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Old 01-20-2013, 11:58 PM   #1
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Default Why do my speedo cables puke gear oil?

I put a new cable in my daily and just like the last one and the track car, they puke gear oil out the fittings at the cluster, all over my pants. This one lasted like two months, now it bounces. WTF?
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Old 01-21-2013, 12:49 AM   #2
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Did you seal the speedo gear box? There's an oring or something.
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Old 01-21-2013, 12:56 AM   #3
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Yep. O-ring on the tranny end. Common leak point.

Hey, at least your cable is well-lubricated!
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Old 01-21-2013, 12:58 AM   #4
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BTW, apparently your transmission is also building pressure. There's a vent on the passenger side near the top. Better make sure it's clear.
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Old 01-21-2013, 01:25 AM   #5
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Vents are cleared when installed and gear oil is clear like Pepsi Clear Gravy.
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Old 01-21-2013, 01:26 AM   #6
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Quote:
Originally Posted by curly View Post
Did you seal the speedo gear box? There's an oring or something.
O ring is on the trans end, not sure about a ring on the clusters.
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Old 01-21-2013, 04:43 AM   #7
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Yeah, and it's leaking on the cable and climbing up the cable like a little cork screw.
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Old 01-21-2013, 12:15 PM   #8
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Is this not odd that it would get all the way up to the cluster?

First I've heard of such a thing, but then it is Hustler.
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Old 01-21-2013, 04:23 PM   #9
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I had an internal leak on one not in a miata but in a civic. It did almost the exact same thing. First I drilled a small hole very carefully in the cable housing about halfway up the fire wall to let all the oil drain before it ever got to the gauge it helped a little I ended up replacing the speedo drive unit on the trans from another one I got used and it went away. I had replaced all the o-rings I could find and it seemed that something internal to the drive unit has a seal on it that went bad. Still going strong to this day that was about 4 years ago.
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Old 01-21-2013, 08:54 PM   #10
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You want this seal.
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Old 01-22-2013, 03:47 PM   #11
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Quote:
Originally Posted by midpack View Post
You want this seal.
It's in there. Thanks for the link though.
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Old 01-23-2013, 12:37 AM   #12
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Bummer, replacing that seal was the only useful bit of info Google could provide.
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Old 01-23-2013, 12:55 AM   #13
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Quote:
Originally Posted by Miater View Post
Is this not odd that it would get all the way up to the cluster?

First I've heard of such a thing, but then it is Hustler.
happens in the FWD mazda community all the time when said seal is missing
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Old 01-23-2013, 04:14 AM   #14
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Yup same thing happened to me last summer, was that shitty seal.
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Old 01-23-2013, 11:15 AM   #15
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Seals don't last forever, especially once compromised. There is both a seal and O-ring in that location. Easy to replace with tranny in the car. Less than $10 for both. I'd at least start by refreshing those.
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Old 01-23-2013, 11:30 AM   #16
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Quote:
Originally Posted by hornetball View Post
Seals don't last forever, especially once compromised. There is both a seal and O-ring in that location. Easy to replace with tranny in the car. Less than $10 for both. I'd at least start by refreshing those.
They are like 4 months old in both cars, but I probably screwed it up.
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Old 01-23-2013, 11:34 AM   #17
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I would have said trans vent, but you said you checked that.
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Old 01-23-2013, 11:51 AM   #18
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I would have said trans vent, but you said you checked that.
I haven't checked-it since installing but there were all clean at installation time.
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Old 01-23-2013, 01:12 PM   #19
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There is also a seal inside the sender thingamajig also I would bet. The round seal is really only to seal the female part of the cable to the male part of the sender so that fluid doesnt leak out of the trans that way. If its traveling up the cable then the sender seal (internaly) is compromised or (I would have to look at it) but the cable might also have a seal in it?

I could be crazy though.
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Old 01-24-2013, 12:31 PM   #20
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This doesn't help The Hustler much, but I just want to thank him for exposing all of the car's weaknesses for us. Have the engine and tranny pulled right now and, since it's so accessible, I'm refreshing the speedo cable O-ring and oil seal and checking the vent. Makes me sleep better at night.
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