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Ignition Problems

 
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LostRider04
SD1 User


Joined: 22 Oct 2007
Posts: 21
Location: Whyalla, South Australia

PostPosted: Mon Oct 22, 2007 1:38 pm    Post subject: Ignition Problems Reply with quote

Confused Hi everyone

This is my first post and sheesh have i got a major glitch with my
1979 SD1. Sad

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, Evil or Very Mad i dunno

After checking and chasing every possible wire (still cant fix it)

Then Shocked it will start and run for 3 or 4 minutes and stop dead Mad Mad
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 Very Happy Embarassed the same and the second car is a Gem. But has no aircon working.

John

Possibly something really really stuuupid Razz


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

PostPosted: Mon Oct 22, 2007 2:42 pm    Post subject: Reply with quote

SDi is the diesel rover 200!! SD1 is what we have...

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Under 4 litre engines are starter motors!!
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LostRider04
SD1 User


Joined: 22 Oct 2007
Posts: 21
Location: Whyalla, South Australia

PostPosted: Mon Oct 22, 2007 3:10 pm    Post subject: OOPs Reply with quote

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

PostPosted: Mon Oct 22, 2007 7:58 pm    Post subject: Re: Ignition Problems Reply with quote

[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.

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LostRider04
SD1 User


Joined: 22 Oct 2007
Posts: 21
Location: Whyalla, South Australia

PostPosted: Tue Oct 23, 2007 9:47 am    Post subject: Reply with quote

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

PostPosted: Tue Oct 23, 2007 11:04 am    Post subject: Reply with quote

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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LostRider04
SD1 User


Joined: 22 Oct 2007
Posts: 21
Location: Whyalla, South Australia

PostPosted: Tue Oct 23, 2007 11:21 am    Post subject: Reply with quote

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

PostPosted: Sun Nov 11, 2007 4:26 am    Post subject: Reply with quote

Very Happy 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

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LostRider04
SD1 User


Joined: 22 Oct 2007
Posts: 21
Location: Whyalla, South Australia

PostPosted: Sun Dec 16, 2007 4:45 pm    Post subject: Problem Solved Reply with quote

Hi all Very Happy

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 Evil or Very Mad

Hope you all Have a good xmas if i dont catch up with yas

John

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kiwi_sd1
SD1 User


Joined: 23 Oct 2007
Posts: 107
Location: New Zealand

PostPosted: Mon Dec 17, 2007 12:04 am    Post subject: Reply with quote

good to hear that you sorted the problem out and can enjoy the car again Smile
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HelloGeiger
SD1 User


Joined: 22 Mar 2008
Posts: 4
Location: London

PostPosted: Mon Sep 22, 2008 4:14 pm    Post subject: Reply with quote

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

PostPosted: Mon Sep 22, 2008 10:26 pm    Post subject: Reply with quote

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

PostPosted: Mon Sep 22, 2008 11:02 pm    Post subject: Reply with quote

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

PostPosted: Mon Sep 22, 2008 11:41 pm    Post subject: Reply with quote

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.

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