Ok my new engine won't crank ?!!!

Ok I tried starting my 545 last night this my first build I'm a Lil worried. I put the dist in at 16 degrees before tdc. It spun a few seconds then it got fuel but still didn't fire off the weird thing is when you spin It then turn the key off it sounds like It starts spinning really fast and starts blowing air out of the carb what did I do wrong ? Sorry I'm a newb

Did you put the distributor in 180 out. It is a very common mistake.

I don't think I did I stuck my finger in the spark plug hole I was own compression stroke I think

Sounds like it's out a little. When the marker is about 10* ,look and see if it's pointing at the #1 plug wire terminal on the cap. And are you sure that the valves aren't too tight

I'm going back to the shop tomorrow to play with the timing and make sure it's fireing my engine builder did my valves I'm not sure

Is your box wired to cut power while cranking?(happens alot) Are you getting spark while cranking?(have you checked).

180* will still blow your finger off the hole you have to look at the blancer to double check. Check for spark

I'm gonna check the spark first thing tomorrow it's almost like it ain't fireing till you turn the key to run I'm gonna check spark while cranking if I can figure a way to do it by myself lol

Northwest outlaw wrote:180* will still blow your finger off the hole you have to look at the blancer to double check. Check for spark

take the valve cover off to make sure its on the right stroke.... both closed at tdc

138 wrote:

Northwest outlaw wrote:180* will still blow your finger off the hole you have to look at the blancer to double check. Check for spark

take the valve cover off to make sure its on the right stroke.... both closed at tdc

I'm 99.99 % sure there both closed but this is my first time

What ignition are you running? alot of times people run switched power from a source that is killed during cranking so they get no spark while cranking.

It's a msd 6al the digram on the back says the to big wires go to the battery and one small goes to switched 12volt is that key crank or run position I have it on run

The small red must go to a switched 12v source that remains on when cranking. Use a testlight to find and a remote push button to find a source that stays lit while the engine is being cranked. If you cnverted from duraspark I believe the red wire in the IGN harness that went to the + on the coil originally has 12v switched. I have Painless switches and wiring and its been awhile since i tapped into a stock harness. Sorry I couldnt be more specific.

Barney wrote:The small red must go to a switched 12v source that remains on when cranking. Use a testlight to find and a remote push button to find a source that stays lit while the engine is being cranked. If you cnverted from duraspark I believe the red wire in the IGN harness that went to the + on the coil originally has 12v switched. I have Painless switches and wiring and its been awhile since i tapped into a stock harness. Sorry I couldnt be more specific.

Thank you I didn't think about that il check it tomorrow

Give me a call Saturday, I'll come over and help you out if you want. We will get it going!!

Thanks bud I sure appreciate that

Thanks for all the help guys i had the ignition wire ran to a wire that cut when the key was in crank position fired right off ran perfect!!

Barney wrote:Is your box wired to cut power while cranking?(happens alot) Are you getting spark while cranking?(have you checked).

If the box doesn't fire while cranking, when does it fire. After you stop cranking