The V8 Owners Forum -

Well I've finally got the car taxed and insured! Spent Sunday and today putting some miles on the engine and them dam gremlins have raised their heads! 1) speedo has stopped working. 2) When i accelerate the engine is great but as soon as i ease off the accelerator pedal in any gear, the engine star...

Hi all, I've finally got the car on the road after a 6 year build took it out for its first true run the engine (3.5 EFI with a 3.9 Cam) starts up fine and accelerates really good but when i back off to cruise, the engine starts to judder and gets quite bad and the only way to stop this is to drop d...

I can’t thank you guys enough. Finally got it sorted it was the amp! Cheers.

Hi Sidecar, thanks for your input I've rechecked my pickup and its 3.3K Ohms same as yours so it can't be the pickup! I've now narrowed it down to the Ignition Amplifier I've delved further into Ramon Alban site and found this little snippet,by connecting a 1.5V pen-cell in series and two flying lea...

Thanks Dave I checked out Ramon Alban site via the link, there was section on Testing Amplifier & pickup Coil together connect 12v 21w bulb between W/B & W wires, 12v coil positive, turn ignition on and gently rotate distributor rotor arm back & forth, the reluctor wheel triggers the pickup coil and...

Hi Elliot I’ll cut one open today. Ian I’ve not only got the Earth stap on the rear of cylinder head I’ve also got two more one bolted to each engine mount. I’ve got 12v on terminal B of the ignition module from the + terminal of the coil. I’ve got 12v on terminal C of the ignition module from the -...

Well guys I think I have found the problem. As I've stated before the coil I am using is the Bosch blue: 0221119027 apparently they make different versions. Ballast ignition systems were introduced in around 1970. To find out for sure, use a multimeter to check the voltage on the positive wire of th...

Ooops I didn’t explain myself properly, on my Opel manta the coil housing has a metal bracket as part of the unit which in turn is bolted to the chassis so it’s earthed to the car. So I was wondering if the v8 should be the same?

Just had a thought, should the coil be earthed?

Hi Dave it’s the 35DM8 with no amp attached.

Hi Dave, I have the Bosch 12v Coil (blau) Blue: 0221119027 with the Ignition unit: QHL-XEI8 all new. I definitely have a weak spark at the king lead when earthing the spark plug. I have 12v coming to the coil and then on to the ignition unit. I've checked the integrity of the earth wire from the coi...

Hi Dave, just measured it and it’s only measuring 2 - 3 volts!

Sorry for the long response. Waiting for payday!
So now I’ve bought new cap, rotor arm and leads and still no luck.
The spark from the king lead is not a great one I must admit. I’ve checked the connections on the coil and they are fine. The coil is new so now I’m at a loss.

Hi Dave, so I've purchased a new distributor cap and it's about 1mm smaller in dia. it's a very snug fit again there is still no spark at the leads. My Distributor has these numbers stamped on the side 41944B <--<<[ 35DM8 5082 My engine is a 3.5 EFI and I've been told I have the wrong distributor at...

Hi guy's, many thanks for all your help, and Tom that link - fantastic, especially leading to http://www.pirate4x4.com/tech/billavist ... stemBasics