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Tappet rollers install

Discussion in 'Series Land Rovers' started by Nope, Aug 14, 2019.

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  1. Nope

    Nope Member

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    Hi,

    I'm overhauling my 1972 Series 3 2.25L petrol engine and i'm at the stage of reinstalling my tappet rollers. The manual says: "Fit the tappet rollers with the larger chamfer towards the front of the engine". Because i'm not English and the word "chamfer" was unknown for me, i looked it up but i'm still not sure i got it right. I assume that it means that the side of the roller with the largest cone shaped "hole" in the middle (or the smallest brim) must face towards the front of the engine. But when i watched the video "Tappety Tappets - part 1" on Youtube, it looks like the other way round (at 9:30 in the video). Is my assumption right or not?

    Thank you in advance!
     
  2. Henry_b

    Henry_b Well-Known Member

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    sloping surface at an edge or corner is the definition, ;)

    The rollers have "slopes" to 'em and the "larger" more defined Slope if you like you fit facing the front of the engine.
     
  3. steve2286w

    steve2286w Active Member

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    Chamfer is the 45 degree edge removing the sharp corner, the top side looks bigger than the bottom


    E8A3BE22-6F7E-4FB4-9BBA-888721179FAB.png
     
  4. steve2286w

    steve2286w Active Member

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    I would guess the reason for it is only to help you ensure it goes back the same way to match the particular wear pattern on the cam lobe
     
  5. Nope

    Nope Member

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    Thanks for the help guys,

    I also think that the reason for it is to ensure it goes back the same way and that's what i would like to achieve but failed because i stored them in the way i retrieved them and took them apart for cleaning not overseeing they are a-symetrical.

    Thanks for the definition (i got that ;) ). But the 45 degree edge of both sides is the same. The only diffence is the cone shaped "hole" in the middle. One side is larger than the other side. Because the rollers are in my shop now, i made a 3D sketch of both sides. I hope you can see the difference.

    My assumption is that side number 1 has the "larger chamfer" and must be facing the front of the engine. Side number 2 (the side in the picture Steve2286w posted) to the rear. In the video i mentioned you see that side number 1 is facing to the rear of the engine but offcourse it could have been assembled wrong earlier. Can you confirm that my assumption / interpretation of the Land Rover manual is right?

    upload_2019-8-14_11-1-39.jpeg
     
  6. steve2286w

    steve2286w Active Member

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    great 3d images is that autocad, i think youre right these are different to the 200tdi ones which are plain. but the larger dish side to be used to face front as you say
     
  7. steve2286w

    steve2286w Active Member

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    On the video he may may removed it and put it back in wrong then taken out again on camera
     
  8. Nope

    Nope Member

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    Thank you Henry and Steve :) for helping me out with my English ;). Much appreciated!

    BTW, i made the 3D image with tinkercad, a web based and fairly easy to learn 3D design tool (tinkercad.com)
     
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