Welcome to the Australian Ford Forums forum.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and inserts advertising. By joining our free community you will have access to post topics, communicate privately with other members, respond to polls, upload content and access many other special features without post based advertising banners. Registration is simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Please Note: All new registrations go through a manual approval queue to keep spammers out. This is checked twice each day so there will be a delay before your registration is activated.

Go Back   Australian Ford Forums > Club and Speciality Forums > Forum Community Car Clubs > AU Falcon.com.au

Reply
 
Thread Tools Display Modes
Old 06-08-2010, 06:31 AM   #1
dutchy805
Dutchy805
 
Join Date: Jan 2009
Location: Gold Coast
Posts: 35
Default Engine starting mystery???

A few weeks ago in Murwillumbah I helped a guy to start his Falcon which I heard cranking twice with no indication of spark. When I noticed the vehicle was a manual I told the driver to put it in first, let the clutch out and turn the key after which, I warned him, the car would move forward, which it did. I intended this action to simulate clutch starting however almost immediately after the car started rolling the engine started and off he drove. My question is - why did the engine start? What difference did being in gear and rolling make to the ignition system? Some years ago in Melbourne I did the same with a woman driving a Fiat which had stalled and blocked both lanes at peak time and I intended this action to just get her car off the road but it's engine started also.

dutchy805 is offline   Reply With Quote Multi-Quote with this Post
Old 06-08-2010, 06:33 AM   #2
The Monty
Just slidin'
 
The Monty's Avatar
 
Join Date: Sep 2005
Location: Brisvegas
Posts: 7,791
Default

The battery was flat.
__________________
MD Mondeo - For the family
NP Pajero - For the adventure
The Monty is offline   Reply With Quote Multi-Quote with this Post
Old 06-08-2010, 08:12 AM   #3
JK EX CHASER
Formally kotevski22
 
JK EX CHASER's Avatar
 
Join Date: Feb 2010
Location: Shellharbour
Posts: 697
Default

Not enough amps and volts in the battery to crank and have enough to fire the spark plugs as Monty said flat battery.The engine started because when you put the ignition on and you push the car in gear it turns the engine with the wheels instead of the starter motor.The spark is given from the battery and the alternator to start the engine.Next time try using second gear it turns the motor easier because of the ratio in the gear box.
JK EX CHASER is offline   Reply With Quote Multi-Quote with this Post
Old 06-08-2010, 11:04 AM   #4
robbyj
Rob
 
robbyj's Avatar
 
Join Date: Jan 2010
Location: VN Capital
Posts: 1,584
Default

Quote:
Originally Posted by JK EX CHASER
Not enough amps and volts in the battery to crank and have enough to fire the spark plugs as Monty said flat battery.The engine started because when you put the ignition on and you push the car in gear it turns the engine with the wheels instead of the starter motor.The spark is given from the battery and the alternator to start the engine.Next time try using second gear it turns the motor easier because of the ratio in the gear box.
Exactly right. Went spotlighting last night, and after fetching a rabbit we came back to the old Suzuki realizing we left the lights and spotty on.. bit of a jog behind the car never hurt anyone.
__________________
99 liquid silver AU Classic -Sold
Supercharged Nissan 350z 280rwkw
Blueprint series 3 AU V8 manual
robbyj is offline   Reply With Quote Multi-Quote with this Post
Old 06-08-2010, 11:53 AM   #5
Mr Hardware
Flairs - Truckers Delight
 
Mr Hardware's Avatar
 
Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
Tech Writer: Recognition for the technical writers of AFF - Issue reason: The excellent how to on LPG jet cleaning. 
Default

Quote:
Originally Posted by bobuleh
bit of a jog behind the car never hurt anyone.
you sure?
__________________
Current: Silhouette Black 2007 SY Ford Territory TX RWD 7-seater "Black Banger"
2006-2016: Regency Red 2000 AUII Ford Falcon Forte Automatic Sedan Tickford LPG "Millennium Falcon"
Mr Hardware is offline   Reply With Quote Multi-Quote with this Post
Old 06-08-2010, 11:57 AM   #6
robbyj
Rob
 
robbyj's Avatar
 
Join Date: Jan 2010
Location: VN Capital
Posts: 1,584
Default

HAHAHA... was that ever going to work?
they didn't get hurt tho.. o.O
__________________
99 liquid silver AU Classic -Sold
Supercharged Nissan 350z 280rwkw
Blueprint series 3 AU V8 manual
robbyj is offline   Reply With Quote Multi-Quote with this Post
Old 07-08-2010, 12:18 AM   #7
diatribal08
Regular Member
 
diatribal08's Avatar
 
Join Date: Jul 2009
Location: Adelaide
Posts: 107
Default

Quote:
Originally Posted by Mr Hardware
you sure?
bwaahhaahhhah rolmfao
diatribal08 is offline   Reply With Quote Multi-Quote with this Post
Old 07-08-2010, 03:56 AM   #8
JC
Miami Pilot
Donating Member2
 
JC's Avatar
 
Join Date: Jan 2005
Location: ACT
Posts: 21,703
Tech Writer: Recognition for the technical writers of AFF - Issue reason: Writing tech articles 
Default

I think dutchy is saying that the car moved foward, in gear, while cranking the engine. Not a roll start, as in get the car moving, in gear, with foot on clutch then pop the clutch to start it, but a key in-gear start.

dutchy, no idea why this worked when starting out of gear wouldn't.
__________________
-----------------------------------------------------------------
The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb)
1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs).
Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s

Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings

FPV 335 build stats: <click here>

Ford Performance Club ACT
JC is offline   Reply With Quote Multi-Quote with this Post
Old 07-08-2010, 04:58 PM   #9
AMB
FF.Com.Au Hardcore
 
Join Date: Feb 2008
Location: Geelong, Victoria
Posts: 4,440
Technical Contributor: For members who share their technical expertise. - Issue reason: Always has a helpful answer in the technical sections, wether it's giving information on a simple diagnosis with a small issue, Helping someone fix their car if they are stuck on removing/installing something, or just need information on what works how. 
Default

Yeh that's what he's saying JC. Put it in gear, no clutch, turn the key. Bunny hop along until it starts.
AMB is online now   Reply With Quote Multi-Quote with this Post
Old 07-08-2010, 05:00 PM   #10
KR1STO
Just another mock-up..
 
KR1STO's Avatar
 
Join Date: Sep 2006
Location: In an AU Fairlane somewhere...
Posts: 9,966
Default

hahaha.. crack up of a vid Mr Hardware!!
__________________
Desire isn't driven by the heart, the mind or the wallet.
Desire comes from another place.
It's created by the smell of burnt fuel under full throttle and the look a car gives you when you're washing it alone at night...

see my car here:
Built my own TL50!!!

[SIGPIC][/SIGPIC]
KR1STO is offline   Reply With Quote Multi-Quote with this Post
Old 07-08-2010, 05:26 PM   #11
AMB
FF.Com.Au Hardcore
 
Join Date: Feb 2008
Location: Geelong, Victoria
Posts: 4,440
Technical Contributor: For members who share their technical expertise. - Issue reason: Always has a helpful answer in the technical sections, wether it's giving information on a simple diagnosis with a small issue, Helping someone fix their car if they are stuck on removing/installing something, or just need information on what works how. 
Default

Quote:
Originally Posted by KR1STO
hahaha.. crack up of a vid Mr Hardware!!
Yeh total crack up. looks like he's just replaced all front panels after a front end collision, now its just a short trip to the paint shop - "you hop in love, we'll all push you up the ramps". Watch the bonnet pop up, its totalled again.
AMB is online now   Reply With Quote Multi-Quote with this Post
Old 07-08-2010, 05:43 PM   #12
Racecraft
they call me Tibbo
 
Racecraft's Avatar
 
Join Date: Dec 2004
Location: Brisbane
Posts: 6,163
Default

Quote:
Originally Posted by JC
I think dutchy is saying that the car moved foward, in gear, while cranking the engine. Not a roll start, as in get the car moving, in gear, with foot on clutch then pop the clutch to start it, but a key in-gear start.

dutchy, no idea why this worked when starting out of gear wouldn't.
compression start imho.... enough oomph for a spark then bang... it is how i start my dune buggy every time, dumping the clutch= compression lock up, drag me around the paddock for a week just bum dragging locked rear wheels. towing me in gear while engine putts along waiting for spark to ignite fuel = start
__________________

Racecraft is offline   Reply With Quote Multi-Quote with this Post
Reply


Forum Jump


All times are GMT +11. The time now is 12:23 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL