Dwell Angle

[rover3l123]

Does anyone know what the points dwell angle should be for the Rover P5 mK11c

I have searched the forum but did not get any hits.

[dmaxwell]

My workshop manual doesn't list a Dwell angle but it does say the points gap should be .014" to .016".

David

[Phil Nottingham]

Dwell for a 25D6 dizzy is 35º +/- 3º ie Mk2's onwards. Mk1's with earlier DMBZ6 dizzy is 38º.

These are standard Lucas settings

[rover3l123]

Thanks, I set it yesterday, it was quite a way off. It runs much smoother now and I also took the opportunity to fine tune the mixture. I am at the point where I can balance a threepenny bit on the air filter without it falling over when the car is at idle.

I still have some small problem with the throttle linkage as it idles too fast but I can get it back to normal by blipping the throttle quickly.

Weak spring maybe?

[Phil Nottingham]

Good - may be the spring bracket is bent? Too string a spring can be tiresome and make smooth driving dificult. Worth try it though

[Deleted]

I know you ca get proper dwell angle readers but could it be done by the way descibed below.

Remove dizzy cap
Plug a spark plug directly in to the coil out put and connect the plug to earth.
Rotate the enine until the spark.
Mark the crank pully.
Rotate the engine again until the next spark.
Then mark the crank pulley again.
Take the degrees move on the crank pulle and divide by 2. (because the crank rotates twice to every cam/dizzy rotation.)

Ive never heard of it being done this way but by logic, it should work.

[Deleted]

just realised that only gives you the time between sparks and not the time the points are actually closed. Ill have to rethink...