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Thread: How To: Overhaul starter motor contacts

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    Me? Post? Never! Club Member SUPRALOOPY's Avatar
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    Technical How To How To: Overhaul starter motor contacts

    How to overhaul starter motor contacts
    PDF Version - http://www.mkivsupra.net/vbb/attachm...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

    hope this helps and if you have any questions just pm me..
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    Last edited by JustGav; 12-02-10 at 15:25.
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    Me? Post? Never! Club Member SUPRALOOPY's Avatar
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    Wink part numbers

    this is what i used from mrT
    28226-74070
    28226-22050
    Don't spend your life with someone you can live with. Spend it with the one you can't live without. :-)

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    I'm a newbie Club Member Tom's Avatar
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    Nice guide
    Tom.

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    . Club Member merckx's Avatar
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    Good stuff, worth moving to the FAQ's section.
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    has the BIGGEST Club Member penguin's Avatar
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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 $#@!e)... fires up first time every time now
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    Me? Post? Never! Club Member SUPRALOOPY's Avatar
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    Wink good to hear

    Quote Originally Posted by penguin
    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 $#@!e)... fires up first time every time now
    machanicly the starter is quite simple..not alot to go wrong is there
    Don't spend your life with someone you can live with. Spend it with the one you can't live without. :-)

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    has the BIGGEST Club Member penguin's Avatar
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    agreed - but getting the S.O.B. off is a real pain in the ....
    1993 Jspec Supra TT - Sold

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    Me? Post? Never! Club Member Jive's Avatar
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    Quote Originally Posted by penguin
    agreed - but getting the S.O.B. off is a real pain in the ....
    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
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    Super Admin Super Moderator Branners's Avatar
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    as per the other thread this fixed the problem for me as well. Phoenix did the work for me but used the same part numbers so it all went fine.

    Car starts perfectly now.

    JB
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    I'm part of the furniture Club Member Ian C's Avatar
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    Poach

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    auto-matic Club Member carl0s's Avatar
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    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.











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