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Hydrolic lifters

Discussion in 'Engine & Transmission' started by cammokombi, Jan 16, 2009.

  1. cammokombi

    cammokombi New Member

    Messages:
    1,562
    Location:
    Melbourne Victoria
    My mechanic has advised me that when I find an engine for the cammokombi he will put hydrolic lifters in it. Can anyone explain in lay terms what the benifits of doing this are?
    Regards,
    Cammo.
     
  2. Dingostrategy

    Dingostrategy Active Member

    Messages:
    4,322
    Location:
    SW Vic ++
    No more tappet adjustment.
     
  3. StevieVW

    StevieVW Well-Known Member

    Messages:
    3,474
    Location:
    Somerset, Tasmania
    I'm pretty sure that it means that you don't have to do do valve/tappits adjustments every service the clearance is controlled with oil presure. They only came on the very late bays i believe.
     
  4. Kombi Kiwi

    Kombi Kiwi Member

    Messages:
    326
    Location:
    Stanwell Park, NSW
    Hey Everybody
    Can they be fitted to earlier bays?
    Cheers
    Glen
     
  5. StevieVW

    StevieVW Well-Known Member

    Messages:
    3,474
    Location:
    Somerset, Tasmania
    For the type four motors i thinks so. not sure about the type one's
     
  6. Yep type 4 is a big yes. Have run them for years. Engine is so much quieter and tappet adjustment all the time. you do have to change cam grind and also pushrods are shorter as lifters are longer.
     
  7. cammokombi

    cammokombi New Member

    Messages:
    1,562
    Location:
    Melbourne Victoria
    Ta!

    Thanks for that info guys.
     
  8. 66 deluxe

    66 deluxe New Member

    Messages:
    291
    Location:
    North Brisbane
    Hydraulic lifters are OK, but not the best they sustain a constant pressure on bothe the lifter themselves and the camshaft, were as a solid lifter has a slight relaxiation from constant spring pressures when on the base circle after it has finished on the ramp off the cam. I have dismantled a few hydraulic engines and the wear patterns on the cam and lifters are more severe than those on a solid lifter cam and lifters. If you go ahead with the hydro cam ensure you get good quality lifters and the correct camshaft, the shorter pushrods and make sure you get the solid spacers and washers that are between the intake and exhaust rockers. A hydraulic camshaft also has left lift than a solid. I personally won't use a hydro cam as i like to adjust my valve lash and can keep an eye on a vlave if it is stretching, if this is found, you have a chance to replace valve and keep your engine, with hydros no need to adjust valve lash and no telling if your valves are stretching.

    Damo.
     
  9. Alpal

    Alpal Moderator Staff Member

    Messages:
    9,034
    Location:
    Melbourne Bend of Islands
    Thanks Damo, good info. Were there many engines with hydrolic lifters? Never come across one myself.
     

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