18TCS Ignition Timing?

Information relating to the Matchless G85 500cc Heavyweight, AJS 7R, Matchless G45 and Matchless G50
Locked
norman_john
Member
Posts: 28
Joined: Thu Mar 27, 2014 10:35 pm
Location: Warwickshire

18TCS Ignition Timing?

Post by norman_john »

Hi Ladies and Gents,
I am in need of knowing where to find the correct timing for a TCS - I have a nice DTC so 0.000's before TDC is the easiest method for me, any ideas?
Thank you
John
User avatar
saltbox alf
Deceased
Posts: 2205
Joined: Mon Oct 03, 2011 12:25 pm
Location: Aude, France

Re: 18TCS Ignition Timing?

Post by saltbox alf »

It's in the books/ manuals, but I think you will find it's 10,98 mm or .43". That's a starting point , depending on what cams you have, engine condition , compression ratio,etc etc. Then road test and advance in stages to pinking occurs , then back off a bit. You really have to experiment, no two engines are exactly the same!
Allons-y, amis de Matchless et AJS
norman_john
Member
Posts: 28
Joined: Thu Mar 27, 2014 10:35 pm
Location: Warwickshire

Re: 18TCS Ignition Timing?

Post by norman_john »

Ah, books and manuals - sadly have not yet found any! Do you know of a good source? I have just been using the parts books for the 18CS as far as the cycle parts are concerned.

Thank you for the info on 0.43"! Much appreciated, and I can now move on a little further with the build.

John
User avatar
saltbox alf
Deceased
Posts: 2205
Joined: Mon Oct 03, 2011 12:25 pm
Location: Aude, France

Re: 18TCS Ignition Timing?

Post by saltbox alf »

Allons-y, amis de Matchless et AJS
Locked