Lucas DLB198 Ignition Coil Readings

adamjack

adamjack

Member
Hi

Does anyone know what readings I should get on the above coil when I test it with a multimeter ?

I am getting about I ohm on the primary and about 8K ohms on the secondary I think I should be getting 0.81 ohms on the primary and 10-11K ohms on the secondary

the rason I ask is I think my coil has packed up ,there is damage to the outer casing ,and I am getting no spark :roll:

Cheers

Adam :)
 
Hi Adam,

I am not able to help with the resistance readings unfortunately, but am wondering, which ignition system are you using? My understanding is that the Lucas DLB198 requires an unballasted 12V supply.

Ron.
 
SydneyRoverP6B said:
Hi Adam,

I am not able to help with the resistance readings unfortunately, but am wondering, which ignition system are you using? My understanding is that the Lucas DLB198 requires an unballasted 12V supply.

Ron.
Click to expand...

Hi Ron

Yes you are correct ,the feed to the coil is 12V unballasted

Adam :)
 
According to various sites, the primary resistance is 1ohm. One site suggests their equivalent to the DLB198 has a secondary resistance of 10 - 11 Kohm.

I take it you have electronic ignition? It's not meant for use with contact breaker points, it'll likely burn them out quite quickly!
 
Primary resistance sounds ok, higher resistance is ok ie if it were meant to be .81 then 1 ohm would be ok however were your resistance reading lower than .81 ie .50 of an ohm or .6 then there would be a problem. The secondary resistance is not a reliable test of function as this is only a static low voltage test, in dynamic high voltage use such as in your car that resistance measurement could be much less as the high voltage breaks over between windings. The only reliable test is coil substitution with a known good one.

Graeme
 
darth sidious said:
According to various sites, the primary resistance is 1ohm. One site suggests their equivalent to the DLB198 has a secondary resistance of 10 - 11 Kohm.

I take it you have electronic ignition? It's not meant for use with contact breaker points, it'll likely burn them out quite quickly!
Click to expand...

Yes it is electronic Ignition ,I have tried several tests with the coil ,and I am getting no spark ,I have ordered a new one ,and I will hope this sorts out the problem :)
 
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