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sasdiscos



Member Since: 22 Jul 2023
Location: UK
Posts: 155
 
Still trying to track my mystery noise, can anyone help?
So Ive checked everything now.

I have what I think was pinking on my 4.0 v8 efi.
Ive checked the timing over and over.

I have just done a full service and put fresh oil and filter in.
I dropped the sump and there is no sign of any metal in there, all looks good.
I have had a bore scope down the spark plug holes and can't see any issues.

I have just this morning done a compression test, however I now read I need to do it warm and with oil down the bores. However they are all showing reasonable.
I think with a warm engine and oil I would see the 160-190. But they are all of equal pressure so that's good yes? I will redo the test next weekend as I have run out of time.



I have tightened all the manifold bolts but can't see any signs of leakage there.

The spark plugs all look good, except 1 that looks like it may of had blow by, this could be the cause of my ticking at high load high rpm?

I have ordered another set of new NGK spark plugs just in case.

Any advice appreciated. Steve.
Post #1016419 26th Nov 2023 12:48pm
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sasdiscos



Member Since: 22 Jul 2023
Location: UK
Posts: 155
 

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Post #1016420 26th Nov 2023 12:49pm
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