classic car forum header
Classic cars forum & vehicle restoration.
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Register     Posting Photographs     Privacy     F/book OCC Facebook     OCC on Patreon

Initial static timing
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> General Restoration Advice
Author Message
ukdave2002



Joined: 23 Nov 2007
Posts: 4267
Location: South Cheshire

PostPosted: Sat Feb 23, 2013 6:47 pm    Post subject: Initial static timing Reply with quote

Want to fire the mga up for the first time Smile it has an electronic distributor, any tips on an initial static timing?

I'm thinking of turning the engine over on the starter motor, no fuel without plugs in cylinders 2,3&4 and timing with a strobe?

Dave
Back to top
View user's profile Send private message Visit poster's website
Farmer John



Joined: 18 Feb 2010
Posts: 181
Location: Manawatu NZ

PostPosted: Sat Feb 23, 2013 8:03 pm    Post subject: Initial timing Reply with quote

Hello Dave.
6-8 degrees static is fine for starting up. With electronic ignition there is a complication in deciding ( by looking in the distributor ) at what point the spark is initiated, but I think your electrics ability is up to that.

John
Back to top
View user's profile Send private message
ukdave2002



Joined: 23 Nov 2007
Posts: 4267
Location: South Cheshire

PostPosted: Sat Feb 23, 2013 8:55 pm    Post subject: Re: Initial timing Reply with quote

Farmer John wrote:
Hello Dave.
6-8 degrees static is fine for starting up. With electronic ignition there is a complication in deciding ( by looking in the distributor ) at what point the spark is initiated, but I think your electrics ability is up to that.

John


Hi john

Its 5 degrees static timing for an MGA, but you cant simply do it with a lamp, when its an electronic distributer.

Dave
Back to top
View user's profile Send private message Visit poster's website
Farmer John



Joined: 18 Feb 2010
Posts: 181
Location: Manawatu NZ

PostPosted: Sun Feb 24, 2013 12:00 am    Post subject: Reply with quote

There will be a switch to make and break the circuit which will have a measurable current. Generally the cam replacement will have a number of fins. As the leading edge of the fin intersects with the leading edge of the sensor, that is when the spark will occur.
John
Back to top
View user's profile Send private message
ukdave2002



Joined: 23 Nov 2007
Posts: 4267
Location: South Cheshire

PostPosted: Sun Feb 24, 2013 11:19 am    Post subject: Reply with quote

Hi john

You are thinking of the dizzy's with optical sensors, my dizzy is hall effect. The dizzy needs to be turning to trigger hence the challenge for an initial static setting Confused

Dave
Back to top
View user's profile Send private message Visit poster's website
welshrover



Joined: 09 Aug 2011
Posts: 326

PostPosted: Sun Feb 24, 2013 10:03 pm    Post subject: Reply with quote

i just turn the engine over and turn the dizzy at the same time until it starts .if youve got a starter solonoid with the button on its easy ,or get somebody to turn the key. once running use a strobe light to set timing .5 degrees as stated before its the same as the oxford/cambridge etc.it works with electronic or points Shocked
Back to top
View user's profile Send private message
ukdave2002



Joined: 23 Nov 2007
Posts: 4267
Location: South Cheshire

PostPosted: Mon Feb 25, 2013 10:01 am    Post subject: Reply with quote

That's more or less what I did; I figured out where it needed to be within +/- 10 degrees, then adjusted it to get maximum revs before timing with a strobe:
http://www.oldclassiccar.co.uk/forum/phpbb/phpBB2/viewtopic.php?t=6134&postdays=0&postorder=asc&start=30

I was being careful as its a new tight engine, mixture only roughly set....with the wrong combination of timing and fuel mixture a new engine can get very hot very quickly Shocked

Dave
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> General Restoration Advice All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
OCC Merch link
Forum T&C


php BB powered © php BB Grp.