New Cam Timing,
Turbo Mini Forums

Picked up a Phase 2 Avonbar cam today, not a problem there, Although they had no timing discs, I have just ordered one.

Thing is I am used to working on Ford Engines and normally the TDC is indicated on the pulley, However on the mini engine there is no mark (Unless its the little hole that is on the pulley?).

So Can anyone advise me or tell me how they have done the timing on theres, I'm just paranoid about ruining a perfectly good cam.

If you look carefully on both the cam and the crank pulley you will see a small mark, about 2 or 3mm diameter. These need to be lined up from the crank and cam with the chain installed in order to set the timing correctly.
If you have got a vernier pulley, and access to a dial test indicator, it is possible to set the cam timing precisely.

There is a guide on how to do this in the "How To" section of this site.

No. Get the pulley and you will see what I mean.

Mini Haynes manual also tells you how to do it. Basic timing setting is NO different to standard. If you have a vernier pulley you can set full lift where you want it, if not you are stuck with what the two gears and chain provide!

Some further reading-

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=4769

No probs, good luck.

just like to add gal, tom.

that the mini STANDARD cam timing if you line the dots up is set at 110deg

the phaze 2 cam is set i think 107 or 108
full lift before tdc

please check this! so you need an 3deg offset key for the CAM if you are using the standard pullys you can get this key off mr avonbar

only 30 bob!

if your using an adjustable pully set the cam timing as specified
from the cam grinder
let us know how you got on gal

Edited by BENROSS on 20th Aug, 2005.

The Phase 2 cam achieves full lift at 110 Degrees.

Thats what is written on the data sheet from piper that comes with the camshaft.

So In theory I should just be able to use the standard pulleys as there already set up for 110 degrees then?

correct! gal

keep us posted on your progress

In theory, yes, you are correct.

However, in reality, the drillings on the gears are generally not that accurate due to manufacturing tolerances, so you will find that doing the timing from the dots will give you anything from about 105 to 115 degrees! I know this as I used to run in a race class where you were only allowed to use the standard components, but by mixing and matching a few different sets pretty much any figure was attainable!

In the interests of getting the maximum benefit from the uprated camshaft profile, a lot of people will time the cam in exactly using either a vernier pulley, or offset woodruff keys.