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How To: Overhaul starter motor contacts


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How to overhaul starter motor contacts

PDF Version - http://www.mkivsupra.net/vbb/attachment.php?attachmentid=105239&stc=1&d=1265988279

 

Ok this is my how to overhaul your starter contacts:

 

1. jack up the car and support safely on axle stands.

 

2. diconnect the earth terminal of the battery (make sure you know your radio code)

 

3. to the nearside of the car at the back of the engine you will find your starter motor(just before the gearbox)

 

4. there will be an electrical connector and a thick cable going to a 14mm nut on the starter, Remove both.

 

5. you will see one of the bolts that hold the starter in, the other is a bit more tricky, it is located just above and to the right and has a bracket attached(you will see this with a torch or leadlight)

 

6. using a long exstention bar about 12-18 inches long and a 3/8 drive rachet take a 14mm wobbly end socket or use a normal socket and a universal joint adapter and going in from just above the gearbox you should get on the bolt quite easy. try to undo the bolts while pulling the starter backwards so as not to take the bolts out of the bellhousing.

 

7. you will now have the starter out and ready for overhauling. ther are three 7mm nuts on the starter undo these carefuly as there is a sprung loaded throw in switch in there that you have to take out(this just slides out).

 

8. now you will see the contacts, on the outside of the starter there will be a wire connecting the starter to the solenoid, remove the nut and move the wire out of the way. now you are ready to take one side apart, undo the nut that holds the contact in place and study how it comes apart!!! replace the old parts with the new, do one side at a time so you don't get the parts mixed up.

 

9. remember the bit that slides out, clean the edge of this as this is your main contact as it throws in.(see piccy)

 

10. put it all back together and bolt it back to the car, reconnect the battery and and you should not get the click click again:yes:

 

hope this helps and if you have any questions just pm me..

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How To_ Starter Motor Overhaul.pdf

Edited by JustGav (see edit history)
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LMAO - i was JUST about to write up the same thing.... did my starter this weeked (only just got the job finished!).... stupid thing i did was to take off the bolts from the bottom end... trust me - you dont want to make that mistake (esp since the screws holding it together are shite)... fires up first time every time now :D

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LMAO - i was JUST about to write up the same thing.... did my starter this weeked (only just got the job finished!).... stupid thing i did was to take off the bolts from the bottom end... trust me - you dont want to make that mistake (esp since the screws holding it together are shite)... fires up first time every time now :D

 

machanicly the starter is quite simple..not alot to go wrong is there:thumbs:

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  • 2 weeks later...
agreed - but getting the S.O.B. off is a real pain in the :blush: ....

 

Must confirm to anyone reading this and thinking about giving it a go .. try it, it's relatively easy but as penguin said .. getting it off is a real S.o.a.B!

 

Took my Dad and I 3/4 hour to get the top bolt off, only came off when I suggested putting WD40 in between the bracket and the gearbox housing and then leaving it for a coffee and fag break. Came back 10 mins later and cracked it off straight away.

 

After that, it took about 20 mins to replace the parts and clean the contacts up and then another 20 mins getting it back on as that top bolt is a real P.i.t.A. to get back on :)

 

Anyway, thanks again for the write up and part numbers, helped me out and car starts like a dream again :thumbs:

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  • 1 month later...

Some more photos for ya. I was going to write a guide and explain how the solenoid works and why the contacts burn out and what not but you've pretty much covered it SupraLoopy.

 

It's a shame the brass contact-area around the plunger can't be replenished. I used some SC paper on there though. I tried to show how the funky multi-wobbler extension bar just about fitted around, but it was difficult to photograph under there.

 

Don't overtighten those bolts on the back of the solenoid like I did! I was so lucky to be able to hacksaw a slot in there and it screwed out very easily.

 

 

http://www.css-networks.com/starter/1.jpg

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http://www.css-networks.com/starter/8.jpg

http://www.css-networks.com/starter/9.jpg

http://www.css-networks.com/starter/10.jpg

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http://www.css-networks.com/starter/11.jpg

http://www.css-networks.com/starter/12.jpg

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http://www.css-networks.com/starter/19.jpg

http://www.css-networks.com/starter/20.jpg

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http://www.css-networks.com/starter/21.jpg

http://www.css-networks.com/starter/22.jpg

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http://www.css-networks.com/starter/28.jpg

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http://www.css-networks.com/starter/30.jpg

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http://www.css-networks.com/starter/31.jpg

http://www.css-networks.com/starter/32.jpg

http://www.css-networks.com/starter/33.jpg

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http://www.css-networks.com/starter/41.jpg

http://www.css-networks.com/starter/42.jpg

http://www.css-networks.com/starter/43.jpg

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http://www.css-networks.com/starter/48.jpg

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  • 4 months later...
  • 1 month later...

Just got finished rebuilding my starter, is working like a charm. Much thanks for the post - it was nice to confirm I was looking at the right bolts, etc. I did have some trouble with stuck bolts (several applications of Liquid Wrench and WD40) otherwise I would have been done in much less than the 2 1/2-3hours it took me. I think 3/4 of that time was spent loosening/re-tightening bolts.

 

Thanks again!! :clap:

 

P.S. - anyone else that is thinking of doing this but don't work on cars much (before today all I ever did was fluid changes) --- it takes time but you can definitely do it. I recently bought the Supra and decided I would like to do most of the upgrades/maintenance myself. The parts cost me around $24 U.S. compared to hundreds of dollars to have it done at a shop.

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  • 1 month later...
  • 3 months later...

Great text/photo's & PN's guy's :clap: It worked a treat!

 

I can see why people use 3/8" drive over 1/2" as my arms were starting to give up after a while trying to put it back on with the 20" extension bar on......I live at a keyboard for my job.

 

Just a couple of corrections/additions if I may....

 

4. there will be an electrical connector and a thick cable going to a 14mm nut on the starter, Remove both.

 

This is a 12mm nut.

 

8. now you will see the contacts, on the outside of the starter there will be a wire connecting the starter to the solenoid, remove the 12mm nut and move the wire out of the way. now you are ready to take one side apart, undo the 14mm nut that holds the contact in place and study how it comes apart!!! replace the old parts with the new, do one side at a time so you don't get the parts mixed up.

 

Maybe post #1 can be updated ?

 

Some extra photo's to show the sequence the parts come out.

Done.JPG

Leftside.JPG

Rside.JPG

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  • 3 months later...
Ok this is my how to overhaul your starter contacts:

 

1. jack up the car and support safely on axle stands.

 

2. diconnect the earth terminal of the battery (make sure you know your radio code)

 

3. to the nearside of the car at the back of the engine you will find your starter motor(just before the gearbox)

 

4. there will be an electrical connector and a thick cable going to a 14mm nut on the starter, Remove both.

 

5. you will see one of the bolts that hold the starter in, the other is a bit more tricky, it is located just above and to the right and has a bracket attached(you will see this with a torch or leadlight)

 

6. using a long exstention bar about 12-18 inches long and a 3/8 drive rachet take a 14mm wobbly end socket or use a normal socket and a universal joint adapter and going in from just above the gearbox you should get on the bolt quite easy. try to undo the bolts while pulling the starter backwards so as not to take the bolts out of the bellhousing.

 

7. you will now have the starter out and ready for overhauling. ther are three 7mm nuts on the starter undo these carefuly as there is a sprung loaded throw in switch in there that you have to take out(this just slides out).

 

8. now you will see the contacts, on the outside of the starter there will be a wire connecting the starter to the solenoid, remove the nut and move the wire out of the way. now you are ready to take one side apart, undo the nut that holds the contact in place and study how it comes apart!!! replace the old parts with the new, do one side at a time so you don't get the parts mixed up.

 

9. remember the bit that slides out, clean the edge of this as this is your main contact as it throws in.(see piccy)

 

10. put it all back together and bolt it back to the car, reconnect the battery and and you should not get the click click again:yes:

 

hope this helps and if you have any questions just pm me..

 

Did you make a note of the number on the silver label may start 028000- or 128000- or maybe 228000-.

 

If I could get this number I could get the contacts at a lot less cost then Mr T plus I may be able to get brand new plungers (the thing with the round copper disc) at cost.

If you can help I can post prices for the new parts !!:)

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Did you make a note of the number on the silver label may start 028000- or 128000- or maybe 228000-.

 

If I could get this number I could get the contacts at a lot less cost then Mr T plus I may be able to get brand new plungers (the thing with the round copper disc) at cost.

If you can help I can post prices for the new parts !!:)

 

Sorry i can't help anymore..:blink:

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I already ordered the above parts and they said they ll be ready tomorrow to pick them up from MR-T, hopping the guzeer got the second part number right though as he called it starter battery terminals ?!!

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Great text/photo's & PN's guy's :clap: It worked a treat!

 

I can see why people use 3/8" drive over 1/2" as my arms were starting to give up after a while trying to put it back on with the 20" extension bar on......I live at a keyboard for my job.

 

Just a couple of corrections/additions if I may....

 

 

 

This is a 12mm nut.

 

 

 

Maybe post #1 can be updated ?

 

Some extra photo's to show the sequence the parts come out.

 

When you put the cover that the spring pushes against back on (on this pic #1 above) be very careful with the three small bolts. They will shear very easily. I learned the hard way, not once, but twice!

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