Identifying a Lister

Discussion in 'Help Wanted' started by ausdok, Oct 3, 2007.

  1. ausdok

    ausdok New Member

    Hi I have just purchased a Lister 8 hp engine with the engine number 3239 and it has a Bosch Z type 22 flick magneto. The head looks like a N type and the flywheels are 31 inches in diameter and 4 and a half inches wide. It is fitted with a large petrol/kero carby. any help on identification would be appreciated Thanks Ausdok
  2. miley_bob

    miley_bob Member

    If its a pet/par version its most likely a P type, the N's were straight petrol versions. Do you have any pictures of the engine?
  3. gazmill

    gazmill Member

    Hi It sounds like you've got a early Q type to me, as far as i Know the P and N type's developed 6-7 HP and the Q and R types catered for the 8-9-10 HP range.

    I would love to see a pic

    Cheers, Gary.
  4. ausdok

    ausdok New Member

  5. gazmill

    gazmill Member

    Hi,Thats a really nice engine you've got yourself there
    its alister Q type with the early style vapouriser

    by your serial number i would think it was built circa 1911.

    Regards Gary
  6. BK

    BK New Member

    Just to give you an idea of the size of the beast, here's one of the engine and the owner, :lol:
    BK :twisted:

  7. ausdok

    ausdok New Member

    Thanks for the information it seems the further I look the more it becomes confused Ian States a P Type 1910 -11 ,The ifo here is a Q type, and David Edginton says either a N type or a R type, he states that the engine was consigned on 16/6/11. I am open to suggestions how to solve this issue, I note BK,s comment about the beast and I am sure he means the motor!!! Thanks Ausdok
  8. ausdok

    ausdok New Member

  9. gazmill

    gazmill Member

    Hi the best way to tell a P and R type apart is the size of the flywheels yours in my opinion has Q type flywheels so theres a good chance it left the factory with these fitted.

    Heres a link to a pic of my P and Q types together so that you can see the difference between the flywheels on the two engines. ... _photo.php

    Regards Gary
  10. miley_bob

    miley_bob Member

    Gary are you sure about the HP of the N type being 6-7? I am sure I saw an N type at a sale earlier this year that was advertised as 8HP.


  11. gazmill

    gazmill Member

    Hi Mike, I think the very last N types with the detachable head could develop 8HP i've not seen one though.

    Intrestingly my R type is of a similar age to Ausdok's and is also an 8HP it makes me wonder if his engine is an R thats been converted to Q spec?

    Cheers Gary.
  12. miley_bob

    miley_bob Member

    This was a 1916 N type, and im certain that the plate read 8HP, though I could be wrong. Intrestingly it did have the later type split head, but after talking to the owner, it had apparently been fitted in 1945 due to the original suffering severe frost damage. it is possible that the plates could have been swapped as well I suppose.
  13. boblester

    boblester Member

    Our N type is 8hp and is the detachable head later style so your correct there allthough I am sure listers probably over rated a a few early models rpms`s to squeze a little more out .

  14. ArthurG

    ArthurG New Member

  15. gazmill

    gazmill Member

    Mike it's most likely that it was 6HP like Arthurs but as we've seen nothings set in stone with these things :).

    The other thing to bare in mind is that a parrafin engines HP is normally less than a straight petrol model,
    So i would be pretty certain that an early 8HP parafin engine wouldnt be a P type. According to D E's book know your Listers the P type he quotes Prior to early 1920's was built in 6HP size later followed by 7HP and finally 8HP by the early 1930s.

    The only way to be sure without doubt what model this is, is to lift the pot off and measure the bore a P has a 6inch bore whereas a Q will be 6 7/8.

    HTH Regards Gary
  16. ausdok

    ausdok New Member

    Hi Thanks all for the info .I emailed thr pictures to Dave and he agrees with 99 % certenty that it is a Q type engine. He also said that it was a very good example of an early vaporiser ,and that there where not to many about. I am open to feedback re David's comments .Does any body have a manual for thr Q type engine. Is there an other way to check to bore size without removig the head . Thanks Ausdok
  17. BK

    BK New Member

    Go on Rudy, hire a crane to lift the barrell off!!! :lol: :lol: :lol:
    BK :twisted:
  18. gazmill

    gazmill Member

    Ausdoc, you can probably get a rough measurment at the skirt of the piston at BDC with the crankcase door removed.


    Regards Gary..
  19. ausdok

    ausdok New Member

    Hi Gary I have recieved an email from D.E after sending him the photos and he agrees with you that it is a Q model (99%) sure and he said that to be completly sure I would have to measure the piston as you said. Well Done and thanks for your info. He also said that it was dispatched on the 16/6/11 Couldyou point me in the direction to get a manual for this engine and also some info re the vaporiser Thanks again for all the feedback from this forum regards Ausdok
  20. gazmill

    gazmill Member

    Hi Ausdok. I'm afraid i cant help with a manual there may be one on this site in the manuals section.
    I'm not familier with your vapouriser either i dont have one with that type fitted, wish i had though :).

    I know of a couple of Q types here in the UK similar to yours but i doubt i'll see the owners now till next year to ask them details.

    Good luck.

    Regards Gary

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