Paxman V12YHA

Discussion in 'Help Wanted' started by paxmanmerv, Feb 14, 2007.

  1. paxmanmerv

    paxmanmerv New Member

    Restoring 2 of these so advice & information desperatly needed.
    If anyone is at a loose end & wants something to do, all assistance is very welcome!
     
  2. petternut

    petternut Administrator

    Regrettably I think you may struggle with this one. Too large for most folks to show and their "grenade" reputation would tend to make a commercial restoration ill-advised.

    ttfn
    Roland
     
  3. paxmanmerv

    paxmanmerv New Member

    A grenade reputation `eh? got to be restored then! Got a truck sorted to fit one on, looking for a trailer for the other. May use the other as spares though.
    Found another motor which needs to be added to my collection, 12cyl two stroke Foden on a genset. Better get saving!
     
  4. petternut

    petternut Administrator

    Interesting. I knew that Foden made the FD6 but was unaware of a 12. What type is it?

    ttfn
    Roland
     
  5. paxmanmerv

    paxmanmerv New Member

    Dunno!
    All i do know is its big & sounds great!
    Wiv the Paxman, as they wont be running at full load coz the generator i have for it is not to big, catastrophic faliure should not be to much of a problem. could always put the BEAST in a saftey cage! (oh i do love HSE!)
     
  6. Greenstuff

    Greenstuff New Member

    I would think that the Foden FD4, 6 etc. are at more risk of going bang then a paxman?

    The first time I ran an FD4 with a DC genny upto 1800 rpm I didn't think the rev counter was reading correctly! But then its a two stroke which can be fantastic.

    Whereas the Paxman V12 sounded much more solid. It was a cast iron block one with a turbo so I expect that helped.
    I was offered a aluminium V12 with genny a few years ago. Non Turbo.

    Does that sound the same as the two you've got?

    I don't suppose that the V12 foden was the one on ebay a while ago? The pictures made it look very low and compact.
     
  7. paxmanmerv

    paxmanmerv New Member

    Paxmans that i have are admaralty engines & are pretty much all alloy. they have twin napier turbos, each turbo weighs in at over 200kg & has its own built in oil feed. The blown air runs through intercoolers which must have been quite novel in 1957!.
    The one engine came from F129 HMS Rhyl & ran a genset with a metropolitan vickers 600V alternator fitted (so i am led to believe) while the other is from RMAS Accord, a tug that mixed with ARK ROYAL & other notable ships.
    Have traced the POEM from HMS Rhyl who is being most helpful but lives in Plymouth so all advice is internet based or phone calls, also got a guy in Canada who used & worked on these motors in the oil fields & he is proving to be a very useful contact.
    If anyone else knows this engines type i would love to have a chat for more information.
     
  8. Greenstuff

    Greenstuff New Member

    The Non-turbo all ally paxman V12 I mentioned was rated at 400bhp according to the plate.
    With the Turbos yours must be nearer 800bhp - does that sound right?

    I believe they were/are popular with Fisherman who liked the low weight for power aspect for putting in as generators on the bigger boats.

    The RFA had a lot of ships with multiple Paxmans generators. 8 or 9 which is excessive by modern standards where there are just three main generators.

    You mention safety cages for engines. Does anyone know if there any official guidelines about this for showing on rally fields?
     
  9. paxmanmerv

    paxmanmerv New Member

    Accorcing to Paxman, now MAN-B&W, these are rated at 450 BHP but there is a plate with 1000BHP at 1000RPM on the genset engine so who knows?
    As for safety cages, for highly tuned, high revving diesels as in tractor pulling applications they are in my mind a good idea but dent the visual impact of the sport. engines at shows invariably run at just off tickover & squirt a bit of water through a tap so not in much danger of being to spectacular.
     
  10. rob1808

    rob1808 New Member

    Paxman engines

    I cannot offer you any advice re the above. However when I was in the MN (Blue Funnel Line) 40 years ago I seem to remember these or similar being fitted to the "Priam" class as emergency generators mounted well up on the after end of the superstructure. I was not all that conversant with that class of ship at the time as I was steam orientated but did a bit of standby and home coastal time in them.
    As Roland mentioned they had a terrible reputation for self destructing and nobody would go near them when running which fortunately was not often. Probably caused more of an emergency than they were supposed to assist in.
    Good luck!
     
  11. paxmanmerv

    paxmanmerv New Member

    What i am hoping is that as the Paxman will be run at 100RPM rather than 1500RPM full throttle with a fairly light load, the catastrophic faliure can be avoided.
    Suck it & see i reckon!
     
  12. paxmanmerv

    paxmanmerv New Member

    Since Feb, i have been in touch with Paxman, now MAN-B&W about the possibility of engines exploding. From what they are saying, the engines that have suffered catastrophic failure was as a result of not following the correct starting procedures.
    The engineer off the Rhyl who has been a mine of information has said that he had no problems with his engines but stressed that he followed the start procedure to the letter.
    Therefore, if the engine is started BEFORE priming the oil system & is run to full throttle from go, then faliure is likley. But to be fair, if you run any large engine in that manner then you are likely to get engine parts rattling around your ears as you all know, high speed & no oil usualy means problems.
    I hope to see many of you throughout the year at many un-eventful shows.
     
  13. paxmanmerv

    paxmanmerv New Member

    Nearly ready for the first start of the beast! only thing stopping me is a pesky oil pipe. Have posted a thread re pipe probs & am hoping for the best.
     
  14. paxmanmerv

    paxmanmerv New Member

    WITH LUCK!!!
    Should be in a possition to see if i can get it started this weekend, have warned the neighbours so anyone with a frail disposition can have a day out to avoid the racket.
    Not found anyone yet to hold the video camera, cant think why??
     
  15. petternut

    petternut Administrator

    I'll watch the Northern horizon with keen interest :)

    best of luck
    Roland

    PS Do you have an emergency stop strategy? Always a good plan for a first start!
     
  16. paxmanmerv

    paxmanmerv New Member

    three way valve on fuel supply, one to tank, one to pump & one to atmosphere, should be ok. Got a new parachute so i am sure i will be fine!
     
  17. TangyeDan

    TangyeDan Active Member

    A piece of steel plate to put over the air inlet is also a good idea, just in case it decides to run away on it's own oil!

    Good Luck!

    Dan
     
  18. paxmanmerv

    paxmanmerv New Member

    Steel plate is a good idea BUT if it runs of its own oil & you blank the inlet off, air will enter the same way as the oil so the motor will probably continue to race away while my accompaces & i beat the 4 minite mile in the opposite direction!
    Still, running or not, i hope to have it at Much Marcle on 21/22 july as an on-going restoration -- weather/ground permiting! Might even see some of you there.
     
  19. paxmanmerv

    paxmanmerv New Member

    WHAT A DISASTER!!!
    Man with the oil didnt show up until Sunday night & the geezah with the compressor was never to be seen!
    Looks like a jury rigged setup with the air start & see what happens. Still on schedule for Much Marcle running or not but very much dependant on the weather.
     
  20. paxmanmerv

    paxmanmerv New Member

    HELLS TETH!!!
    Much Marcle cancelled so will not get to see any of you there.
    Next scheduled outing for the Paxman on tour is Fairford on the 18th & 19th Aug.
    Mother in law (who swears she has a hot line to the big fella upstairs) says we can expect SUN, SUN, SUN!!! Hope shes right!
     

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