Technical New head gasket, now it wont run

[satgav]

hey guys first time posting and I'm stuck

Recently brought a 2002 Punto for my first car. I knew the head gasket had to be changed so I did just that, after it was all back together I started her up and she ran fine.... for 20 minutes, then she died. Had just brought a new battery because the old one was flat. so tried to start it again 3 hours later because I thought I may have flooded it, but still nothing and now when i turn the ignition on the fuse box makes a clicking noise which is loud and continuous. And she still wont start. Turns over fine
Can anyone help? Thanks

 

[fingers99]

Check for spark and fuel past the injectors (petrol wet plugs).

If neither, TDC sensor.

 

[Ziggy122]

Timing slipped?

20mins since it wasn't tight it ran
Then jumped and now misses?

Ziggy

 

[satgav]

will try and get some time to look at the spark plugs and the timing belt. What the the TDC sensor look like?

 

[satgav]

ahh okay the crankshaft sensor? what could be wrong with that?

 

[s and b]

i assume you took head off rather than lifted it up to slide a new gasket in
therefore check all electrical connections from ecu to crank sensor to coils etc
obviously somethings worked loose
calm down keep clear headed
look tomorrow
doubt timings jumped unless idler wheel very slack and it jumped when injun turned off
anyway you would hear it back firing

 

[satgav]

Yeah I took the inlet and exhaust manifolds off, then cleaned off the head and block to see if there was any damage

 

[fingers99]

ahh okay the crankshaft sensor? what could be wrong with that?

It's one of the more fragile (and most important) sensors. If it's not working, the ECU thinks the engine isn't turning over, so cuts spark and doesn't fire the injectors. No spark and no fuel mean the engine doesn't run.

 

[satgav]

how would I check that it working properly?

 

[fingers99]

There are no really foolproof tests of the sensor itself -- as I say, if no spark (remove spark plug and lay on cylinder head, look for spark) and the plugs don't stink of unburnt petrol after cranking, that's what it'll be. It's at about 3 o clock to the alternator pulley on the crankshaft.