Home Forums General Technical Help Worn Cam.. Reprofile or Candle Stick ?

  • This topic has 3 replies, 2 voices, and was last updated 6 months ago by JAN.
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  • #78680
    brianw
    Participant
    Club Member

    I got my old engine at 48K miles, & noticed the number one exhaust valve didn’t seem to open as much as the others. The engine lasted until 111K miles, & spend 20 year resting since.
    Now I have extracted the cam & can see the No1 exhaust cam lobe is warn. Also all the cams are domed ( the cam followers hollowed & some broke)
    ++++++++++++++++++++++++++++++++
    General diameter of other exhaust circles 28.2 (1.11 inch) Max Cam lobe heights 33.1mm /34.0/33.80 (1.31inch)
    But Max height of No1 cam lobe is only 30.65mm (1.20inch)

    So where as the best exhaust lift was 5.8mm.. No1 Exhaust only lifted 2.2mm (86tho’ inch). Not ideal !
    ++++++++++++++++++++++++++++++++++

    With an aim of rebuilding a standard engine….
    Is that too much damage to “reprofile” ?
    Shall I make it into a steampunk candle stick?
    To get another cam, will later xflow/fiesta/ka Ford Kent cams fit ?

    #78681
    JAN
    Participant

    Worn cams and followers, and broken followers, while not common are far from unknown. Personally, I would replace the cam rather than have it reprofiled, but check lobe height, obviously.

    I’m running a crossflow camshaft in the Prefect and it works well. But be aware that the transverse engine blocks, and camshafts, are a few inches shorter than the inline engines so you cannot fit those.

    #78682
    brianw
    Participant
    Club Member

    Thanks JAN so is crossflow is the 711M block ? .. 711F also appeared in my search, (Is that a 1600 cortina?) . Would that be wrong ?

    #78683
    JAN
    Participant

    The numbers are not my specialist subject, but I think the 711M block was a high performance variant of the crossflow 1600 one. But really, you need to ask others on this one; after 105E/109E/113E/120E, I get a bit lost!

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