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subarupete
Firing on two.
Joined: March 5th, 2009, 6:23 pm
Posts: 2247
Location: Near Monmouth
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 Breather Overhall Having seen Russel's recent good work, It spurned me on to fix my breather. I have made "clamp" to allow the breather parts to be re-connected. Research on-going for valve material, use rubber in the short term as you will be able to dis-assemble your breather. If there is any demand I can supply these ... Bottom has gap to fit over dip stick connection Top part in two halves 12 off 4mm bolts and nylocs. Cost including p&p about £20.00
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| April 14th, 2011, 5:04 pm |
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subarupete
Firing on two.
Joined: March 5th, 2009, 6:23 pm
Posts: 2247
Location: Near Monmouth
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Re: Breather Overhall Some "How to..." Pics Bench Grinder allows some control when grinding Grind round the seam, just enough to be able to prise it apart Clamp Fitted
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| April 14th, 2011, 6:56 pm |
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J-dub
Aircooled Idiot
Joined: April 24th, 2010, 10:01 am
Posts: 5733
Location: Location Location
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Re: Breather Overhall id have one of these for future occasions 
_________________
1988 2cv 652cc
1993 Toyota Hilux Surf 3000cc runs on Bio Diesel
2004 Toyota Landcruiser Amazon 4200cc runs on Bio Diesel
1998 Daihatsu Hijet 1300cc
2005 Susuki Bandit 650cc
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| April 15th, 2011, 1:52 am |
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subarupete
Firing on two.
Joined: March 5th, 2009, 6:23 pm
Posts: 2247
Location: Near Monmouth
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Re: Breather Overhall Re-furbished the internals of the breather, will now out-last me and also the car. Tested with my new manometer and get 4.5cmm of vacuum at a fast tick-over and 0cm at high-revs
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| April 19th, 2011, 5:38 pm |
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Devils Advocate
Firing on two.
Joined: July 26th, 2009, 3:36 pm
Posts: 1019
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Re: Breather Overhall That's excellent stuff, Pete. What material did you end up using for the rubber diaphragms?
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| April 19th, 2011, 9:21 pm |
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subarupete
Firing on two.
Joined: March 5th, 2009, 6:23 pm
Posts: 2247
Location: Near Monmouth
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Re: Breather Overhall Shim steel, very, very fiddly to cut and make flat...but its works.
Improved vacuum with better starting and an "stable" tick-over.
Will also check the mpg as i believe that also will be improved.
May be make-up some "replacement part" if there is an interest.
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| April 20th, 2011, 10:01 am |
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Devils Advocate
Firing on two.
Joined: July 26th, 2009, 3:36 pm
Posts: 1019
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Re: Breather Overhall Oooooh, shim steel? That sounds goooooood. Working a bit like the 'reed' valves on 2-strokes engines?
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| April 20th, 2011, 6:20 pm |
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J-dub
Aircooled Idiot
Joined: April 24th, 2010, 10:01 am
Posts: 5733
Location: Location Location
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Re: Breather Overhall subarupete wrote: Shim steel, very, very fiddly to cut and make flat...but its works.
Improved vacuum with better starting and an "stable" tick-over.
Will also check the mpg as i believe that also will be improved.
May be make-up some "replacement part" if there is an interest. better running etc as to a normal brand new replacement?
_________________
1988 2cv 652cc
1993 Toyota Hilux Surf 3000cc runs on Bio Diesel
2004 Toyota Landcruiser Amazon 4200cc runs on Bio Diesel
1998 Daihatsu Hijet 1300cc
2005 Susuki Bandit 650cc
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| April 20th, 2011, 11:39 pm |
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subarupete
Firing on two.
Joined: March 5th, 2009, 6:23 pm
Posts: 2247
Location: Near Monmouth
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Re: Breather Overhall @DA
Copied the idea from ECAS CPD valve.
@JW
Vacuum of 4.5cm is good I think......feedback here please.
I dont have a new breather to compare, if you have one to lend I'd be happy to do some tests.
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| April 21st, 2011, 10:10 am |
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EirikJ
Firing on two.
Joined: February 17th, 2009, 8:43 pm
Posts: 567
Location: NOrWAY
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Re: Breather Overhall subarupete wrote: Vacuum of 4.5cm is good I think......feedback here please.
I dont have a new breather to compare, if you have one to lend I'd be happy to do some tests. Did you measure it before you did anything to it? I hate to say this, but I'm afraid it's not working optimal, as the vacuum should never fall to zero if stuff is working. This is what the Citroën manual says: Quote: The difference in levels should be:
- With engine idling: Minimum 5cm. The vacuum should never fall to zero, no matter the engine speed. Otherwise the breather must be replaced. To compare, I think my new one had 7-8cm difference.(maybe I remember wrong)
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Vennlig hilsen, Eirik
Five 2CV's, DS 21 ieh Pallas -70, DS 23 h Pallas -75, CX 25 GTi automatic -89, XM 2,0i -90
And a Heinemann Z412 -80
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| April 21st, 2011, 10:32 am |
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