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Gtir Motorsport club » General Discusion » Gtir related Discussion » My gearbox

My gearbox

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1 My gearbox on 20th November 2015, 2:26 pm

Stu

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I have just dropped my gearbox off at the gearbox specialists.
I had a look today and under the diff you can see part of the magnet and then thousands of little bits of it clumped on things.
Theres no way I can strip the box and clean it all and rebuild it!

So I decided to drop it off.

Steve the gearbox man said he will strip it down and then phone me to discuss what he finds.

Wont be until Monday afternoon tho.

Hopefully it's not to much to sort out..


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2 Re: My gearbox on 20th November 2015, 2:37 pm

wrc

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That magnet definatly wont of helped mate as that's a large foreign body, as you well know.

My man is building me one good box out of my two mate even though they only basically require 1 part each.

Anything else you are more than welcome to. Literally everything else is there.

3 Re: My gearbox on 20th November 2015, 2:40 pm

wrc

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Did you split the casing apart to look?

4 Re: My gearbox on 20th November 2015, 2:42 pm

Stu

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Thanks Ross. I will keep that in mind mate.
Hopefully it's just a clean it needs.
The magnet is a soft material so fingers crossed..


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5 Re: My gearbox on 20th November 2015, 2:43 pm

Stu

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@wrc wrote:Did you split the casing apart to look?
Yes mate I took the casing off.
Everything I can see looks fine. Just looks like the magnet has exploded.
One of the bolt heads on the diff has a groove in it but other than that I couldn't see any damage.
Hopefully they dont find anything else wrong.


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6 Re: My gearbox on 20th November 2015, 7:48 pm

gtir_woody

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Hopefully that's easy fixed and doesn't cost much to get all done stu

7 Re: My gearbox on 20th November 2015, 7:56 pm

Stu

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@gtir_woody wrote:Hopefully that's easy fixed and doesn't cost much to get all done stu
I do hope so mate.
One of the bolts on top of the diff was chewed up on the top. I said I thought maybe the magnet had done it and he said the magnet was to soft to do that. So im hoping it's an old injury and not something else that has broken off..
We will see monday.
I have £300 to spend so hopefully it can be sorted for that.


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8 Re: My gearbox on 20th November 2015, 8:11 pm

wrc

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You'll be fine mate. Not gonna need anywhere near that spending on it Wink I'll nudge my man if you need any silly bits.

All being well it will have just bounced round the casing, if it had fucked anything you'd of seen it after popping the casing. Did it still drive ok?

9 Re: My gearbox on 20th November 2015, 8:13 pm

Stu

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Yeah it drove okay.
It was just going into gear that was obstructed. Some times it would glide into gear and then other times it was blocked.
So im guessing the magnet pieces were obstructing it.


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10 Re: My gearbox on 21st November 2015, 7:04 pm

burrows1980

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Not knowing much about gearboxes, but do all boxes have a magnet on the drain plug?

11 Re: My gearbox on 21st November 2015, 8:06 pm

gtir_woody

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I would say so. Sumps, rear diffs have them aswell.

12 Re: My gearbox on 21st November 2015, 8:19 pm

wrc

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It's not a magnet on the sump plug, it's a separate magnet in the gearbox just slotted into the casing Smile

13 Re: My gearbox on 21st November 2015, 8:26 pm

gtir_woody

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Ah I see, my bad Laughing

14 Re: My gearbox on 23rd November 2015, 12:12 am

splmum

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Item #14
http://nissan4u.com/parts/sunny/er_n14/1990_11/type_23/power_train/transmission_case_and_clutch_release/illustration_2/

It is a half donut shaped magnet that sits in a half donut open slot on the bottom right and corner of the bell-housing and held into place when the end case is attached.

15 Re: My gearbox on 23rd November 2015, 5:02 pm

Stu

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I have been down to see the gear sets after they have been removed...
Some Teath have been chipped and 4th gear wouldn't turn. While I was there he took the 4th gear off and you can see that it's been under some heat as the shaft looks scorched. .
We have decided to strip it all apart and I have bought another gearbox off Gaz and the bloke is building me a good box out of the two.
The race on the diff bearing is pitted too so that's being replaced.


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16 Re: My gearbox on 23rd November 2015, 6:18 pm

nomad

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Sorry to hear that stu .... atleast it was not alot worse ...


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17 Re: My gearbox on 23rd November 2015, 7:19 pm

gtir_woody

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No good stu, at you will have a really fresh box after its all done. One less thing to worry about in the long run

18 Re: My gearbox on 23rd November 2015, 7:21 pm

shroom

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At least you found the problem, poor box must have been through the mill a bit, that magnet probably had that much on it that's why it came off Laughing

19 Re: My gearbox on 23rd November 2015, 9:13 pm

Stu

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@nomad wrote:Sorry to hear that stu .... atleast it was not alot worse ...
I had a feeling it was more than just the magnet mate.
I'm glad he is charging me a decent price tho Smile
All in i will have a rebuilt gearbox with new bearing for around £300
That isn't bad to be fare.

@gtir_woody wrote:No good stu, at you will have a really fresh box after its all done. One less thing to worry about in the long run
Exactly woody. Should be an easy mind about the gearbox once it's done Smile
@shroom wrote:At least you found the problem, poor box must have been through the mill a bit, that magnet probably had that much on it that's why it came off Laughing
He did say that it's proberbly had a hard life lol
Atleast it's been found before it totally let go Smile


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20 Re: My gearbox on 23rd November 2015, 9:14 pm

Stu

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I have just got back from picking the donor box up from Gaz.
Cost me a little extra tho. Had to bribe the kids with a mcdonalds meal haha only took 2 hours there and back Smile


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21 Re: My gearbox on 24th November 2015, 4:55 pm

Stu

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Dropped the donor gearbox off at the specialists and he he was shocked that I had taken him a complete gearbox.
He thought I was just taking him another gears.
So the labour cost is going to be more than he quoted.
Oh well. The gearbox I'll be sorted by next week some time and thats all that matters!


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22 Re: My gearbox on 24th November 2015, 5:03 pm

shroom

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Lol well if you were so proficient in stripping it dowm for him you would have probably done it yourself so at least giving him the whole thing ensures he has everything

23 Re: My gearbox on 24th November 2015, 5:23 pm

Stu

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Lol i know yeah.
I did tell him I had a mate in Stoke with a gearbox that the selectors were fucked. That I could buy for the parts he needed.
Like you say. He has everything he needs there now. Just a new bearing for the diff that he has to get for the build now.


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24 Re: My gearbox on 24th November 2015, 6:51 pm

pulsarmoley

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Im looking forward to pulling mine apart, there's nothing wrong with it but when i bought it, the input shaft bearings sounded noisy but over the years they have quietened down scratch
At least you will have some more spares with another box should the worst happen.


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25 Re: My gearbox on 24th November 2015, 7:10 pm

shroom

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I wish I had kept my old spare boxes although they took up so much room they were anoying to store

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