Starter motor problem
Discussion
Came to start the Canam for a run today and and the car started OK getting it out of the garage. Did a few chores like checking fluids etc and went to start. Motor spins but pinion does not engage.
Any ideas? I'm not familiar with inner workings. All connections appear in place and tight.
Any ideas? I'm not familiar with inner workings. All connections appear in place and tight.
V-2f0ue said:
Came to start the Canam for a run today and and the car started OK getting it out of the garage. Did a few chores like checking fluids etc and went to start. Motor spins but pinion does not engage.
Any ideas? I'm not familiar with inner workings. All connections appear in place and tight.
What gearbox (Specifically) and engine do you have?Any ideas? I'm not familiar with inner workings. All connections appear in place and tight.
Two things can cause this: either the starter is spinning and the starter gear is not moving far enough forward to engage the ring gear which is either mounted on the flywheel or pressure plate. Second possibility is the starter gear is moving forward to the correct position and teeth are missing from the ring gear. Second one first, with the engine off, put the car in gear, roll it forward a foot and engage the starter if it starts you have a ring gear failure, replace the ring gear. If that does not work remove the starter and see if the starter gear is free to move forward clean it, lube the mechanism and reinstall the starter. Try to start the car again if it starts all is good, if not remove the starter and have it serviced. Review the thread I wrote which is back about one page on this web site. The tittle is starter, written by Rowdy Renault. Lee
Pre-engage starters don't spin up until the solenoid has driven the pinion forward to engage the ring gear.
As has been stated the motor is spinning therefor:-
All connections on the starter have to be complete.
The pinion has to be forward.
Either the starter is loose.
The pinion is stripped.
The ring gear is stripped.
Tests are check starter is bolted in.
As Lee said rock the car in gear to move the engine away from TDC then try starting. If it turns over then the ring gear has stripped at the TDC point.
If that test is inconclusive take the starter off and inspect the pinion.
Steve
As has been stated the motor is spinning therefor:-
All connections on the starter have to be complete.
The pinion has to be forward.
Either the starter is loose.
The pinion is stripped.
The ring gear is stripped.
Tests are check starter is bolted in.
As Lee said rock the car in gear to move the engine away from TDC then try starting. If it turns over then the ring gear has stripped at the TDC point.
If that test is inconclusive take the starter off and inspect the pinion.
Steve
Thx Steve, that was my understanding as to operation of the starter. It is spinning but did not expect that the loss of teeth on the ring gear was a possibility.
Thx Lee for pointing out the starter topic. Search was not working for me when I posted.
Will get the starter off again and look at the gear. I should have looked at the ring gear but didn't! Sounds like a painful job replacing the ring gear, what with gearbox out and all.
Thx Lee for pointing out the starter topic. Search was not working for me when I posted.
Will get the starter off again and look at the gear. I should have looked at the ring gear but didn't! Sounds like a painful job replacing the ring gear, what with gearbox out and all.
So further info re problem. Taken starter off and the ring gear is in reasonable condition. Pinion on starter is fine.
Diagnosing further, the fault is sheared gear in starter gearbox. Starter shaft moves out under battery power OK and the motor runs when shaft extended. The pinion seems to turn under starter motor power but I could stop the pinion spinning with a gloved hand. (carefully! but it just had to be that)
So new starter required. Will look for a more powerful one than the original as it was sometimes struggling to spin the engine. Any suggestions, Lee suggested the GT3 option?
Diagnosing further, the fault is sheared gear in starter gearbox. Starter shaft moves out under battery power OK and the motor runs when shaft extended. The pinion seems to turn under starter motor power but I could stop the pinion spinning with a gloved hand. (carefully! but it just had to be that)
So new starter required. Will look for a more powerful one than the original as it was sometimes struggling to spin the engine. Any suggestions, Lee suggested the GT3 option?
Thanks for the thoughts about the problem.
The original 2004 starter supplied by Ultima had developed an internal problem. I sent the unit to WOSP so that they could supply a new unit that would fit. They diagnosed the fault in the old unit and I could have had it repaired by them. In fact, I chose a new unit 40% more power (1.4KW) and it's great. Fitted perfectly. The old starter never turned over the engine like this one even when the battery was new.
It was suggested on here that beefy cabling would help. I had installed heavy cabling from the battery for the negative to the starter mounting bolt as part of the original build anyway so that was not the problem. And I had fitted a larger battery PC1100 than the PC625 that was spec'ed.
The original 2004 starter supplied by Ultima had developed an internal problem. I sent the unit to WOSP so that they could supply a new unit that would fit. They diagnosed the fault in the old unit and I could have had it repaired by them. In fact, I chose a new unit 40% more power (1.4KW) and it's great. Fitted perfectly. The old starter never turned over the engine like this one even when the battery was new.
It was suggested on here that beefy cabling would help. I had installed heavy cabling from the battery for the negative to the starter mounting bolt as part of the original build anyway so that was not the problem. And I had fitted a larger battery PC1100 than the PC625 that was spec'ed.
Thanks for the thoughts about the problem.
The original 2004 starter supplied by Ultima had developed an internal problem. I sent the unit to WOSP so that they could supply a new unit that would fit. They diagnosed the fault in the old unit and I could have had it repaired by them. In fact, I chose a new unit 40% more power (1.4KW) and it's great. Fitted perfectly. The old starter never turned over the engine like this one even when the battery was new.
It was suggested on here that beefy cabling would help. I had installed heavy cabling from the battery for the negative to the starter mounting bolt as part of the original build anyway so that was not the problem. And I had fitted a larger battery PC1100 than the PC625 that was spec'ed.
The original 2004 starter supplied by Ultima had developed an internal problem. I sent the unit to WOSP so that they could supply a new unit that would fit. They diagnosed the fault in the old unit and I could have had it repaired by them. In fact, I chose a new unit 40% more power (1.4KW) and it's great. Fitted perfectly. The old starter never turned over the engine like this one even when the battery was new.
It was suggested on here that beefy cabling would help. I had installed heavy cabling from the battery for the negative to the starter mounting bolt as part of the original build anyway so that was not the problem. And I had fitted a larger battery PC1100 than the PC625 that was spec'ed.
V-2f0ue said:
Thanks for the thoughts about the problem.
The original 2004 starter supplied by Ultima had developed an internal problem. I sent the unit to WOSP so that they could supply a new unit that would fit. They diagnosed the fault in the old unit and I could have had it repaired by them. In fact, I chose a new unit 40% more power (1.4KW) and it's great. Fitted perfectly. The old starter never turned over the engine like this one even when the battery was new.
It was suggested on here that beefy cabling would help. I had installed heavy cabling from the battery for the negative to the starter mounting bolt as part of the original build anyway so that was not the problem. And I had fitted a larger battery PC1100 than the PC625 that was spec'ed.
Can I ask what you paid for your updated starter?The original 2004 starter supplied by Ultima had developed an internal problem. I sent the unit to WOSP so that they could supply a new unit that would fit. They diagnosed the fault in the old unit and I could have had it repaired by them. In fact, I chose a new unit 40% more power (1.4KW) and it's great. Fitted perfectly. The old starter never turned over the engine like this one even when the battery was new.
It was suggested on here that beefy cabling would help. I had installed heavy cabling from the battery for the negative to the starter mounting bolt as part of the original build anyway so that was not the problem. And I had fitted a larger battery PC1100 than the PC625 that was spec'ed.
These are hard to beat, no long nose alternative though, but all others.
http://www.powerlite-units.com/products/stater-mot...
http://www.powerlite-units.com/products/stater-mot...
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