5 replies to this topic

[Abbot]

After a very long delay and a complete rebuild of the engine on my LHD 998 Mini from 1998 the engine burst into life.

 

The engine runs but there is something wrong with the set up of the carb.

 

There is fuel OK

There is a strong spark  OK

I have set the timing to 8 deg BTDC using my strobe gun  OK

 

The engine starts with a bit of choke and runs smoothly

 

I noticed that the when I pushed the choke knob back in the the lever on the carb does not go fully back to its no choke position.

When i move it back the engine stops and is then difficult to start again.

 

When the engine was apart i did service on the Carb and fitted a new wax stat jet assembly

 

Any advice on what to try to solve my problem would most welcome 

 

Abbot

[sonscar]

Watch the linkages move carefully and look for binding.Do waxstat need the jet centering.Is the pipe to the jet free to move?Just thoughts,Steve..

[Abbot]

An additional point - I set the timing using my Gunson Timing light then I realised I set the timing to 8deg BTDC.

 

Lokking again at the instructions for the gun and Haynes manual it says dynamic timing should be done with the Vacuum Pipe disconnected.

 

If I disconnect the Vacuum pipe the engine stops   Any suggetions

[andyapanel]

You need to plug the vac advance when you pull it off the distributor. A small bolt/machine screw will do the trick. I also put gaffer tape over as belt and braces.

 

Loosen the distributor clamp slightly.

 

Increase the idle speed to 1500, move the distributor to line up the dots on the pulley and pointer.

 

Bon chance.

[Abbot]

You need to plug the vac advance when you pull it off the distributor. A small bolt/machine screw will do the trick. I also put gaffer tape over as belt and braces.

 

Loosen the distributor clamp slightly.

 

Increase the idle speed to 1500, move the distributor to line up the dots on the pulley and pointer.

 

Bon chance.

Thanks 

Just to be clear i need to block the vacuum pipe going to the manifold?  Is that becuse an open pipe leaks additional air into the inlet.

[andyapanel]

1. Yes.

 

2. Yes

 

Check that the vac advance tube does not leak, either. It happened to me last week.