Results 1 to 5 of 5

Thread: timing a 30

  1. #1
    Join Date
    Aug 2007
    Location
    Fort Collins, CO
    Posts
    4

    Default timing a 30

    Could someone provide instructions how to time a 30? I have timed some old John Deeres and was wondering if it is a similar procedure?

  2. #2
    Join Date
    Nov 2006
    Location
    Colorado
    Posts
    550

    Default

    macoubri,
    I think you’ll have to find, first, which magneto, either the Eisemann GV-4 or a Bosch. OM should be along soon, I think he will have that information.
    Kelly
    Old Caterpillar Watch Fob.


    Without history, a society shares no common memory of where it has been, of what its core values are, or what decisions in the past account for the present circumstances.

  3. #3
    Join Date
    Jan 2008
    Location
    Piedmont, South Dakota
    Posts
    86

    Default

    We have always set the engine to TDC on any cylinder. Fire the magneto using the impulse , make sure you know which leadout it is firing so you can connect that leadout to the cylinder on TDC, then connect the magneto to the tractor without rotating either the mag or the engine. Make any matching adjustment through the coupling mechanism. Connect spark plug wires in order of rotation of the mag to the firing order of the engine (1-3-4-2 ?). The book has detailed instructions doing essentially the same thing. Hope this helps.

  4. #4
    Join Date
    Nov 2006
    Location
    Monterey Hills
    Posts
    214

    Default CAT 30 S & PS Firing Order

    CAT 30 S and PS series firing order is 1243. Bill

  5. #5
    Join Date
    Apr 2007
    Location
    Elkhorn, WI
    Posts
    3,827

    Default CAT 40 Timing is......

    When I set valve clearances on the 40 Gas, I noticed that the Magneto Timing is 1,2,4,3 (this is not the same as in the 35/40 operators manual). A quick telephone call confirmed this with a blanket statement of "All bigger Gas CATS firing order is 1,2,4,3".

Similar Threads

  1. D4 magneto timing to Pony
    By auscuscus in forum DISCUSSION
    Replies: 13
    Last Post: 11-06-2009, 06:17 PM
  2. 8C20 Timing Procedure
    By daron in forum DISCUSSION
    Replies: 1
    Last Post: 09-05-2009, 01:18 AM
  3. Timing marks for R5 4H785
    By bobk in forum DISCUSSION
    Replies: 2
    Last Post: 09-03-2009, 10:51 PM
  4. Timing On Pony Motor On D6 9u
    By woodycat in forum DISCUSSION
    Replies: 3
    Last Post: 07-02-2009, 11:14 AM
  5. timing a cat 22
    By notmuk in forum DISCUSSION
    Replies: 1
    Last Post: 05-29-2008, 12:27 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •