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Index > @ the Pickup Bed (General Topics) > Thread: questions
Thread: questions
Mazdarx605


Redlining
Posts: 314
posted July 24, 2003 04:44 PM

questions

While playing with my REPU today i found that i don't have low speed on the wipers,the backup lights don't work,and while playing with the key a little i accidently turned it too far and the engine began turning (no carb on the engine,and the fuel pump disconnected)over and would not stop even though i turned the key back off.I quickly pulled the wires from the back of the ignition switch but that didn't solve the problem.I quickly ran around the truck and pulled a battery cable off of the battery post.Do you guys have any answers for me about this starting problem?I can probably figure out the wipers and back up lights,but this starting /ignition switch problem is going to be tough i think.Could the wiper problem be switch related or is it more likely a motor problem?The factory shop manual i have doesn't have a wiring diagram per say so it doesn't help much.Thanks in advance.

Chris
74 REPU green w/factory air
ported 13B
lowered
RX-7 tranny
____________
74 green REPU w/factory air
Early production 79 Spark yellow RX-7 GS


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wankel_dreams


Redlining
Posts: 293
posted July 24, 2003 08:19 PM

quote:
i accidently turned it too far and the engine began turning (no carb on the engine,and the fuel pump disconnected)over and would not stop even though i turned the key back off.


At least it wasn't in gear

shouldn't have really hurt anything, except maybe the starter depending on how long it was cranking.

The wiper switch is seperate (or at least its supposed to be) from the ignition. The wiper is part of the Combo switch. I replaced my Combo switch with a Rx4 unit because my high/low beam switch was broken stuck on high beams. I took apart my combo switch, it wasn't that complicated, but i had peices of plastic that were broken off and missing. I think i remember the Rx4 unit went into my 77 REPU with only a minor modification, I remember swapping something from my REPU switch onto the Rx4 unit, but don't remember exactly what it was.


Other REPU owners on this board have had their ignition wiring overheat and melt causing electrical shorts.

as for wiring diagrams, there is one in the image gallery of this site.
____________
74 wankel panther
77 REPU
79 rx7
89 Vert

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Klaus43


Rotorhead
Posts: 1259
posted July 25, 2003 08:43 AM
Edited By: klaus42 on 25 Jul 2003 08:44

If not shorted in the wiring...

...sounds like your starter solenoid shorted/stuck 'on'. Your backup lights, it just might be the connection to the 'reverse gear sensor' on the trans. ... wiring: what a pain! Years of subtle corrosion... check everything; every connection--and every ground. Clean w./ wire brush, and Caig/Cramoline 'DeOxIt' type product to restore connections. Available only at speciality electronics supply houses, it's spendy, but well worth it...a tiny touch goes a very long way! I'll just hazard a wild guess that your 'iffy' fuel pump issue is also really just one of voltage...

       
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nwaco


Redlining
Posts: 407
posted July 25, 2003 07:12 PM

They are separate, but......

Corrosion or oxidation may be your problem. I have had a problem with several of my "combo switches". They are very sensitive to damage or age. They have copper terminals, small ball contacts, and plastic housings. The "key switch" has the same problems, and is just as sensitive to oxidation of the terminals.

I suggest since they are virtually impossible to obtain, less reclaimation parts, you remove them, take them apart ever so carefully, and rebuild them using the utmost care to clean and re-grease the contacts and parts. I have been very successful in this endeavor.

Best of luck, and be careful as some of the little balls have little springs that tend to launch them, and they are a ROYAL pain to re-assemble.


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wankel_dreams


Redlining
Posts: 293
posted July 25, 2003 09:52 PM

quote:

... careful as some of the little balls have little springs that tend to launch them, and they are a ROYAL pain to re-assemble...



LOL, i was just going to warn of exactly the same thing. I guess i'm not the only one who has spent hours on hands an knees cursing and looking.
____________
74 wankel panther
77 REPU
79 rx7
89 Vert

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rotormunky


Redlining
Orlando, Florida
Posts: 424
posted July 26, 2003 05:35 AM

Laugh if you want but this is why I always hunch over the table with a bit of screen/cloth/etc draped over me when I disassemble these sorts of things.

I also like working on my father's stainless workbench. I have a sizeable rare earth magnet that I stick to it. That usually keeps a lot of crap from rolling off the edge. I don't recommend taking about your laptop or HDD or similiar things like this tho :)


____________
-Martin
Orlando, Florida

http://www.themonkeyhouse.org/REPU

'77 REPU (Some assembly required :)
'91 Cabrio (Battered and bruised, but she's still my baby.)

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