starter motor busted?

[dorikin]

I usually like to use jumper cables for these tests.

If you have power going to the BLK/WHT wire when cranking than there's no issues with your ignition switch/relay/fuses.

[vinnY]

well you were right, ignition is fine

I heard the starter motor catch and spin a bit but it stopped and just started to have single ticks again
it's as if it has enough juice to make the solenoid function but not enough juice to crank it over

getting a constant 12.72v off and it stops to about 11.3v on start now

so for the out of car tests, it's basically applying the neg terminal where the 12v line usually goes and touching the pos terminal to the starter solenoid to see if it makes the starter pinion pop out?

[vinnY]

wtf just did some testing and it appears my braided clutch line gets super hot while cranking
but it's not touching anything electrical related

[bennjamin]

wtf just did some testing and it appears my braided clutch line gets super hot while cranking
but it's not touching anything electrical related

Well it is directly connected to the slave cylinder which is connected to the gearbox which is connected to the starter ! So it IS part of the ground circuit.

[dorikin]

well you were right, ignition is fine

I heard the starter motor catch and spin a bit but it stopped and just started to have single ticks again
it's as if it has enough juice to make the solenoid function but not enough juice to crank it over

getting a constant 12.72v off and it stops to about 11.3v on start now

so for the out of car tests, it's basically applying the neg terminal where the 12v line usually goes and touching the pos terminal to the starter solenoid to see if it makes the starter pinion pop out?

No that's not right. For the Pull-in Coil Test, positive 12v goes to Solenoid switch and negative goes to the body of the starter motor and the solenoid ground.

Use this to help you:




Also check the ground strap from the gearbox to the chassis is not loose, damaged or corroded.

[vinnY]

benj; I thought as much, but the thing is only the ss braided hose gets hot, the hard lines aren't affected
dori; ah thanks for that, will check it out when there's light again

all grounding locations seem to be secure, grounds all around seem to be clean and functional too so it's totally got me stumped

[Lukey]

if the plunger isnt staying out it could be the hold in coil?

[vinnY]

well it sounds like the gear comes out but doesn't spin

Actually I'd like to clarify that. The gear comes out and every now and then will give half a whir then retire to just ticking
This is all tested with the starter installed though, not out of the car

[vinnY]

so here's a development.. I test the starter solenoid signal cable.. there's continuity to the gearbox bellhousing/engine mount

[Jomsy]

Did you check the brushes in the starter aswell as the contacts, they would also cause it to click but not spin

[vinnY]

figured the whole cranking while hitting the starter motor's(tried two!) would eliminate that

just occurred to me, am I supposed to get continuity to ground at all with the starter motor solenoid wire?

[najdi]

U got voltage drop which has nothing to do with the starter but as for the starter remove it..connect a jumpstarter to it, neg goes on frame most likely a corner where the bolt goes n the pos on the bolt on the head where it usualky connects now expose to ends of a wire place 1 on the pos bolt n the other on the switch/connection/contact make sure u got ur foot on it this method inturn bridges it to see if the gear on the shaft engages or wat not..if u want send me a foto n il help