Replace or Rebuild?

Engines, Transmissions & Final Drive questions and answers

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manga_blue
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Vehicle: NA8
Location: Moruya, NSW

Re: Replace or Rebuild?

Postby manga_blue » Wed Jul 06, 2016 12:56 pm

Buggar. The water pump leak often comes from having an engine sitting idle for a long time. It could have been OK when it was last running.
’95 NA8

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Ross
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Joined: Tue Jun 12, 2012 11:32 am
Vehicle: NA6
Location: Melbourne Eastern Suburbs

Re: Replace or Rebuild?

Postby Ross » Tue Jul 12, 2016 10:19 am

Did the timing belt and waterpump over the weekend, it's running well, no leaks, so far.
Bled the clutch last night, what a *&%@# that was!
Everything seems to be working as it should, except reverse, it shifts in and out of every gear easily, except reverse. Goes in easily, but is really hard to get out, you really have to shove hard on the stick to get it out.
Is this a transmission issue or a shifter issue.
This is not the original GB from the car, it came with the low km motor. the shifter that was in was pretty rough, all the bushes were stuffed, so we put our shifter into it.
Any ideas?
Cheers
Ross

1990 BRG V-Special, NB Koni sport with King springs, MS-03's

manga_blue
Forum Guru
Posts: 4897
Joined: Mon Apr 24, 2006 7:27 pm
Vehicle: NA8
Location: Moruya, NSW

Re: Replace or Rebuild?

Postby manga_blue » Tue Jul 12, 2016 11:31 am

The gearbox oil could have got old and tacky while it was just sitting around. Have you changed it?

Also, did you remember to put oil in the top turret?
’95 NA8

93_Clubman
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Location: Melbourne

Re: Replace or Rebuild?

Postby 93_Clubman » Tue Jul 12, 2016 11:54 am

If the issue persists after trying manga_blue's suggestions, then following might be of interest:
http://www.miata.net/garage/stuckreverse.html
Seems to not be uncommon on the US Miata forum:
https://www.google.com.au/search?q=stic ... 8wf8uoOICg

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Ross
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Joined: Tue Jun 12, 2012 11:32 am
Vehicle: NA6
Location: Melbourne Eastern Suburbs

Re: Replace or Rebuild?

Postby Ross » Tue Jul 12, 2016 12:35 pm

Thanks,
it's not the stuck in reverse problem posted there. We did drain the turret and put fresh oil in there, fresh oil in the box too.
It's just really hard to get out of reverse, all other gears are fine.
I think i have it though - we swapped over the reverse light switch as the one on the newer box had exposed wires, it's possible we forgot the washer or the two boxes had different washers on them, seems common on miata.net.
I'll get under there and have a look - well put it back on the hoist anyway 8)

Main thing is the motor is running and running well, she doesn't like it when i drive her car, thinks i drive it too hard :D
Cheers
Ross

1990 BRG V-Special, NB Koni sport with King springs, MS-03's

User avatar
Ross
Fast Driver
Posts: 174
Joined: Tue Jun 12, 2012 11:32 am
Vehicle: NA6
Location: Melbourne Eastern Suburbs

Re: Replace or Rebuild?

Postby Ross » Thu Jul 14, 2016 8:59 am

Fixed, it was missing the washer on the reverse light switch, shifts great, just like an MX5 should :D
Cheers
Ross

1990 BRG V-Special, NB Koni sport with King springs, MS-03's


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