Fordmods Logo

Help!! Slow Cranking on the EB XR8 

 

Page 1 of 2 [ 20 posts ] Go to page 1, 2  Next

 
 Post subject: Help!! Slow Cranking on the EB XR8
Posted: Fri Jun 11, 2010 9:32 pm 
Smokin em up
Offline
User avatar

Age: 48

Posts: 205

Joined: 8th Dec 2009

Gallery: 1 images

Ride: EB XR8, Now Blown 1977 Mini S

Location: Toowoomba
QLD, Australia

Gday all - having issues with the car slow cranking in the mornings...it is a 1991 EB SXR8 on SVI LPG(starts on petrol until at 45degs then clicks to LPG)

Hooked up the multimeter and here are the voltages:

Off - 12.69v
Acc - 12.65v
On - 12.5v but climbs to 12.69v if left for 30 secs
Cranking - drops to 9.9v for a nanosecond then to 14.6v as the engine fires...

Remains at 14.2-14.6v when running but drops when you put all accessories on and wipers/demist to 13.5v which to me seems within the normal operating range. The alternator is from a 1994 Fairmont V8(Mitsubishi 110amp unit).

I think it might be the very cool weather here in Canberra but I am concerned that the starter motor is going on me. If I stop the car then restart it...cranks normally. After a night in the garage - it is a slow crank.

What would you be suggesting I look at? The car has done 260k.
Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Fri Jun 11, 2010 9:39 pm 
Getting Side Ways
Offline

Age: 22

Posts: 613

Joined: 13th Mar 2010

Ride: EF Falcon Monti

Location: Central Coast
NSW, Australia

happenes with my au too

 

_________________

BANNED USER

Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Fri Jun 11, 2010 9:45 pm 
Getting Side Ways
Offline

Age: 34

Posts: 1166

Joined: 31st Mar 2005

Gallery: 2 images

Ride: ef falcon, el fairmont ghia

Location: Christchurch
New Zealand

happens in mine too, but think its just the battery
Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Fri Jun 11, 2010 9:48 pm 
Getting Side Ways
Offline

Age: 22

Posts: 613

Joined: 13th Mar 2010

Ride: EF Falcon Monti

Location: Central Coast
NSW, Australia

with the AU though, if i leave it out all night then go to start it at 6AM, i have to jump it as with the EF i can leave it out all night and trust it will start no problems as though the engine was just turned off. What battery do you use? in the au its one with a blue top and yellow bottom and the EF has one of those NRMA batteries

 

_________________

BANNED USER

Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Fri Jun 11, 2010 9:49 pm 
Getting Side Ways
Offline
User avatar

Age: 64

Posts: 3552

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

Cold batteries can be like that.. Check all battery connections..
Especially earth side.

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Fri Jun 11, 2010 9:51 pm 
Smokin em up
Offline
User avatar

Age: 48

Posts: 205

Joined: 8th Dec 2009

Gallery: 1 images

Ride: EB XR8, Now Blown 1977 Mini S

Location: Toowoomba
QLD, Australia

I heard also from a few of the defence APS I work with who are right into the extreme 4WD-ing that the battery can suffer from "cold battery" which when it was explained to memade sense. I thought about my garage, which is cavernous in that it could fit a couple of Kenworths in it side by side, and figured that the battery is getting cold soak and just a bit sluggish. I figure though I might add a new starter and keep the original as a spare.

Someone suggested putting a blanket on the engine which I thought was a bit extreme :D
Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Fri Jun 11, 2010 9:54 pm 
Getting Side Ways
Offline

Age: 22

Posts: 613

Joined: 13th Mar 2010

Ride: EF Falcon Monti

Location: Central Coast
NSW, Australia

CPOCSM wrote:
I heard also from a few of the defence APS I work with who are right into the extreme 4WD-ing that the battery can suffer from "cold battery" which when it was explained to memade sense. I thought about my garage, which is cavernous in that it could fit a couple of Kenworths in it side by side, and figured that the battery is getting cold soak and just a bit sluggish. I figure though I might add a new starter and keep the original as a spare.

Someone suggested putting a blanket on the engine which I thought was a bit extreme :D


well at least you get the additional fire :lol:

if you can, get hold of one of those blue nrma batteries and see how that goes as my ef has one, leave it out overnight, perfect, start normally if car was just turned off

AU on the other hand, like said about has a different brand (century :? ) and that f**k needs a jump every morning

 

_________________

BANNED USER

Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Sat Jun 12, 2010 1:19 am 
Stock as a Rock
Offline
User avatar

Posts: 108

Joined: 12th Jun 2010

Ride: El falcon

Location: melbourne
VIC, Australia

have you checked the liquid levels in the battery cells?

 

_________________

I enjoy the symphony of mechanical harmony, :lol:

EL build thread
Turbo DOHC - AU front suspension - AU IRS - T56 - xr kit
the-garage-f53/bbqburners-daily-turned-toy-d-t93182.html

Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Sat Jun 12, 2010 9:53 am 
Getting Side Ways
Offline

Posts: 699

Joined: 1st Jan 2006

Ride: Lots, all Fords

Location: Hamilton
New Zealand

Take the car into an Auto Electrical shop and have them test the battery with a carbon pile. This simulates electrical load and will tell you if the battery is the problem. Sparkies usually do this for free, hoping you will buy their battery if yours is at the end of it's life.

If it's not the battery or cables, it may be the brushes in the starter. They reach a length where their contact with the comutator isn't very good and it takes more current to start the engine. This appears like a battery output problem.

 

_________________

XA Faimont 351C, AU2 XR8 Manual 5.0, DA LTD 5.0, Mk1 Capri 5.0, 1995 Mustang 5.0, EF2 XR8 Manual, EF2 Fairmont Ghia 5.0, AU3 XR8 Auto, AU2 XR8 Auto, AU2 XR8 Manual Ute, TE Cortina 5.0 Manual, DU LTD 5.0 soon to be manual

Last edited by xafalcon on Sun Jun 13, 2010 7:33 pm, edited 1 time in total.

Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Sun Jun 13, 2010 11:03 am 
Moderator
Offline

Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

sounds like it could be a tyred starter motor, and the cold weather just makes it worse??
Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Sat Jun 19, 2010 6:53 pm 
Tyre Shredder
Offline
User avatar

Posts: 326

Joined: 18th Feb 2007

Ride: ED GHIA V8

Location: ford town
NSW, Australia

Same problems here with LPG cold starts, but have found with a jumper pack it will fire in half a turn then with the jump pack off will take 10 or so seconds to start. Seems the ecu is not getting enough juice to fire the engine :?

Aternator is charging fine and battery has heaps of life left.

Need to keep a jumper pack in the boot :lol:

 

_________________

Black ED Ghia
V8 with lpg
Full leather
waitng on sunroof..

Image

Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Sat Jun 19, 2010 7:04 pm 
Moderator
Offline

Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

lethal EA wrote:
Same problems here with LPG cold starts, but have found with a jumper pack it will fire in half a turn then with the jump pack off will take 10 or so seconds to start. Seems the ecu is not getting enough juice to fire the engine :?

Aternator is charging fine and battery has heaps of life left.

Need to keep a jumper pack in the boot :lol:


how many cca is your battery???
Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Sat Jun 19, 2010 8:33 pm 
Tyre Shredder
Offline
User avatar

Posts: 326

Joined: 18th Feb 2007

Ride: ED GHIA V8

Location: ford town
NSW, Australia

Heavy Duty Century 550-560 CCA.

 

_________________

Black ED Ghia
V8 with lpg
Full leather
waitng on sunroof..

Image

Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Mon Jul 05, 2010 2:56 pm 
Getting Side Ways
Offline
User avatar

Posts: 633

Joined: 21st Nov 2008

Location: Melbourne
VIC, Australia

iv just had a very similar problem with an eb v8 that has 261k kms on it, slow cranking then sometimes no cranking at all, alternator and battery tested fine.

removed the starter motor and tested on the bench to find it was getting jammed up.
disassembled starter motor to find the internals full of s**t and 2 of the 4 brushes getting low.
cleaned the brush pack with gunwash and an air blower.
"adjusted" the 2 low brushes by stretching the springs out slightly.
greased the starter gear, reassembled starter motor and is now starting like new.

my only problem is 2 of the 4 brushes are low..

does anyone know where i can buy the brush pack for the eb v8 motorcraft starter motor?
either from a reputable site in the US or somewhere here in Aus?

cheers guys
Top
 Profile  
 
 
 Post subject: Re: Help!! Slow Cranking on the EB XR8
Posted: Tue Aug 03, 2010 12:59 pm 
Smokin em up
Offline
User avatar

Age: 48

Posts: 205

Joined: 8th Dec 2009

Gallery: 1 images

Ride: EB XR8, Now Blown 1977 Mini S

Location: Toowoomba
QLD, Australia

Well I replaced the battery as I was getting the one "click" when I turned the key to start the car. I replaced relays, bashed the area adjacent to the handbrake, tested voltage and the likes - to no avail. I reckon it is he starter for sure asall theother electrical stuff works fine. I reckon the water that leaked onto the starter from the throttle body heating(pinhole leak just before I left on 5 weeks leave...) has caused it to short in some way. I am now going to remove the starter and see what the go is.

On this, how can I connect up to the starter on the bench to test continuity and if indeed the motor will engage at all? I am about to light a fire under it as I am over the poop that is Ford and the dumb, outdated and over-priced parts the factory tries to peddle you...

Hooroo
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 2  [ 20 posts ]  Go to page 1, 2  Next

Who is online

Users browsing this forum: No registered users and 11 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Thu Dec 14, 2017 4:11 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names