Dizzy wear on Lucas 22 D6

[daverclasper]

Hi.  A few questions please.

Have some wear on the driving dog tongues/teeth. Shiny metal on lower halves and a bit of a wear lip/ridge.

Also a bit of play between the driving dog body and the fastening pin when in situ on the shaft.

Also bit of wear on the points post.

Is this usual/acceptable?.

Thanks

Dave

 

[Guest]

Hello Dave,

Wear on the shaft will have a knock on effect with the dwell - more the wear, the more the dwell will fluctuate and this will have a knock-on when it comes to set the timing up.

IIRC, if you change to electronic ignition (i.e. fit a unit within the dizzy) this will side step the issue of shaft wear and your dwell will become stable.

The other option is to buy a fully electronic dizzy OR live with what you have.

Regards.

Richard.

[daverclasper]

Thanks Richard. The actual bearings in the dizzy, (cam and bottom) have no/minimum play, so would this still affect dwell?.

I was more wondering about any other possible issues caused by excessive wear in the dizzy drive and the Driving dog area?.

Cheers, Dave 

Edited November 15, 2019 by daverclasper

[Pete Lewis]

the dog has been clattering around for 40 years  some marks and pad wear is going to happen , glad there is little shaft wear, keep it oiled 

any play in the drive can obviously show up as a jumping strobe marker , but i wouldnt worry too much about it , the drive dog must  have some   clearance or you  would never fit the two drives  together ie  dropping the dizzy into place in the cam gear 

Pete

[daverclasper]

Cheers folks.  I love the real world info you often, just can't find in manuals etc.

Dave 

[daverclasper]

Just another question please.

This dizzy is a spare I bought very cheap. As appears to be in good nick  (bit better than my current one) and also included what appears to be a good cap, leads etc..

It apparently  came off a mk1 2litre Vitesse (which I have) and the body part no is correct.

It has what looks like the no 8 degrees stamped on the cam plate, just checking this is correct for this dizzy, as can't find this info anywhere.

Thanks, Dave

[Pete Lewis]

will have a look in the morning   8 sounds a bit shy   thats only a max 16 deg on the crank  when you need around 28/32deg  so would expect a 14/16 stamp.

whats on your orig one ???

 

[daverclasper]

Cheers Pete. Don't  know at the mo, without taking it apart

[Pete Lewis]

dave whats the  spec  number on the case ?

there are some eg 41168  with a 8-10 max dizzy advance 

this gives x2 at the crank plus the static  so that gives 16 / 20 + 10    26 to 30deg  

i was half a sleep on the 17Deg  quote 

Pete

 

[daverclasper]

Thanks Pete.  Dizzy on car and new one are both 41168 B, so that's the correct cam plate I think.

Cheers, Dave