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AlexF2003

5795 Posts
Member #: 80
AFRacing LTD

Newbury, Berks

12th May, 2007 at 10:04:33pm

Heres an interesting problem for you...

Finally got my new engine for the glittery mini running this afternoon.

It runs fine at fast idle on wards but at idle is hunts really badly.

I think the fault is ignition related as I have sealed up anywhere that air could get in (to the extent of removing all the IC pipes and the turbo control and even the plenum!). The other thing that points to the ign is that it seems to be an exact point in the rev range where it drops into this mode - soon as you are above that number it runs cleanly.

Sadly I don't know the revs as the rev counter is not connect (yet). But I would guess its rough below 1500 rpm.

Alex

AlexF

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Bermingum

12th May, 2007 at 10:09:32pm

Hi,
What igntion system are you running?
I've noticed with my setup if the toothed wheel runs out a little, in certain parts of the rev range it'll only run on 2 cyls!
Cheers,
Gavin :)

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AlexF2003

5795 Posts
Member #: 80
AFRacing LTD

Newbury, Berks

12th May, 2007 at 10:20:25pm

arr sorry its on stock metro turbo dissy

the MJ stuff is there just not wired in yet - I want to run it on both for development reasons :)

Alex

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Bermingum

12th May, 2007 at 10:26:01pm

Hi,
Could be the module or pick up.
Is it worse when warm?
Cheers,
Gavin :)

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AlexF2003

5795 Posts
Member #: 80
AFRacing LTD

Newbury, Berks

12th May, 2007 at 10:33:01pm

its the same hot or cold

module isnt getting hot - I had one that use to muck around and get proper hot.

But I was thinking the same thing... I have a spare dissy I can try tomorrow/next month lol

ALex

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Bermingum

12th May, 2007 at 10:44:49pm




On 12th of May, 2007 at 10:33pm AlexF2003 said:
 I have a spare dissy I can try tomorrow/next month lol

ALex



Hi,
No rush then? LOL
Cheers,
Gavin :)

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Tom Fenton
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Rotherham South Yorkshire

12th May, 2007 at 10:53:12pm

Worn dizzy drive, cam chain? Spark scatter?


On 29th Nov, 2016 madmk1 said:

On 28th Nov, 2016 Rob Gavin said:
 I refuse to pay for anything else


Like fuel 😂😂

mattyking

173 Posts
Member #: 873
Advanced Member

Thatcham, berkshire

13th May, 2007 at 10:04:37am

i had a similar problem when i was using a dizzy i thought it was odd as it wouldnt muck about under load. it just wouldnt idle properly changed many things and finally then changed the module with a mate and that was the problem. the module. hope that helps

AlexF2003

5795 Posts
Member #: 80
AFRacing LTD

Newbury, Berks

13th May, 2007 at 10:45:12am

On 12th of May, 2007 at 10:53pm Tom Fenton said:
Worn dizzy drive, cam chain? Spark scatter?


Doesn't seem to be any slack in the dissy or its drive - and its the same dissy I've used before on the racer, I know thats not a good enough reason to exclude it from being at fault though.

It won't be the cam chain - its belt drive :)

Now you mention spark scatter I'll double check the dissy cap and ht's in case its cross firing or anything odd like that.

Oh and I will be chaning the module/dissy too

thanks guys

Alex

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Joe C

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Carlos Fandango

Burnham-on-Crouch, Essex

13th May, 2007 at 02:42:52pm

like Tom says it could be spark scatter, it might be worth looking at the bobweight spring's sometimes they develop a bit of slack or get sticky, that can cause this symtom.

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/


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