Classic cars forum & vehicle restoration.

[Gjneves]

Hy Guys,
After completed the electrical work and change all spark plug cable my morris don't Start. I think the problm might be from carborat.
I show you a small vídeo:
https://www.dropbox.com/s/ysv186xw0f8kvkj/20140204_191859.AVI

Any tips?
Thanks

Gonçalo Neves

[goneps]

It sounds as though it's trying to start but isn't getting enough fuel to keep running. You're not helping it by expecting it to run without operating the throttle; try working the linkage up and down through about 1/4" when the engine starts to fire.

Are you using full choke? On the SU carburettor the 'choke' control pulls the jet downwards to richen the mixture for starting. If the carburettor has a tickler (small button on top of the float bowl), press it down for a second or two with the fuel pump switched on to raise the float level.

Otherwise, try richening the mixture by screwing in the jet nut (clockwise, looking from underneath) by a couple of flats. If that doesn't work, try removing the air cleaner and partially blocking the inlet with your hand.

All this presumes that everything else is set correctly: valve timing, ignition timing, spark plug gaps, distributor leads in correct order, etc., etc.

Richard

[kevin2306]

i would be asking if it ran ok before the change over of electrical items, could be coincidental and actually be the carb but my money would be on a faulty new componant..i replaced the singers plug leads recently for a brand new set..they were total and utter cr@p.
bought a new old stock lucas set that fitted fine and work well.

kev

[ukdave2002]

I agree with Richard

My Morris Z van (same engine) is exactly the same when trying to start on cold mornings; there isn't quite enough choke even when its fully pulled out, and I haven't got round to adjusting it ....so when I need to start it at the moment, I flood the carburetor with the tickler and this gives the engine the extra rich fuel it need to fire up for those first few seconds..it fires up on the first couple of turns, then needs choke for about 60 seconds.

Great idea posting a video

Dave

[goneps]

[Gjneves]

Thanks for all replies,
Before I repair the electrical system the engine runs, whoever sincerely I don't remember if it run good, I know that's run. I don't touch in distributor,ignition timing, just confirm that have spark in plug, adjust the cap in distributor.
After this, the engine don't run and I think because the plug spark smell a lot petrol, have a petrol excess. I turn the jet nut by turning it anticlockwise to remove petrol but I have two nut and I adjust those 2 nuts equality and try to turn on engine without success how I show I fist post.

Regards,
Gonçalo Neves

[ukdave2002]

Hi

I have just noticed your location, ironically I am currently at a conference at the Penha Longa hotel near Sintra !

Whilst the weather here has been a bit damp, it's much warmer than the UK, but cooler than typical Portugal temperature , I am wondering if the car has only been used in the warmer months, that the mixture is on the lean side ?

Cheers

Dave

[goneps]

[Gjneves]

[goneps]

In terms of fuel mixture, "lean" means the same as "weak", ie. too little fuel for the volume of air. "Weak" is the English term, "lean" is preferred by Americans (shame on you, Dave!).

When you say there are two nuts of the same size, I think you must be talking about the float bowl attachment and the jet assembly locking nut (jet screw). The jet adjusting nut is concentric with and below the locking nut.

Time to put an end to this confusion. Here are the relevant pages from the Series E workshop manual.

Richard

[Rosco663]

Excellent work Richard

Even more informative than my SU Carbie book

Cheers
_________________
Rosco

[Gjneves]

Hy Guys.

https://www.dropbox.com/s/s61ks5o9jjmynjk/Original.AVI

After dismount and center de jet on carburator, I review the electrical system, i have spark in plug's, change litle degress distributor position, check the petrol pump but the engine DONT start....=( Do I missing something else?
Confirm that the (+) pol in coil connect to the A3 position control box?



Thanks,
Gonçalo Neves

[goneps]

All Series E cars were originally wired for positive earth. If the car is still positive earth then A3 should be connected to the negative terminal of the coil, ie. battery negative terminal to coil negative terminal.

Once again it seems to be trying to fire, which is what's causing the starter pinion to disengage. I repeat my earlier advice to 'tickle' the carburettor for 1-2 seconds to richen the mixture, and 'pump' the throttle while the starter motor is turning the engine.

Is the ignition timing correct? Points should open at Top Dead Centre (arrow on timing cover aligned with mark on pulley with no.1 piston on compression stroke). A good spark is of no use unless it's occurring at the right time.

Richard

[Gjneves]

[ukdave2002]