ZT CDT puzzling starter problem

jc82 · 12th March 2021, 14:58

Hi all.

I'm getting a strong click from my starter solenoid but it refuses to turn over. I've got 12.4 volts between the battery terminals, no voltage drop at the clamps, 12.4 volts at the constant live on the starter and good continuity when putting my multimeter between the battery and starter casing. However I'm only getting 11.7 volts at the ignition spade connector when turning the key. Should that still be enough voltage to turn the starter or is the ignition connector/cable faulty?

Thanks in advance.
John

COLVERT · 12th March 2021, 15:10

The contacts in the starter solenoid have burnt away. Easy job to replace them. Arctic has a --How-To--- on the form.

roverbarmy · 12th March 2021, 15:31

Starter repair kits needed?

jc82 · 12th March 2021, 15:57

Thanks for the replies!

I've ordered a kit and had a sneak preview at the fitting procedure, looks not too bad.

Thanks again!

trikey · 12th March 2021, 21:44

Quote:

Originally Posted by COLVERT

Trikey has a --How-To--- on the form.

Think you will find it's Arctic's how to

jc82 · 16th March 2021, 17:11

New plunger and contacts fitted earlier and it's like a brand new starter!

Just before it failed I did notice a rattling noise coming from it a few times after releasing the key. Judging by the state of the plunger ring and contacts the rattling must've been the armature and pinion jumping back and forward whilst turning the engine.

Thanks again for everyone's help!

12th March 2021, 14:58	#1
jc82 Newbie MG ZT-T Join Date: Jan 2021 Location: Musselburgh Posts: 8 Thanks: 0 Thanked 2 Times in 2 Posts	ZT CDT puzzling starter problem Hi all. I'm getting a strong click from my starter solenoid but it refuses to turn over. I've got 12.4 volts between the battery terminals, no voltage drop at the clamps, 12.4 volts at the constant live on the starter and good continuity when putting my multimeter between the battery and starter casing. However I'm only getting 11.7 volts at the ignition spade connector when turning the key. Should that still be enough voltage to turn the starter or is the ignition connector/cable faulty? Thanks in advance. John

12th March 2021, 15:10	#2
COLVERT This is my second home R75 Saloon. Join Date: Feb 2009 Location: France/or Devon. Posts: 14,003 Thanks: 3,851 Thanked 2,167 Times in 1,816 Posts	The contacts in the starter solenoid have burnt away. Easy job to replace them. Arctic has a --How-To--- on the form. Last edited by COLVERT; 12th March 2021 at 21:51..

12th March 2021, 15:31	#3
roverbarmy This is my second home Roverless + 1.7D Sportage Join Date: Aug 2014 Location: East Norfolk Posts: 7,050 Thanks: 729 Thanked 2,021 Times in 1,449 Posts	Starter repair kits needed? __________________ Oil in my veins!

12th March 2021, 15:57	#4
jc82 Newbie MG ZT-T Join Date: Jan 2021 Location: Musselburgh Posts: 8 Thanks: 0 Thanked 2 Times in 2 Posts	Thanks for the replies! I've ordered a kit and had a sneak preview at the fitting procedure, looks not too bad. Thanks again!

16th March 2021, 17:11	#6
jc82 Newbie MG ZT-T Join Date: Jan 2021 Location: Musselburgh Posts: 8 Thanks: 0 Thanked 2 Times in 2 Posts	New plunger and contacts fitted earlier and it's like a brand new starter! Just before it failed I did notice a rattling noise coming from it a few times after releasing the key. Judging by the state of the plunger ring and contacts the rattling must've been the armature and pinion jumping back and forward whilst turning the engine. Thanks again for everyone's help!