Fresh 2.7, doesn't want to wake up Options

[930cabman]

My /6 conversion is going on 3 years as it seems as many do. I had a local old school reputable shop build the stock 2.7, case was done at Ollies, .... should be a great engine. Finally trying to get her barking, but just won't take hold. While cranking she wants to start, but when I release the starter, she conks out. We have a spark (not real significant), timing is close, carbs appear ok.

Is it possible the valves or maybe rings are not sealing because the engine sat for about 2 years?

[Superhawk996]

Got it.

Agree the 170 ohms on the /6 is not ideal

Ohms law: 12v / 170 ohms = .071 amps of parasitic draw. This is more than it should be but not enough that it would account for your starting difficulties. 71mA of current draw is not enough to draw down your battery or cranking voltages. It will however, drain your battery in storage.

Are you using points or some sort of other electronic ignition (Pertronix, Mallory, etc.).

Your MSD box at 12k ohms isn’t the source of the 71mA load.

Focus on the basics. Some sort of electrical short is not the cause of your starting issue.

Example: will the engine start and can it be kept running on brief squirts of starting fluid?

[930cabman]

Got it.

Agree the 170 ohms on the /6 is not ideal

Ohms law: 12v / 170 ohms = .071 amps of parasitic draw. This is more than it should be but not enough that it would account for your starting difficulties. 71mA of current draw is not enough to draw down your battery or cranking voltages. It will however, drain your battery in storage.

Are you using points or some sort of other electronic ignition (Pertronix, Mallory, etc.).

Your MSD box at 12k ohms isn’t the source of the 71mA load.

Focus on the basics. Some sort of electrical short is not the cause of your starting issue.

Example: will the engine start and can it be kept running on brief squirts of starting fluid?

I have used a points/condenser setup for many years, but this project is running a Pertronix 1867A. Starting fluid seems to help a bit, but not enough. While cranking she trys to start, but once I release the key to the run position she dies. I have confirmed with a VOM 10.5 while cranking, 12V when in the run position.

Just about ready to call in the calvary as in a new set of eyes.

Thanks to all

actually quite anxious to get this project rolling down the road, there have been many hurtles

[mb911]

Got it.

Agree the 170 ohms on the /6 is not ideal

Ohms law: 12v / 170 ohms = .071 amps of parasitic draw. This is more than it should be but not enough that it would account for your starting difficulties. 71mA of current draw is not enough to draw down your battery or cranking voltages. It will however, drain your battery in storage.

Are you using points or some sort of other electronic ignition (Pertronix, Mallory, etc.).

Your MSD box at 12k ohms isn’t the source of the 71mA load.

Focus on the basics. Some sort of electrical short is not the cause of your starting issue.

Example: will the engine start and can it be kept running on brief squirts of starting fluid?

I have used a points/condenser setup for many years, but this project is running a Pertronix 1867A. Starting fluid seems to help a bit, but not enough. While cranking she trys to start, but once I release the key to the run position she dies. I have confirmed with a VOM 10.5 while cranking, 12V when in the run position.

Just about ready to call in the calvary as in a new set of eyes.

Thanks to all

actually quite anxious to get this project rolling down the road, there have been many hurtles

Did you do a compression check yet?