5 replies to this topic

[Joris]

Hi all of you there,

 

First, a small introduction:

I recently bought a 1977 mini with al interior parts and engine from a late model Cooper with HIF44 carb. 

 

When I bought it it ran great. Though it needed to get a new MOT. This ended up in replacing a couple of parts and retuning the carb so the CO levels wouldn't be to high.

The mini passed the MOT passed with flying colours. Only there came a new problem, retuning the carb.

 

I have tried all of the techniques i could find without any result. 

The engine won't start on it's own, so it needs a little help from brake-cleaner. It will run when it's cold and keep running in idle -high idle though- without the choke, when the engine heats up the fuel filter doesn't looks like it get's a lot of fuel running trough it ending up in not working in idle with a hot engine, the only thing that helps is putting the idle speed up to 2000 RPM

 

In my opinion it should have something to do with the fuel/air mixture. Has anyone a good techinique on getting this right? Because I am left with hands in my hear shaking my head.

 

Engine info (pulled from Guessworks)

 

Source Vehicle :  Metro  Engine type & CC :  A+ 1275 cc Transverse mounted  Fueling :    Engine features :  A10 emissions Gearbox features :  Std. Ratio Rod Change gearbox with Pot Joints 

 

 

Thanks for your help in advance!

Edited by Joris, 05 January 2014 - 05:05 PM.

[Deanorch1978]

I would get it in a rolling road to sort out that.

[Dusky]

I would 'reset' all screws and start from scratch..

 

Vizard described how to adjust the carb ( so if you have the yellow bible look in it ) 

otherwise : 

[Joris]

@ Dusky,

 

That's the problem, I have tried that!

 

I'm going to pull of the carb, give it a good nice clean and see where that get's me.

 

Thanks anyways

[jaydee]

First check for air leaks, manifold, breathers and tappet clearance.

Then reset fuel mixture and idle speed.

Whats the timinig like and what needle you have in the carb?

[Joris]

Air leaks checked, manifold as well. 

She runs great when hot or cold at higher than 2000 RPM. 

 

The needle, I don't know yet...