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Differential Breather

Differatial

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#1 Paul94

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Posted 05 August 2012 - 09:15 AM

Hi all,

Just started a Zero build. This is my first build and first post on this forum, so excuse the dumb questions.
The diff is now in place, but I have noticed in other blogs that some diffs have small breather pipes, but mine does not. Is this a problem?

Some Photo's attached

Many thanks
Paul94
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#2 mower man

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Posted 05 August 2012 - 09:29 AM

there should be 4/5"of small dia pipe inthe black bung in your photos if it becomes blocked it's possible to get hot enough to blow the seals [rare but poss ] and road dirt can enter diff too [rare ] other than that I would say yes youneed the breather mower man
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#3 knights_templar

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Posted 05 August 2012 - 10:58 AM

as mower man says, there should be a short length of pipe attached, but they tend to get broken off in transit.

you could try and get a replacement from ford.

GBS make an alloy replacement which pushes in after removing the plastic bit, and you add a short length of fuel hose.

and I have seen an adaptation using what’s left of the plastic bit with the addition of a piece of brake pipe, flared at one end, pushed through the hole from inside and bent into a coat hanger hook shape on the outside.

however you do it, remember that the plastic bit has an alignment notch which should be matched with a mark of the casing, as its the shape of the plastic bit inside the diff that prevents the oil coming out.

#4 Snapperpaul

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Posted 05 August 2012 - 02:09 PM

I have in the past used a fuel pipe fitting
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#5 Paul94

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Posted 05 August 2012 - 03:01 PM

Thanks for your very prompt feedback.
I was very tempted to simply ignore it - I am glad I didn't.
Will speak to GBS to get a replacement and fit whilst I still have easy access.
Thanks again
Paul94

#6 alfaGTA

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Posted 06 August 2012 - 11:25 AM

Might be worth your while to add a catch tank to the end of the vent pipe whist you have access ( i used a water bottle to catch the vapours).......... Saves making a mess and possibly getting black flagged on tracks if you are that way inclined.

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#7 mower man

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Posted 06 August 2012 - 03:13 PM

If you are blowing enough out to warrant a catch tank there is a problem! ,probably overfilled mower man
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#8 mcramsay

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Posted 06 August 2012 - 05:11 PM

i do not think the diff will need any kind of catch tank, i would be surprised if you see any oil coming out of the breather....i dont even have one on my diff! but i give my diff at least until the end of the summer before it blows up, so i dont really care! oil seals are over rated any way :p

#9 florin metal works

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Posted 06 August 2012 - 06:03 PM

i do not think the diff will need any kind of catch tank, i would be surprised if you see any oil coming out of the breather....i dont even have one on my diff! but i give my diff at least until the end of the summer before it blows up, so i dont really care! oil seals are over rated any way :p


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#10 mcramsay

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Posted 06 August 2012 - 06:44 PM

Haha I will do,