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MG TD TF 1500 - condenser

Can you use a digital meter to check ignition condensers?
I get conflicting results, analogue says open circuit, digital says no.
This is just out of interest as I will change it anyway.
Ray TF 2884
Ray Lee

Timothy Burchfield

Good article.
I will add that "infinite" is not an actual value.
Let's say that the DC impedance of the condenser shall be greater than 1 MOhm. DVM easyly handle capacitance up to 20 MOhms.

However, the transiant value down to O in Ohmmeter might be quite short to show something on a DVM.


LC Laurent31

My 2 cents, if the points show normal wear, (No very large deposit on one side and lots of erosion on the other) Do not replace the condenser! I do have stock on the condensers the racers use, a full length one, not a midget one the big box stores sell.
Len Fanelli

Len, it was a case of "spit, fart, bang and stop". New condenser cured it. I was just interested in why I got different results from the meters.
I have a later dizzy and have a condenser on jump leads and clip that to the feed after cutting out the faulty one to get me home.
Ray TF 2884
Ray Lee

This thread was discussed between 03/02/2019 and 04/02/2019

MG TD TF 1500 index

This thread is from the archive. The Live MG TD TF 1500 BBS is active now.