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 The Bigfella
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| posted on January 3rd, 2008 at 12:22 PM |
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Circlip ?? for AT gearbox output shafts
My gearbox was built 10 years ago and when I finally got around to putting oil in it recently, discovered that it had never had the circlips or caps
installed on the output shafts - then again, a second supplier was involved in the conversion to Kombi CVs ....... so its a bit of a mystery as to
what I'm dealing with. Gearbox has a Quaiffe 3.88 LSD in it too, if that makes a difference?
Anyhow, I've just picked up the caps to seal the oil in, but they didn't have any circlips. I've just run the micrometer over the shaft and it
comes in at 25mm.
The question is .... are these just a wire circlip, or the type that need needle-nose circlip pliers - ie the flat type of circlip?
Thanks
Ian
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The Bigfella
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| posted on January 3rd, 2008 at 05:45 PM |
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Surely someone can remember what holds the flanges in?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on January 3rd, 2008 at 06:03 PM |
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They are the flat type of circlip.
There should be a spacer under the drive flange.
Any flat circlip of the correct thickness should do the job.
Give me some time and I will go and measure one for thickness.
| Quote: | Originally
posted by westi
That's mad Alan.
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The Bigfella
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| posted on January 3rd, 2008 at 07:42 PM |
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Thanks Dave - I re-read all 19 or so pages of your thread again to see if I could spot it by the way - not that doing that was a chore. Not sure
about the spacer - but it looks like the flange won't have any free play - the circlip will just drop in.
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68AutoBug
A.k.a.: Lee Noonan
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| posted on January 3rd, 2008 at 10:07 PM |
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the circlip is a tight fit in the axles..
they usually need to knocked into the groove with a punch...
the circlips /snap rings are flat with angled ends for circlip pliers to be used....
Lee
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68AutoBug
A.k.a.: Lee Noonan
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| posted on January 3rd, 2008 at 10:12 PM |
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The small circlip /snap ring goes into the groove...
The larger one just sits on the axle [no groove]
just a spacer...
Lee
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The Bigfella
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| posted on January 3rd, 2008 at 10:17 PM |
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Thanks mate - looks like I better go for the genuine article, rather than raid my engineering mate's parts trays.
I gather that that larger one is a spacer between the circlip and the oil sealing cap then is it?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on January 4th, 2008 at 07:34 AM |
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The larger spacer slides on the shaft FIRST before the drive flange.
Most of the circlips are 2mm and the spacer around 3mm thick.
| Quote: | Originally
posted by westi
That's mad Alan.
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The Bigfella
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| posted on January 4th, 2008 at 08:01 AM |
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Thanks Dave - much appreciated. This ten years between getting the gearbox built and getting it happening is just a bit too much .....
I'll put some more photos of the build up again soon - says he, looking forward to another session with the angle grinder and TIG today......
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on January 4th, 2008 at 08:03 AM |
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The actual measurement of the spacers are 2.5mm and circlip 2mm thick.
When I ran that type of tranny in my drag car I bolted the flange down with a big washer and a bolt.
The washer was about 5mm thick and was sealed on the face and diameter because it replaced the stock rubber plug.
I made a solid spacer in that particular case so that it would not spread when the bolt was tight.
The 2.5mm spacer with stock parts, is important because if it lets the flange float it will punch out the outer cap/seal
| Quote: | Originally
posted by westi
That's mad Alan.
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The Bigfella
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| posted on January 22nd, 2008 at 05:43 PM |
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Dave
There were 2.5mm spacers in there as it turns out, just no circlips. I've pulled the output shafts out of an old box too to get the circlips - and
the spacers in that are exactly the same.
If the shafts are put in without the spacers - yep, they are about 2.5mm in from where the circlip goes. But with the spacers in ...... no room for
the circlip. Both sets of spacers are cupped enought to prevent there being room for the circlips. Is there some trick for getting these circlips in
without resorting to a BFH?
Ian
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on January 22nd, 2008 at 06:58 PM |
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Hmmmm.
Not sure about Quaiffe's output spline,
but if you measured 2.5mm without the spacer it should go together.
Get the circlip on the shaft, and tap it down starting from one end of the "C",
and it should progressivly seat into its groove.
Bit hard to explain with words...
| Quote: | Originally
posted by westi
That's mad Alan.
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The Bigfella
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| posted on January 22nd, 2008 at 07:03 PM |
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I'll give it a bang tomorrow. Thanks mate.
I was tempted to throw the box in the car boot the other day and drop by the Gold Coast - I had a quick work visit to Ballina - I did make it as far
as M'bah for lunch with a mate - but the Gold Coast might have been pushing it a bit far. We got home this morning after a trip up the Oxley Highway
and down the Putty Rd yesterday. My wife complained this morning that she nearly fell out of bed last night because she was dizzy from all the
corners.
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68AutoBug
A.k.a.: Lee Noonan
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| posted on January 22nd, 2008 at 07:13 PM |
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Yes
the circlip that goes into the groove is a tight fit..
I have always used a punch going round and round until it fits into the groove...
Lee
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