaper (Cepsa Synth. 10W40 with all same JASO, ASPI and API). I thought that oil was brilliant (and comes in 5 litres, not 4!)

Checked the oil level and it's just above the low mark. I'll try topping it up and run the engine for a bit in the garage til it gets to temp.

I'm pretty sure that noise wasn't there when I drove Gordon into the garage last night!

EDIT2: I'm not seriously worried as when this happened to my other car it was 2 years ago and hasn't missed a beat ever since. Covered a further 50k kms and does not drink any oil at all (some slight evaporation) and that engine has now 270k kms.

EDIT3: ISSUE HAS BEEN SOLVED (touch wood).

A combination of swearing and threats to Gordon, warming up the engine and the engine-oil additive to clean it up (supposed to improve compression and clean it all out) and after a 5-10minute drive around town the noise suddenly stopped. Will drive Gordon to work tomorrow.

Total cost of the 'repair' 5,50€ of the 'cheap' engine cleaner from the supermarket (actually Wynn's but rebranded)

Also bought some more engine oil (not Castrol Magnatec but Spanish Cepsa Platinum) to keep in case I decide to swap the oil. Will wait til it reaches 10k kms - 6k miles.
 
#7 ·
as spaceoctagon suggests exhaust manifold, or another source of ticking can be loose spark plug.

If it is a tappet - wynnes hydraulic cleaner added to the oil and running for a bit before your oil change helps.

Other less likely options:

* Someone has sneaked in overnight and swapped your MPi for a VVC
* spanish terrorists have targeted you for for martyrdom

;)
 
#13 ·
I've not inspected it fully...but alternator belt is brand new. Changed it just before coming to UK. May only have 4k miles.

The sound doesn't come from there though. Had it running a while and put my ear to try and find the source of it.
 
#12 · (Edited)
Right.. I've taken the spark plugs off and back on again. I've taken the cover off and back on again. Then I even got under the car and noted one of the 4 screws missing from the exhaust manifold to the down pipe. Replaced that and tightened the rest. Still does the same noise!

the noise seems to be the tappets. Not exhaust manifold or the charcoal thingy either.

Spark plugs I always follow the same method... tighten them on loosely and when it gets hard, give it a 1/4 turn with the spanner (or special tool in this case).

I put the same spark plugs at exactly the same place.

The oil is currently 6k kms, so I may put one of those Winn's Hydraulic Engine Cleaner thingies and change the oil soon.

I've got a video which I will upload onto my facebook profile. Not sure I can link it here or not!

Here are some photos then:

Image


Everything seems greased and oiled up.
Image
 
#24 ·
Told ya so! ;)

Cant beat a drop of wynnes hydraulic cleaner.

I had the tappets out of the 4x4 late last year to clean them. monster of a job. didnt make much difference. a dose of wynnes solved it.

Probably find best to leave it a few days then do a change for some slightly thinner stuff.

Glad its sorted anyway.
 
#28 ·
spark plugs were fine on mine as they've not been in there for 5k miles! they were brand new from a few months ago. And I've been fitting spark plugs all my life. So I knew it couldn't be that (though not impossible, must say!)

Anyway.. touch wood... and all is fine.
 
#32 ·