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Ping Detection Kit Made < 20 Dollars

180bfj20det

By 180bfj20det,
in Engines & Forced Induction

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180bfj20det Community Regular

180bfj20det

Posted
Posted

OK,

Made up an "engine stethescope" which is just a hearing aide for the elderly which I bought from dicksmiths for like 12-13 dollars. Removed the mic, extended it and attached (glued) it onto a clip which I place onto the engine's block. This has been detailed before on some internet site, cant remember which it is, but someone should know if people are interested or I could take pics and show you.

Anyway, it works very well. You can hear everything that is going on. However, since I havent had it on a high performance engine yet taken to the limits, I have not heard pinging. I dont think Id be able to advance the ign timing enough on a hilux ute to hear pinging (or would I)?

OK, now, people who use this method of detecing pinging on the block with a microphone, dont you find that general engine noise will "flood" the mic with its noises? In opposite respect, attaching a copper tube bolted onto the block which is subsequently t pieced to a hose and plugged into your ears seems to be a better way since the plastic piping will not detect and amplify general noise, youll just hear block noise (see http://bagpuss.swan.ac.uk/horsham-developm...detonation.htm).

So is the mic method any good? Im just scared to miss the pinging and let it go boom.

Cheers

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Kennedy Mentor

Kennedy

Posted
Posted
OK,

Made up an "engine stethescope" which is just a hearing aide for the elderly which I bought from dicksmiths for like 12-13 dollars. Removed the mic, extended it and attached (glued) it onto a clip which I place onto the engine's block. This has been detailed before on some internet site, cant remember which it is, but someone should know if people are interested or I could take pics and show you.

Anyway, it works very well. You can hear everything that is going on. However, since I havent had it on a high performance engine yet taken to the limits, I have not heard pinging. I dont think Id be able to advance the ign timing enough on a hilux ute to hear pinging (or would I)?

OK, now, people who use this method of detecing pinging on the block with a microphone, dont you find that general engine noise will "flood" the mic with its noises? In opposite respect, attaching a copper tube bolted onto the block which is subsequently t pieced to a hose and plugged into your ears seems to be a better way since the plastic piping will not detect and amplify general noise, youll just hear block noise (see http://bagpuss.swan.ac.uk/horsham-developm...detonation.htm).

So is the mic method any good? Im just scared to miss the pinging and let it go boom.

Cheers

Best to fix the mic to a radiator/coolant line as the coolant does run through the block. The pinging will travel up that line but will also eliminate alot of background noise. Good Luck

gtst25 Proficient

gtst25

Posted
Posted

Getting the old hilux to ping won't be a problem. Anything will knock if you advance the ignition enough - I've had some old heaps of junk over the years and all have pinged.

Cheers

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