International b275

Discussion in 'Classic Machinery' started by Petetheploughman, Jul 8, 2017.

  1. As you all know the b250 was a pig to start due to it having an inline pump. But were the early b275's with inline pumps as bad?
     
  2. Ley253

    Ley253 Member

    Location:
    Bath
    I dont thing the pump had much to do with it. Main problem was indirect injection, no engine with this starts well.
     
  3. Mur Huwcun

    Mur Huwcun Member

    Location:
    North West Wales
    They shouldn't be a pig to start at all. My 250 and 275 with inline pump starts lovely now. Do you know about the 12v replacement heater plugs that you can buy or just make some using car heater plugs.

    Most probably your injector pump will need an overhaul aswell, the elements wear and loose injection pressure
     
  4. @Mur Huwcun
    I've put new heater plugs on and it still needs heat for the first 5-10 seconds. Does yours?
     
    Last edited: Jul 8, 2017
  5. Ley253

    Ley253 Member

    Location:
    Bath
    Par for the course I think. One little item which does have a pronounced effect on the starting, is the condition of the small end bushes, even the slightest wear here drops the piston down the bore, so lowering the compression.
     
  6. Mursal and REStracTORATION like this.
  7. This is the most reliable way of heating your nasher
    Done it many time the plugs last so much longer than the original types.
    Also check tappets good battery and clean starter out

    Does it have a poping sound on tickover like a valvy sound but different.
     
  8. MrNoo

    MrNoo Member

    Location:
    Cirencester
    I have a B275 engine in my rape swather, it started out life as a pea viner I believe but I would say that the engine is a good starter, turn key, wait for pepper pot to glow red and then off she goes. I can leave it a year (or longer!) put a fresh battery on and she'll start first turn.
     
  9. wuddy

    wuddy Member

    Location:
    Scottish Borders
    Think most internationals of the time like a bit of heat to start unless they are already hot.
     
  10. Indeed it does have a popping sound when it first fires into life. Also it is hunting a little on tickover. And it is also hunting when it isn't given any welly on the throttle, but in my opinion this is perfectly normal for an inline pump.
     
  11. Yes hunting is characteristics wouldnt worry to much of that,
    The popping can either be valves or the combustion chamber the inserts crack and can also allow the chamber to turn and drop.
    Had one a few weeks ago let go fell down onto piston made mess and rammed it back into head it was blocking the injector nozzle.
    It ran nice on quater throttle and above
    But an absolute pig to start
    Was cheaper to get a new head than repair old one put a full engine kit in to starts like new now
     
    tomlad and Petetheploughman like this.
  12. Mur Huwcun

    Mur Huwcun Member

    Location:
    North West Wales
    One of mine is useless at holding back down hill, i,e the governor just does not want to do it's thing. Have checked the diaphragm, venturi pipes, inlet manifold gasket, the air filter and flexible hose. Everything seem in order but it will run away down hill. Any one any suggestions for that one bar the swan vestas!!!!
     
  13. Ley253

    Ley253 Member

    Location:
    Bath
    Throttle butterfly worn, and not sealing? Excess play in linkage?
     
  14. Mur Huwcun

    Mur Huwcun Member

    Location:
    North West Wales
    How tight a fit should the butterfly be? Both seem the same plus similar to another manifold I have that came from somewhere. Stupid question, but should I close the throttle when going down hill? Not so easy on PTO work. 275 was pretty useless on the conventional baler going down!!!
     
  15. Ley253

    Ley253 Member

    Location:
    Bath
    Butterfly should be a very good fit, with no wear in the bearings. I have been told that general engine wear can cause this, worn valve seats can lower manifold depression, for example, as the cylinder charge is blown back into the manifold. Tight valve clearances on the inlets, and wide on the exhausts can also cause manifold pressurisation, this shows up by some very strange noises being heard from the air inlet area.
     
  16. Mur Huwcun

    Mur Huwcun Member

    Location:
    North West Wales
    Will have to investigate this further. I did some work on the engine few years ago, cylinder hone, new rings, new shells, checked and lapped the valves in and the injector pump had 4 new elements. It starts much better now and pulls much better. Just before the mini refurb it could be parked on the yard in gear and would slowly roll forward with the engine turning over!!! Starting it when warm was a tow or bump start affair aswell!!! It's what happens when you buy then out of a hedge for £100 for parts and then decide it would be a shame tto scrap it.....,,
     
    tomlad likes this.
  17. Ley253

    Ley253 Member

    Location:
    Bath
    You could put a plough on, and do Sarn match. I too, have fallen into the too good to scrap trap! I have a Fisher Humphries trailer plough that I bought to save it from the scrap man! Never get to use it, the world style kit is so much easier to transport for one thing.
     
  18. Mur Huwcun

    Mur Huwcun Member

    Location:
    North West Wales
    I'm no ploughman by a long way but I do have a yellow Bamford/KV three furrow that I've adapted down to two!! Just need a few miles on the beach to shine it up!!! Oh, and maybe a vari touch top cover for the tractor!!!
     
  19. Ley253

    Ley253 Member

    Location:
    Bath
    leave the tractor alone, and put a landwheel on the plough!
     
  20. Mur Huwcun

    Mur Huwcun Member

    Location:
    North West Wales
    There's a front one on it but it's shaft will need altering now as it's 'lost' a section that was running to the third furrow
     

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