13-08-2020, 07:28 PM
Getting the timing right can be a bit hit and miss.
Both my cars have manual advance, so easy to play about with.
80 odd years on, the play in the drive train often means that the timing doesn't set up as in the book
Silly mistake that is possible: have you got the firing sequence right for the rotation direction of the distributor?
Sevens will run a bit, or backfire a lot, almost whatever the timing is.
Some distributors have the earth return through one of the screws holding the base down to the casing, which may be intermittent.
Others can develop a tiny crack in the connection on the base itself.
Both faults will give you erratic firing, and may not show up on a testmeter.
Both my cars have manual advance, so easy to play about with.
80 odd years on, the play in the drive train often means that the timing doesn't set up as in the book
Silly mistake that is possible: have you got the firing sequence right for the rotation direction of the distributor?
Sevens will run a bit, or backfire a lot, almost whatever the timing is.
Some distributors have the earth return through one of the screws holding the base down to the casing, which may be intermittent.
Others can develop a tiny crack in the connection on the base itself.
Both faults will give you erratic firing, and may not show up on a testmeter.