Why different firing order on TB42 & TD42 ??

Submitted: Sunday, Mar 09, 2003 at 11:32
ThreadID: 3730 Views:20936 Replies:1 FollowUps:1
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Anyone know why the firing order on TB42 is 153624 but it is 142635
on TD42 ??
Also, which pair of cylinder are in same position 1&6, 2&5, 3&4 ??
Are they same on both TD42 and TB42 ???
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Reply By: GaryInOz - Sunday, Mar 09, 2003 at 20:46

Sunday, Mar 09, 2003 at 20:46
I honestly don't know much about it, but looking at the firing order one is the reverse of the other. Could have something to do with the drive to the injector pump (do they use the same type of pump or is on the "rotary type' while the other is the "conventional type"?).
AnswerID: 14740

Follow Up By: IAMGQ - Sunday, Mar 09, 2003 at 21:28

Sunday, Mar 09, 2003 at 21:28
No. As long as it is a Patrol 4.2 diesel engine (TD42), their firing order is 142635 (both inline and rotatry pump).
But on petrol engine, it is 153624..........and this make me curious !
FollowupID: 8918

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