Dead Chimaera - no spark at plugs.
Discussion
The other day my Chimaera suddenly died on me. Running great one moment, next moment not running at all.
Checks confirmed good spark from king lead but no spark at plugs. No obvious faults within distributor cap, the air gap in the distributor pick up is correct, rotor arm is expensive Distributor Doctor item so shouldn't be tracking, and it's whizzing around quite happily.
All fuses and ignition feeds relay OK and with nice clean contacts. Coil has 1.1 ohm on primary and 52500 ohm on secondary, so coil looks OK.
Was getting nominal 12V at the coil +ve with ignition on, but also getting 12V between battery +ve and coil -ve with ignition off, which according to Haynes manual indicates fault in amplifier unit. So got new Powerspark module and car still won't start and is still showing 12V between battery +ve and coil -ve with ignition off. It's still also showing nominal 12V at coil +ve and still has good spark from king lead but nothing at plugs.
Could faulty distributor pick up cause this? (Still shows 12V at coil -ve with pick up disconnected.) Otherwise I'm out of ideas, so any suggestions welcomed.
And if I can't fix it, can anyone recommend a good TVR savvy garage in central Warwickshire who could sort it out?
Checks confirmed good spark from king lead but no spark at plugs. No obvious faults within distributor cap, the air gap in the distributor pick up is correct, rotor arm is expensive Distributor Doctor item so shouldn't be tracking, and it's whizzing around quite happily.
All fuses and ignition feeds relay OK and with nice clean contacts. Coil has 1.1 ohm on primary and 52500 ohm on secondary, so coil looks OK.
Was getting nominal 12V at the coil +ve with ignition on, but also getting 12V between battery +ve and coil -ve with ignition off, which according to Haynes manual indicates fault in amplifier unit. So got new Powerspark module and car still won't start and is still showing 12V between battery +ve and coil -ve with ignition off. It's still also showing nominal 12V at coil +ve and still has good spark from king lead but nothing at plugs.
Could faulty distributor pick up cause this? (Still shows 12V at coil -ve with pick up disconnected.) Otherwise I'm out of ideas, so any suggestions welcomed.
And if I can't fix it, can anyone recommend a good TVR savvy garage in central Warwickshire who could sort it out?
If you have a spark at the king lead, doesn't that suggest that everything up to the king lead is working?
I suppose I could contrive a bizarre electronic failure which caused a spark at the wrong time wrt rotor arm position, but there's nothing to make me think that's happening here.
Is the vac advance cannister still plumbed in and holding vacuum?
Can you gently twist the rotor arm to increase the advance and feel it spring back to the rest position again?
I suppose I could contrive a bizarre electronic failure which caused a spark at the wrong time wrt rotor arm position, but there's nothing to make me think that's happening here.
Is the vac advance cannister still plumbed in and holding vacuum?
Can you gently twist the rotor arm to increase the advance and feel it spring back to the rest position again?
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