Volvo Owners Club Forum - View Single Post - '89-740 (8 valve) No Start

Laird Scooby · Jul 25th, 2020, 23:55

Ignition amplifier module, despite the fact you're getting a spark. Is the spark orange or a definite blue? Also have you checked the carbon brush inside the dizzy cap? They have a habit of breaking at higher mileage.

Also check your plug gap (should be 0.6-0.7mm) and dry/clean the plugs while they're out for gap checking.

You say it's a B230, is that B230 FB, FD or what? Makes a big difference to some things! Already worked out it's not a B230E as that's mechaincal injection.

Does it have a cat on it and if so, have you checked it's not blocked?

Jul 25th, 2020, 23:55	#5
Laird Scooby Premier Member Last Online: Yesterday 23:31 Join Date: May 2012 Location: Lakenheath	Ignition amplifier module, despite the fact you're getting a spark. Is the spark orange or a definite blue? Also have you checked the carbon brush inside the dizzy cap? They have a habit of breaking at higher mileage. Also check your plug gap (should be 0.6-0.7mm) and dry/clean the plugs while they're out for gap checking. You say it's a B230, is that B230 FB, FD or what? Makes a big difference to some things! Already worked out it's not a B230E as that's mechaincal injection. Does it have a cat on it and if so, have you checked it's not blocked? __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........