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Thread: HKS700 engine

  1. #31
    Co-Pilot goldrush's Avatar
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    As I understand it the HKS700 engines in the UK have suffered regularly with dropped/bent valves and valve seats coming loose. The US engines have not suffered from this using different heads valves etc. (maybe simply because they are of later manufacture?)
    Wally Hayward


  2. #32
    Co-Pilot Randombloke's Avatar
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    Quote Originally Posted by William View Post
    I've struggled to get a comparison of costs of each engine - would appreciate points in the right direction.

    Debate or discussion? Does any one really mind?
    Older HKS engines in the UK were 500 hours TBO, then I think it went to 800 hours, maybe it's now 1,000 hours.

    I used to source HKS spares from Conair Sports, but they have closed their doors now. think it was a 50 hour oil and filter change.

    Fuel burn even with a draggy AX2000 was about 8.5 l/h.

    Where the 582 scores is not in the lower purchase price, but in the massive availability of spares and the opportunity for you to take your engine to the likes of Simon Worthington or Gary Masters if you don't want to fix it yourself.

    It also scores because there are already several people flying that engine in the Merlin.

    Quote Originally Posted by goldrush View Post
    As I understand it the HKS700 engines in the UK have suffered regularly with dropped/bent valves and valve seats coming loose. The US engines have not suffered from this using different heads valves etc. (maybe simply because they are of later manufacture?)
    Maybe the continued use of the HKS Stateside saw them through teething troubles and into the mature phase of their use?

    Apart from the AX2000 and P&M Quantum I've not seen an HKS on anything else in the UK.

    Quote Originally Posted by Russ_H View Post
    Hello Peter and Peter and.......
    Agreed, you couldn't make it up, could you?
    Steve U.
    PG, HG & microlights
    "Weekend bimbler, day to day car driver & genuinely undeserving Southern oik who has never done anything of any worth"


  3. #33
    Co-Pilot sssdu01's Avatar
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    Quote Originally Posted by Russ_H View Post
    Hello Peter and Peter and.......
    He just cant help himself .... have pity on him as he isnt very good at hiding


  4. #34
    thebarb
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    Quote Originally Posted by sssdu01 View Post
    He just cant help himself .... have pity on him as he isnt very good at hiding
    So which identity are you now accusing him of being?


  5. #35
    Wannabe Pilot john murphy's Avatar
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    Hi All
    Please remember the R582 is proven and up and running in the Merlin.
    We in the UK must follow the SSDR 300kg max take-off weight or put the money up to get it through the permit system in the UK.
    Regardless of what people may think of either engine, weight is the critical factor.
    My aircraft has come in the lightest to-date which puts me close to the max take-off weight limit.
    I have been informed that the HKS needs radical alterations to the structure and cowlings just to get it fitted.
    I have also been informed that the factory are not that keen on the HKS installation.
    Chip Erwin's web site http://aeromarine-lsa.com/ is a fantastic resource with lots of excellent video footage.
    However as yet I don't think their HKS aircraft has flown and they have the advantage of higher weight limits than our SSDR category in the UK.
    Therefore if you wish to stay SSDR your only viable option in the UK is the R582.
    Now a good thread would be how to get the best out of the R582.
    Any takers

    John


  6. #36
    Captain Dave Morton's Avatar
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    Quote Originally Posted by thebarb View Post
    So which identity are you now accusing him of being?

    It''s not worth the effort Peter...


  7. #37
    Job_CF
    Guest Job_CF's Avatar
    Quote Originally Posted by William View Post
    Debate or discussion? Does any one really mind?
    I don't mind either. Both can be positive and informative.
    Better not to stray away from that
    Last edited by Job_CF; 12-01-18 at 13:41 PM.


  8. #38
    Co-Pilot garry's Avatar
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    Been a bit quiet without him/them


  9. #39
    Wannabe Pilot john murphy's Avatar
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    News from over the pond, The first American 51% owner build Merlin with HKS700E takes flight.
    http://aeromarine-lsa.com/first-usa-.../#comment-9339.
    About 10kg heavier than their R582 which was its self heavier than any of the UK versions.

    John


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