IceCream in expansion vessel.

[andybond]

yeah , tried that James . Can get it to idle perfectly , but once about 4k still misses.

Set it all up again today and used lots of swearing and super close looks at TDC marks etc.

Going to take it off on a run in about 1/2 hr.

Cover your ears young James , if it doesnt work you will hear some new swear words.

[andybond]

Nrg !

Didnt work.

Felt smooth , then hesitated and stuttered at 4500rpm.
Ill make it adjustable.
How do I know which way I need to turn the dizzy to dial it in ?

[5teve L]

Has it just developed this since the headgasket went ?
Also what did Brigsy say about the carb, was it all good ?
I assume you have the dizzy drive gear in & not a tooth out, it's a right PITA to set sometimes, I used to use a headbolt IIRC & you need to make sure you get it so it's horizontal (or was it vertical, been a while) as you look at it but I forget which has to be left & which right as it has one cut out larger than the other doesn't it ?
I assume also you have tried a working carb or had wideband on it just to eliminate the carb.

[andybond]

I had this issue before swapping out heads .

I think the carb is fine , Brigsy hasnt given it the once over yet.

No AFR either  :oops:

I swear its down to timing. I reckon Ill have to make it adjustable and move it mm by mm until its mint ..

[fordy]

is the aei vac unit ok?

[andybond]

AFAIK yes ..

[andybond]

Any way of testing ?

I still reckon its the timing , as it did it when I did the engine swap , previous engine was mint ..

[Ash-Lee]

Mines doing this!

1st and 2nd gear is fine, 3rd gear it stutters, sometimes bangs, and plumes of black smoke out the back. Almost as if it isn't burning the fuel very well at all.

Cap + Arm, Plugs and leads are all new as well.  

[andybond]

I am getting a spare AEI wednesday so Ill let you know if that fixes mine ..

[andybond]

While we are at it Ash-Lee , what have you changed recently ? - if anything ?

Trying to work out a pattern ..

[Ash-Lee]

New cap + arm was the most recent.

Just before that was the fuel pump, but it was missing before that was changed aswell. I had decided the missing was down to the worn out cap, but the new one has made no difference at all.

[andybond]

Ok , I changed my cap + arm + leads .

No fixy there.

Going to borrow from the leg end that is Dean a spare AEI and a TDC sensor from a known good.

[andybond]

I have made some KERAZY gaffs in the past , but there is no way I have fudged up timing 27 times in a row.

[Ash-Lee]

Cars driving me up the bloody wall this year.

3 weeks of welding for it's MOT.
Lasts a week then it kills a fuel pump.
And now it generally runs like a s**t.

Meh!

[James5]

Andy, trust me adjustable dizzy will sort it, See if Dean has my old one lying about still if so use that.  it does sound like it's just a tad out.


I take it you have no ice cream mix anymore? was it the head?