Bump on starter?
Thread Starter
Burning Brakes
Joined: Mar 2003
Posts: 915
Likes: 1
From: UK
Bump on starter?
Is it possible to bump the starter on a C6? For instance, if you want to get the motor at TDC? If I disconnect the coil packs, how long would the car crank for if I hit the start button?
Melting Slicks
Joined: Dec 2006
Posts: 2,694
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Engine will fire at WOT, just not right away, due to too much air. It'd hard start for a second and then BAM!, WOT. Maybe at freezing temperatures it wouldn't start, but ignition and fuel would be there, just like if you weren't touching the gas pedal. The worst thing you can do to a cold engine is starting it at WOT. By the way, that's how you clear a flooded engine, but you have to be quick to release the throttle when engine finally fires up. To provide a solution, I'd remove all spark plugs and turn over the engine manually.As a side story, I proved that theory wrong accidentally with my new BMW bike. Read the same thing, and when accidentally left the throttle pinned after installing a throttlemeister, I thought I left something disconnected because bike wouldn't fire up right away, like usual. Tried again, and after a couple of seconds more than normal, BAM! Cold engine bouncing off the rev limiter. Geez. Took me a second to recover from the 'WTF happened' moment and kill the engine. The noise from the aftermarket exhaust at WOT inside the garage scared the crap out of me. Then immediately knew what I did. Live and learn.
Last edited by JCtx; Sep 22, 2012 at 07:56 PM.
Pro
Joined: Oct 2011
Posts: 695
Likes: 94
From: NC
I did this when I did my rocker arms. I simply disconnected the single "plug in wire" on the starter solenoid. Connected a "bump" switch between this terminal and the positive post on the battery. Mine is a manual so it was in neutral and the ignition OFF! Simply bump the motor around as you wish the "old school way". Much easier than trying to get a wrench on the crank bolt. 
Racer
Joined: Oct 2007
Posts: 263
Likes: 7
From: Brownsville Texas
I did this when I did my rocker arms. I simply disconnected the single "plug in wire" on the starter solenoid. Connected a "bump" switch between this terminal and the positive post on the battery. Mine is a manual so it was in neutral and the ignition OFF! Simply bump the motor around as you wish the "old school way". Much easier than trying to get a wrench on the crank bolt.
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Pro
Joined: Oct 2011
Posts: 695
Likes: 94
From: NC
I was wondering - if you connect a "bump" switch between this plug in terminal and the positive post on the battery - this will bypass the "depress clutch pedal/ depress the brake pedal switch on these C6's and actually turn the engine over like the "old school bumps"?
A small female spade connector is all that is needed on the single prong "male" on the starter. I simply opened it up a little, this way you would not need the exact same weatherpack plug as OEM. This is an 09 LS3, I am sure all are similar if not the same.
Safety Car
Joined: Jan 2004
Posts: 4,974
Likes: 14
From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
Using the starter button to set the pistons at TDC is not the answer. It may be the cheap answer you are looking for, in which case, have at it moron.
Thread Starter
Burning Brakes
Joined: Mar 2003
Posts: 915
Likes: 1
From: UK
Smart *** maybe, but not a troll. How many posts do you have actually helping people rather than asking questions that are easily researched?
Using the starter button to set the pistons at TDC is not the answer. It may be the cheap answer you are looking for, in which case, have at it moron.
Using the starter button to set the pistons at TDC is not the answer. It may be the cheap answer you are looking for, in which case, have at it moron.
Some other helpful member before you came up with the actual answer to my question and, guess what? It didn't involve making a bump starter.
Pro
Joined: Oct 2011
Posts: 695
Likes: 94
From: NC
Safety Car
Joined: Jan 2004
Posts: 4,974
Likes: 14
From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
Well here's another tip 'don't eat yellow snow'
Safety Car
Joined: Jan 2004
Posts: 4,974
Likes: 14
From: Pinellas Park Fl
St. Jude Donor '08-'09 & '12, '14
Please respond before i_york breaks something, because I'm guessing that the 'i' stands for idiot
