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Thread: Zenith Stromberg CD 175 Breathing

  1. #1
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    Zenith Stromberg CD 175 Breathing

    Hello All,

    What are the advantages and disadvantages of different air filters instead of the original oil bath filter?

    One of my Series 3 with the 2.6 litre six cylinder motor came with a modified air filter that replaced the oil bath cleaner. It still used the rubber hose however it had the air filter held on at the end with an adjustable Utilix hose clamp.

    When I did some research about overhaul kits for the Zenith Stromberg CD 175 carburettor I kept coming across two other air cleaner types for the CD 175. They were the K & N filter 56-9156; and the Ramflo filter.

    Of the four choices: original oil bath, the current modified clamped on nameless air filter, the K & N, or the Ramflo which would be the most advantageous and best to maintain?

    Kind Regards
    Lionel
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  2. #2
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    Trust the engineers

    Lionel,

    Hello from Brisbane.

    There are an awful lot of Land Rovers that have traversed the planet with the original oil bath cleaner intact. Ditto other 4WDs, tractors etc.

    My guess is that for harsh and dusty conditions they were deemed by the design engineers to be the best way to go. Can't really see that they would have got it all that wrong.

    For my money I would be leaving the sports type filters to the revheads.

    Cheers,

  3. #3
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    Quote Originally Posted by S3ute View Post
    Lionel,

    Hello from Brisbane.

    There are an awful lot of Land Rovers that have traversed the planet with the original oil bath cleaner intact. Ditto other 4WDs, tractors etc.

    My guess is that for harsh and dusty conditions they were deemed by the design engineers to be the best way to go. Can't really see that they would have got it all that wrong.

    For my money I would be leaving the sports type filters to the revheads.

    Cheers,
    G'day S3Ute,

    But those Ramflo's look so pretty!

    Maybe I should get the oil bath cleaner chromed or anodised so it looks more flash. I am sure it would make the 2.6 go faster

    Once I get the damn thing started that is. No spark and it remains elusive during the search for it.

    Kind Regards
    Lionel

  4. #4
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    Bling

    Lionel,

    Hello again.

    Yes, the Ram Flos and pot types certainly look their part.

    In a former life of mis-spent youth I had an MGB and hung around with the kinds of folks who drove Triumphs (TR3, TR4 and Spitfires), Austin Healeys (Sprite, 2000 etc), GT Cortinas and much modified minis. For this lot the Ram Flos and pots certainly were on the "must have" lists.

    However, I don't think any of these were ever likely to be confronted with the ambient air conditions that your average Land Rover, or general country ute for that matter, typically comes across during its working day.

    Others, may come on and declare these musings as absolute tosh. However, having endured a career in which "progress is spurred by challenge" my otherwise veneer thin sense of ego may well cope.

    Cheers,

  5. #5
    Peter O Guest
    I killed (dusted) more than one holden grey motor with these chrome additions and eventually went back to big paper element types, oil baths or best of all Donaldson aircleaners.
    I have always run Donaldson aircleaners on my off road race cars and never dusted a motor with them. Even the big breathing rotary engines were well supplied by the 4" donaldson units.

    I just belted the dents out of my original oilbaths lid and gave it a repaint last weekend but will admit I am thinking of adapting the inlet to run a snorkle.

  6. #6
    Join Date
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    Zenith Stromberg CD 175 s Flooding

    Hello All,

    While I was sorting out my spark problem - yes the one I actually caused myself I noticed that the was fuel dripping out from the bottom of the Zenith Stromberg CD 175 s. Could people give me some clues as to what could be causing this? Perhaps a stuck central/main piston or accelerator valve?

    The engine did run sweetly for a little while. Then it just quietly and slowly seemed to strangle itself and stopped running. It did not respond by the time I could reach the accelerator pedal or choke.

    I was really pleased that it started. When I bought it the engine was not running. So this is only the second time that I have managed to coax it back to life. However it did not keep going for very long at all.

    In all honesty I had started to think that the first time it ran was just a figment of my own imagination. Maybe I am deluding myself again and it actually did not start today

    Kind Regards
    Lionel

  7. #7
    Join Date
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    There are o rings there that dry out and cause the leak. You need to take the whole fitting out by screwing it out and just replace the O ring - BUT there is a an adjustable seat in the fitting - take note of its position in case you move it but try not to move it.

    It has been 5 years since I did mine so I cannot remember the specific details - takes about 5 minutes. Hopefully someone with updated experience will come along and give details.

    Garry
    REMLR 243

    2007 Range Rover Sport TDV6
    1977 FC 101
    1976 Jaguar XJ12C
    1973 Haflinger AP700
    1971 Jaguar V12 E-Type Series 3 Roadster
    1957 Series 1 88"
    1957 Series 1 88" Station Wagon

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