Author Topic: My brain is no good (Read 3646 times)

bigjimmer · « **on:** April 04, 2006, 10:26:16 PM »

How do,

The breadknife was driving home tonight and she got to the top of our hill with the 126 (aircooled) stopped running. Fortunately she rolled down the hill to the house. I have been out there to try and start it, it turns over but doesn't sound like it's fireing. I have checked the electrics and they seem fine. The only think i can think of is the fuel pump, am i right? If so, are they expensive or hard to fit?

I'd appreciate any advice that could help at all.

bis13 · « **Reply #1 on:** April 04, 2006, 10:32:28 PM »

are the ht leads connected i have had one come loose before and does a similar thing also not a silly thing but has it got fuel in the tank? it happens.

Bruce · « **Reply #2 on:** April 04, 2006, 10:35:10 PM »

i also had an HT lead come off on my aircooled so it may be common, cetainly worth checking and a lot easier to cure than a new pump, my aircooled never had any pump problems in the few years i ran it doing about 250 miles a week.

bigjimmer · « **Reply #3 on:** April 04, 2006, 11:02:59 PM »

Well, i checked for loose leads but couldn't check for a spark as i need a second person to turn it over. It is cold outside so i will wait until morning. As for the petrol, the gauge shows half a tank but whats the best way of checking for fuel in case it's knackered? Thanks for the advice so far.

Chris Lakin · « **Reply #4 on:** April 04, 2006, 11:14:55 PM »

http://www.fiat126.co.uk/forum/viewtopic.php?t=751

mate read these above posts, all about fuel pump, non starting 126's usualy boil down to faulty fuel pumps.

hope you get it sorted!

regards

Chris

ChrisRLewis · « **Reply #5 on:** April 04, 2006, 11:16:49 PM »

Check for a spark at the plugs first.
After a good session of turning over and not firing the spark plugs contacts should be wet. If they are wet this suggests an ignition fault. If they are bone dry probably a fuel fault.
Hope that helps.

Good luck!
C

PaulB · « **Reply #6 on:** April 05, 2006, 02:10:22 PM »

If it suddenly stopped then I'd check the points - they can close unexpectedly and the car will then not start. If the points look fine, check for a spark at the plugs - you can use a bit of wood to reach the starter if its the pull-lever type. Remember to reset timing whenever fiddling with points. If no spark at plugs, work back through leads, cap/rotor, condenser, coil, wiring as that is both their order in the system and in the unreliability stakes.

Fuel system likewise - first check there is actually some fuel in the tank (clear fuel lines are handy for this, otherwise the pump test below or dip the tank - you should also be able to smell the engine flooding if you've been trying to start alot), pump, then carb.The pump is easily checked - disconnect the fuel pipe from the carb and direct it into a cup - then get someone to turn the engine over - no fuel and its a blockage or dud pump. A pump takes minutes to replace. If fuel flows and the ignition is okay, then its likely the carb which is a pain. If you don't have one, fit a fuel filter.

bigjimmer · « **Reply #7 on:** April 06, 2006, 12:32:13 AM »

This morning i spoke to my dad, who owned one of these a long time ago, and he reminded me of the sometimes dickie points. I checked them by turning the engine by hand with the cap off and they seemed fine. I then put the cap on and tried to start it (don't know why i thought just looking at them would make a difference), and as if by magic it fired up!! I have no idea why. I can only assume that perhaps the dizzy cap was loose, unless someone can suggest some other reason?

But for now she works. Thanks to all of you who offered advice it was very much appreciated, and who knows maybe you'll all be able to convince me not to scrap it the next time it gets on my nerves. Thanks again!

Chris Lakin · « **Reply #8 on:** April 06, 2006, 07:53:31 AM »

i would replace the dizzy cap, i believe sometimes they get very fine cracks. They are cheap to replace, and i think this would cure it for good, its always worth keeping one spare in the car too!

well done m8, nice to see shes back on the road!

We are at wiltshire tomorow saturday and sunday, for our first own official rally, if you fancy coming along see details below in link, would be good if you can make it. Otherwise plenty of other events to meet you at.

http://www.fiat126.co.uk/forum/viewtopic.php?t=813

regards

Chris

bigjimmer · « **Reply #9 on:** April 06, 2006, 02:21:59 PM »

Thanks for the invite, but unfortunately i have to work this weekend. But definately another time. Have a good time!!