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Thread: Rolls Royce B80

  1. #21
    Join Date
    Nov 2011
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    West Yorkshire
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    172

    Default Re: Rolls Royce B80

    Quote Originally Posted by Richard Farrant View Post
    Glad to here you have got to the bottom of this. It was no surprise that the oil sealed the exhaust valves for the compression test as the plugs are above the valves and oil would have gone over them before running down the bores.

    regards, Richard
    I am still baffled as to how the oil made a difference when it was an inlet valve that was causing the problem. Sent me barking well up the wrong tree, that did......
    Last edited by mtskull; 04-06-2017 at 08:39.

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  3. #22
    Join Date
    Aug 2016
    Location
    North East England
    Posts
    420

    Default Re: Rolls Royce B80

    At least You have got it sorted. Tick that box. Look at the time and money asking for help saved It was worth the wait for the adjustment comment.

  4. #23
    Join Date
    Nov 2011
    Location
    West Yorkshire
    Posts
    172

    Default Re: Rolls Royce B80

    Quote Originally Posted by john1950 View Post
    At least You have got it sorted. Tick that box. Look at the time and money asking for help saved It was worth the wait for the adjustment comment.
    Absolutely. A bit scary to think how close I was to taking the head off. Lesson learned: Check EVERYTHING.

  5. #24
    Join Date
    Nov 2011
    Location
    West Yorkshire
    Posts
    172

    Default Re: Rolls Royce B80

    Drawing this saga to a close, today I re-fitted the original carburettor, having stripped & cleaned it and also having replaced a dodgy diaphragm with a better one robbed from a spare carb (new diaphragms on order).

    To cut a long story short, we went for a test drive and the old Dennis ran, in the words of the owner: "Better than it has done all the time I have owned her". Much kudos coming in my direction but the credit really belongs to all of the folk on this forum who helped.

    Thanks again, folks. Now to move on to the next fire engine in the queue. This one's a little more modern, a Dennis F45 from c. 1970.

    Coming soon, the first instalment of the sequel: The B81 saga......

  6. #25
    Join Date
    Aug 2016
    Location
    North East England
    Posts
    420

    Default Re: Rolls Royce B80

    Take a deep breath and dive in Good luck

  7. #26
    Join Date
    Nov 2011
    Location
    West Yorkshire
    Posts
    172

    Default Re: Rolls Royce B80

    Another B80 query: Is the "rolled blanket" type of oil filter element designed to be cleaned and re-used? I have just treated this one to an oil and filter change but at nearly 60 a go for the element and with five engines to look after, it would be good to find a way of getting a bit more life out of them.

  8. #27
    Join Date
    Oct 2013
    Location
    Adelaide, South Australia
    Age
    37
    Posts
    1,073

    Default Re: Rolls Royce B80

    You can wash them out in petrol and reuse them. You can also either make up, or find an adapter that will take a modern spin-on filter instead.

    Cheers,
    Terry
    82 BA 88 - Alvis Saracen Mk 5 APC VHF GPMG
    00 BB 81 - Daimler Ferret Mk 2 (115286)
    01 BB 07 - Daimler Ferret Mk 2 (115292)
    http://military-vehicle-museum.org.au

  9. #28
    Join Date
    Dec 2008
    Location
    Canada
    Posts
    3,601

    Default Re: Rolls Royce B80

    Is it the same filter assembly as a Ferret? Can you show me a picture?

    I know someone who has a spin on filter adapter in stock . . . .. . . .
    Regards

    Robin Craig

    2 Canadian MK1 Ferrets
    2 Wide Track Trailers
    Canadian Army Kawasaki KLR 250 CFR 95-10908 ex PPCLI C/S 91S
    M4 Treadway bridge training sets
    Home of the Maple Leaf Adapter

  10. #29
    Join Date
    Nov 2011
    Location
    West Yorkshire
    Posts
    172

    Default Re: Rolls Royce B80

    Quote Originally Posted by robin craig View Post
    Is it the same filter assembly as a Ferret? Can you show me a picture?

    I know someone who has a spin on filter adapter in stock . . . .. . . .
    Sorry, I have no idea what filter is fitted to a Ferret. I'll try to take a photo on thursday, when I am next on site. A spin on adapter would be a good idea if not too expensive; ideally we would need five of them!

  11. #30
    Join Date
    Dec 2008
    Location
    Canada
    Posts
    3,601

    Default Re: Rolls Royce B80

    PM sent re adapter
    Regards

    Robin Craig

    2 Canadian MK1 Ferrets
    2 Wide Track Trailers
    Canadian Army Kawasaki KLR 250 CFR 95-10908 ex PPCLI C/S 91S
    M4 Treadway bridge training sets
    Home of the Maple Leaf Adapter

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