No spark - SLR with MBE and Stack

[RogNeedham]

engine back in ready to crank for pressure and start

 

just had a rebuild by DVA 😬. In the past 6 hrs have checked the following:

 

engine getting fuel

no spark when cranking

coil has c.9V when cranking

new distributor cap as I found the centre brush was broken

 

the MBE & MFRU and all wiring were not removed from car

 

battery reading 11V when cranking

 

anyone any ideas ? have decided to sit in the sun for 30mins before I do anything daft

 

thanks

Rog

[Klunk]

Hi Rog,

 

I know you've said the battery has 11v but it may be worth coupling another battery to your caterham battery to see if it will then start. If it still wont, at least that would definitely rule out a battery problem. Would be worth measuring the volts at the coil again.

 

Regards,

 

Giles

 

 

Edited by - Klunk on 26 Mar 2012 14:56:54

[RogNeedham]

thx Giles - tried that and still not firing ☹️

 

spins over ok but no sign of it firing up

[Klunk]

Couple of other things-

 

Have you re attached the earth strap to the engine?

Are all your sensor plugs attached (crank/cam etc)?

 

Giles

[rj]

If the throttle pot is faulty there will be no spark.

[oilyhands]

If the crank sensor is a duffer there will be no spark..

 

Oily

[RogNeedham]

ok - all sorted...so car now starts 😬 - the previous owner had created a extra length of wire for the rev counter on the Stack. Once I by passed this spark returned and engine fired

 

......no oil pressure though. Looks as though the pump is knackered. off to create a separate thread 😔

 

thanks for feedback guys