RDWILLI@VM.SC.EDU wrote:
>
> Replaced the points, (gapped @ .015), condensor, cap, rotor, etc. upon
> trying to crank, all i got was a hellacious backfire. set the front
> piston to TDC with the crank pulley, pulled the distributor to check for
> any strange damage, and upon finding none, put it back in. problem:
> had to re-route the wires to the cap in order for rotor placement to be
> at the first cylinder. one is now where four was, three where two, four
> where one, and two where three. does the drive dog only go in one way,
> or should i be able to turn the rotor 180deg. to put "one" back where it
> originally was?
>
> the car runs now, with no backfire, but it seems quite odd to me that a
> tune-up would cause a 180deg. shift in the firing order as it was
> prior to the tune-up. any help would be greatly appreciated. i have
> yet to try to set the timing, as i'm not sure of what i should do
> concerning the rest. please pardon if this is a stupid question, but
> this 73 B is my first experience with anything other than electronic
> ignition. BTW, the car sat for 2-3 years prior to my purchase of it,
> and ran surprisingly well before my attempted tune up. its running again
> after my attempted tune-up, just in a slightly different order...
> suggestions?...i'd really like to set the timing in the next couple of
> days, but would like any opinions/suggestions/etc. prior to doing so.
>
> thanks in advance,
> robert williford
> '73 mgbSounds like you reinstalled the distributo 180 degrees off. This can
happen when the innards turn while the dist is out of the car. When you
put it back it then become necessary to turn the outside to match.
Suggest you pull the dist out again and turn the dog gear at the bottom
180 degrees before putting it back in. That should set you
straight.....I think.
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