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Author: Subject: Setting Ignition...
johnemms

posted on 2/11/11 at 10:49 AM Reply With Quote
Setting Ignition...

Ok.. so ...

I disconect the vaccum advance and block off manifold conector
I use strobe to set ignition to TDC 0 degrees at 650rpm
I reconect vaccum and check with strobe
It reads 12 degrees - 800rpm
Mechanical advance seems to start about 1000rpm

Turn off engine - restart - no kick back - seems ok..

have I missed anything?

cheers

jon


1690cc crossflow - Trying a single weber DCOE 40 - 32 choke

[Edited on 2/11/11 by johnemms]

[Edited on 2/11/11 by johnemms]

[Edited on 2/11/11 by johnemms]

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MakeEverything

posted on 2/11/11 at 10:56 AM Reply With Quote
Sounds about right to me.





Kindest Regards,
Richard.

...You can make it foolProof, but youll never make it Idiot Proof!...

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johnemms

posted on 2/11/11 at 11:39 AM Reply With Quote
Cheers... having a blonde moment....
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Dingz

posted on 2/11/11 at 01:25 PM Reply With Quote
Surely you need some static advance not just running at tdc? ignore the fact the vacuum is giving you some when it is connected.





Phoned the local ramblers club today, but the bloke who answered just
went on and on.

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johnemms

posted on 2/11/11 at 02:12 PM Reply With Quote
Just a slight kick back on starting when hot..
starts and seems to tick over fine..
slight open of throttle - turn over - fires..

Strobe 650rpm - 0 degrees
connect vaccum - Strobe reads 12 degrees advance - 800rpm

I know what you mean - but if i set 12 degree static then conect the vaccum its way too much advance..

anyone else have any info?
cheers

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BaileyPerformance

posted on 2/11/11 at 02:19 PM Reply With Quote
quote:
Originally posted by johnemms
Just a slight kick back on starting when hot..
starts and seems to tick over fine..
slight open of throttle - turn over - fires..

Strobe 650rpm - 0 degrees
connect vaccum - Strobe reads 12 degrees advance - 800rpm

I know what you mean - but if i set 12 degree static then conect the vaccum its way too much advance..

anyone else have any info?
cheers


Hello,

you would expect any engine to kick back at a static setting of tdc. what engine is it and has it been modifed?

Where is the vac signal coming from? off the manifold directly?

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BaileyPerformance

posted on 2/11/11 at 02:30 PM Reply With Quote
Hello again!

Sounds like you have the vac connected to the inlet manifold, this is incorrect, it would normally be connected to the carb - on a drilling next to the throttle flap so the dizzy only sees vacuum at light throttle NOT at idle.

If you like call me 07967 222967 and i will explain what to do. Cheers Dale.

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johnemms

posted on 2/11/11 at 03:42 PM Reply With Quote
Cheers for the chat Dale..
All info taken on board.. vaccum now history..
Set static strobe at 12 degrees - runs fine - so far..
Will set maximum advance once i get a different strobe - not driving it yet ...

Just won a nice 'dial back' strobe on fleebay.. will be sorting the dizzy n timing out very soon !!! cheers Dale..



[Edited on 2/11/11 by johnemms]

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BaileyPerformance

posted on 2/11/11 at 05:33 PM Reply With Quote
No problem John, nice talking to you.

Good luck with your project!

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