volvo penta 7.4 gi cranks won't fire

[PWilliams]

It's freezing in Seattle. The engine died while ideling. Thought is was out of gas. Got a tow in, filled it up, cranks fine, but won't start. Not even a bit. Checked fuel filters, can hear injector pump, have fuel at fuel line ports (gas sperts out of little things look like air inflators). Replaced distributor cap and rotor. Have spark at plugs, but yelow spark between center coil wire and about 1/8 inch from ground.

What's next?

 

[Don S]

Re: volvo penta 7.4 gi cranks won't fire

but yelow spark between center coil wire and about 1/8 inch from ground.

If you have that at the coil wire, you won't have any better fire at the spark plugs. And it will not start with that kind of spark. You should see bright blue spark that jumps 1/2" easily.
What is the full model number of your engine, for me, the SN would also work.

 

[gill]

Re: volvo penta 7.4 gi cranks won't fire

7/16" gap on spark checker = 24k volts

 

[Don S]

Re: volvo penta 7.4 gi cranks won't fire

7/16" gap on spark checker = 24k volts

Where did you find that information?