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Author: Subject: Reverse box stopped working
mr T

posted on 4/9/13 at 10:30 PM Reply With Quote
Reverse box stopped working

So tonight it stopped working it would go in reverse but wouldn't go back into drive so I've got it out and stripped it apart there wasn't a lot of oil in it and small specks of metal that were stoping the drive cog from re engaging
Can anyone tell me the best way to clean it out and what is the best oil to put in and how full do I fill it
Cheers tony

P.s it's a mnr box

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big_l

posted on 4/9/13 at 10:37 PM Reply With Quote
Your not having much luck !

Probably best to phone MNR in the morning I'm sure they won't mind chatting to you about the process !





Check out my blog mnrvortxhayabusa@blogspot.com

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mr T

posted on 4/9/13 at 10:38 PM Reply With Quote
Haha
No your ok

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steve m

posted on 5/9/13 at 06:23 AM Reply With Quote
I thought MNR only supplied top notch goods





Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at




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mark chandler

posted on 5/9/13 at 10:48 AM Reply With Quote
As you are reluctant to talk to the supplier, with hardly any oil I suspect their interest will be low any away.

If mine I would remove, flush through with paraffin or diesel and shake all the bits out, then examine for damage.

If the bearings are rough or damaged then look at them, there will be a unique part number so order and replace, a couple of little chips on gear teeth you will just have to live with.

Maybe even drill and install a magnetic sump bung to trap grinding s in the future if this does not exit today.

Regards Mark

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mr T

posted on 5/9/13 at 04:04 PM Reply With Quote
Thanks Mark

Box is now back together and working just need to put it all back together

What I did find was that the output shaft on the engine is turning when the engine is is in nutral so when you try to engage reverse the cog on the reverse box is turning on the engine side and the cog to the rear of the box is still causing it to grind when you engage
Looks like the only way round it is to stop the engine before engaging reverse
Cheers tony


Just found that if I push the clutch down in neutral the engine shaft stops turning I've been putting it in reverse in neutral and that's why it's been grinding the cogs
Also when it's in first gear with the clutch down the output shaft is turning very slowly, so it's nutral with clutch down to change into reverse
[Edited on 5/9/13 by mr T]

[Edited on 5/9/13 by mr T]

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yahshuatwo

posted on 6/9/13 at 05:29 PM Reply With Quote
better come try the r-falcon FNR from the USA
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mr T

posted on 6/9/13 at 05:43 PM Reply With Quote
quote:
Originally posted by yahshuatwo
better come try the r-falcon FNR from the USA


Ok nice one send us one ill give it a go

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Ian Jones

posted on 6/9/13 at 09:17 PM Reply With Quote
quote:
Originally posted by yahshuatwo
better come try the r-falcon FNR from the USA


ill try one as well please :-)

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Fencewrecker

posted on 1/10/13 at 06:41 PM Reply With Quote
Hi Mr T

I am aware that it uses a special oil specific to the bearings used. The engineer in me knows from experience the expensive consequences of using the wrong oil.

Also did you go to Donnington this year.

Good luck with the reverse box.

Dave

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mr T

posted on 6/10/13 at 11:16 AM Reply With Quote
quote:
Originally posted by Fencewrecker
Hi Mr T

I am aware that it uses a special oil specific to the bearings used. The engineer in me knows from experience the expensive consequences of using the wrong oil.

Also did you go to Donnington this year.

Good luck with the reverse box.

Dave



Thanks for that wrecker do you think the chip fat I put in will be ok then

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Fencewrecker

posted on 6/10/13 at 07:15 PM Reply With Quote
Hi

Only if you have put it through a sieve first, changed its chemical signature and not over filled the box. On the bright side you can use the chip newspaper to carry the bits hope after the box explodes.

Happy days.

some people are beyond hope!!

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