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LostRider04 SD1 User

Joined: 22 Oct 2007 Posts: 21 Location: Whyalla, South Australia
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Posted: Mon Oct 22, 2007 1:38 pm Post subject: Ignition Problems |
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 Hi everyone
This is my first post and sheesh have i got a major glitch with my
1979 SD1.
Ok what happens is it has no spark and when turning the ignition to the off
spot......it will kick back with spark....(ok changed the ignition switch x 3 times)
Okay changed coil, electronic dizzy, ballast resistor,  i dunno
After checking and chasing every possible wire (still cant fix it)
Then  it will start and run for 3 or 4 minutes and stop dead
same rigmorol all over again.
The fuel pump is working fine too........
I am just about to register this car and do a 1400km trip in it.
All available suggestions will be used and looked into.
The jerrycan and a box of matches is on hand otherwise.
By the way I have 2 SD1's  the same and the second car is a Gem. But has no aircon working.
John
Possibly something really really stuuupid 
Last edited by LostRider04 on Mon Oct 22, 2007 3:11 pm; edited 1 time in total |
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Lehto SD1 Regular

Joined: 12 Aug 2006 Posts: 550 Location: Finland
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Posted: Mon Oct 22, 2007 2:42 pm Post subject: |
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SDi is the diesel rover 200!! SD1 is what we have... _________________ Owner of 3 Rovers and 1 MG.
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Password: allthings_sd1
Under 4 litre engines are starter motors!! |
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LostRider04 SD1 User

Joined: 22 Oct 2007 Posts: 21 Location: Whyalla, South Australia
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Posted: Mon Oct 22, 2007 3:10 pm Post subject: OOPs |
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Ok thx Bloke
I'll change the posts |
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ramon alban SD1 Regular

Joined: 14 Feb 2006 Posts: 478 Location: Bedford UK
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Posted: Mon Oct 22, 2007 7:58 pm Post subject: Re: Ignition Problems |
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[quote="LostRider04]
Ok what happens is it has no spark and when turning the ignition to the off
spot......it will kick back with spark....(ok changed the ignition switch x 3 times)
Roo, If your ignition amplifier or its wiring, was shorting to ground somehow, breaking the circuit at the ign switch would induce a spark, methinks.
Then it will start and run for 3 or 4 minutes and stop dead same rigmorol all over again.
Weird, but would indicate an intermittant problem with amplifier or wiring or something thereabouts. Perhaps the coil, perhaps the suppressor capacitor, perhaps the hall effect transistor in the dissy.
The amplifiers generally play up before failing permanently and have a typical lifetime 60 to 100k imperial miles. More than that, they are are on borrowed time.
[/quote]
PS. dont worry abou your car being non U. If the name and model contain the characters ROVER SD1, jobs a goodun. _________________ Ramon
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LostRider04 SD1 User

Joined: 22 Oct 2007 Posts: 21 Location: Whyalla, South Australia
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Posted: Tue Oct 23, 2007 9:47 am Post subject: |
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I forgot to mention that it is a carb model and when you talk about the ignition amplifier........... I'm at a loss
All i Know of is the Ballast resistor (aluminium Block bolted to the shock tower and the coil. (these i have replaced)..
I have a dizzy out of a series 2 here which (35DM8) I am going to put in it
to see if it is the dizzy. (as there is a bit of wear in the shaft anyways).
But I didnt think it could have been that.
I dunno..........I was talkin to a mate and he suggested running a new wire from the ignition switch to the coil to see if there is not a fault in the loom somewhere.
John |
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ramon alban SD1 Regular

Joined: 14 Feb 2006 Posts: 478 Location: Bedford UK
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Posted: Tue Oct 23, 2007 11:04 am Post subject: |
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| LostRider04 wrote: | I forgot to mention that it is a carb model and when you talk about the ignition amplifier........... I'm at a loss
All i Know of is the Ballast resistor (aluminium Block bolted to the shock tower and the coil. (these i have replaced)..
I have a dizzy out of a series 2 here which (35DM8) I am going to put in it
to see if it is the dizzy. (as there is a bit of wear in the shaft anyways).
But I didnt think it could have been that.
I dunno..........I was talkin to a mate and he suggested running a new wire from the ignition switch to the coil to see if there is not a fault in the loom somewhere.
John |
John, Not familiar with carb cars and there are several ign systems, but I thought the amplifier was in the aluminium box too on some systems.
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_________________ Ramon
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LostRider04 SD1 User

Joined: 22 Oct 2007 Posts: 21 Location: Whyalla, South Australia
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Posted: Tue Oct 23, 2007 11:21 am Post subject: |
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Yeah I Dunno either..........
I gues ya heard the saying RTFM
I might check mine and see if it mentions it. But the manual only covers 1977 - 1981 so it may not even mention an amplifier.
I'll check it out now and see what it says.
John |
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LostRider04 SD1 User

Joined: 22 Oct 2007 Posts: 21 Location: Whyalla, South Australia
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Posted: Sun Nov 11, 2007 4:26 am Post subject: |
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 Hi Everyone....
After much research (RTFM) I have discovered the problem
There is a yellow/white wire which runs from the Starter Solenoid to the Ballast Resistor ( This seems to have something to do with the safety cutoff feature). I disconnected this wire from the ballast resistor and voila.........Problem solved.
My thoughts are that if the solenoid is getting a bit long in the tooth.......the contacts in the solenoid tend to maybe corrode or wear away and and when the engine is cranking the power is non-existent to the coil. When releasing the ignition key this then supplies a surge to the coil allowing it to start but once the charge is gone the motor will not start.
If you are electrically minded your thoughts would be appreciated.
Thanx John _________________ There are only two things in life that make it worth Livin'.........Fine tuned SD1s and A Good Hearted Woman  |
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LostRider04 SD1 User

Joined: 22 Oct 2007 Posts: 21 Location: Whyalla, South Australia
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Posted: Sun Dec 16, 2007 4:45 pm Post subject: Problem Solved |
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Hi all
I have solved the problem of the dizzy and the car is goin like a charm.
I replaced the distributor all together with a later model 35DM8
and used an after market module. Goodbye to Ballast Resistor and all un necessaries
Hope you all Have a good xmas if i dont catch up with yas
John _________________ There are only two things in life that make it worth Livin'.........Fine tuned SD1s and A Good Hearted Woman  |
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kiwi_sd1 SD1 User
Joined: 23 Oct 2007 Posts: 107 Location: New Zealand
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HelloGeiger SD1 User
Joined: 22 Mar 2008 Posts: 4 Location: London
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Posted: Mon Sep 22, 2008 4:14 pm Post subject: |
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Hello all,
I've got a similar problem as described above. The starter motor turns the engine but there is no spark getting to the distributor. I've changed the coil and that made no difference so I've got a replacement ballast resistor. The only problem is I can't locate the original to replace it! I've looked all over following the wires from ignition into engine bay and to the coil. Can someone enlghten me?! It's a Vitesse.
Thanks in advance! |
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Punx0r SD1 Regular
Joined: 05 Nov 2006 Posts: 252
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Posted: Mon Sep 22, 2008 10:26 pm Post subject: |
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The vitesse coil runs 12v at all times so there isn't a ballast resistor as such. If memory serves there is a small resistor that protects the ecu, I think it's for the RPM signal from the distributor?
Is your ignition module (ignitor) working? If it's kaput then the coil won't fire. I'm not sure, but you might be able to detect this by looking for voltage pulses at the coil with a multimeter. |
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HelloGeiger SD1 User
Joined: 22 Mar 2008 Posts: 4 Location: London
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Posted: Mon Sep 22, 2008 11:02 pm Post subject: |
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Hmm, well that might explain my difficulty then! That said Rimmers are selling ballast resistors for the efi engine...
I'll try and get hold of a voltage meter and see if that offers any clues.
Cheers |
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ramon alban SD1 Regular

Joined: 14 Feb 2006 Posts: 478 Location: Bedford UK
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Posted: Mon Sep 22, 2008 11:41 pm Post subject: |
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| HelloGeiger wrote: | Hello all,
I've got a similar problem as described above. The starter motor turns the engine but there is no spark getting to the distributor. I've changed the coil and that made no difference so I've got a replacement ballast resistor. The only problem is I can't locate the original to replace it! I've looked all over following the wires from ignition into engine bay and to the coil. Can someone enlghten me?! It's a Vitesse.
Thanks in advance! |
Geiger, I always think it best to start a new thread for new problems, but first of all read this.
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So there is no ballast resistor used in the coil ignition/starter circuit of the vitesse but a misnamed trigger resistor as shown in this typical cct diag that tells the ECU that the engine is running.
Now as to your problem
if no spark comes from the coil you need to check for battery voltage at coil positive, and a pulsing voltage at coil negative.
if no pulsing voltage, suspect the dizzy hall effect transistor or the amplifier.
If there is a pulsing voltage, the the coil may be shot. _________________ Ramon
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