Club126UK

Fiat 126 Chat => Fiat 126 Mechanical Problem Solving => Topic started by: laners99 on March 13, 2015, 07:15:24 PM

Title: 126p air cooled wont start after oil change
Post by: laners99 on March 13, 2015, 07:15:24 PM

hello, I have tried looking for an answer and someone had a similar problem to me but I haven't been able to resolve this.
I changed the oil using 15w40 mineral oil, but in the process I had to replace the oil filter and also get a new timing chain housing.  After putting it all back together the car now wont start.  I am using a fully charged battery but I can only hear the starter motor but the engine shows no signs of coming to life.  I have put in new spark plugs but really don't know where else to turn.
    Does anyone have any suggestions on what I should try as I've run out of ideas of what to do.

Thanks!,

Title: Re: 126p air cooled wont start after oil change
Post by: Gadge on March 13, 2015, 07:46:10 PM

Have you checked that the wiring is ok on the distributor? Sound like an electrical problem so maybe you have dislodged something when you removed the timing cover

Title: Re: 126p air cooled wont start after oil change
Post by: Mics126 on March 15, 2015, 02:05:20 PM

did you only change the housing or did you touch the timing chain as well. if not as said before it's probaby something electrical (points/condenser ect).

Title: Re: 126p air cooled wont start after oil change
Post by: laners99 on March 15, 2015, 10:24:08 PM

Thanks for the help so far, ive had a look today and the problem is definitely that it doesn't spark.  I will have a look at the distributer etc, but haven't actually touched these.  Is it possible that the engine earth cable could be the issue,  I have connected it back to the body as if was before I took if off but it's the only electrical thing I've messed with (except for putting in new spark plugs).

Title: Re: 126p air cooled wont start after oil change
Post by: laners99 on March 15, 2015, 11:58:22 PM

Also didn't touch the chain, just literally the cover.

Title: Re: 126p air cooled wont start after oil change
Post by: 1973/126 on March 16, 2015, 08:24:20 AM

 Maybe try the old plugs again see if you have a spark on them. Are your leads the right way round?

Title: Re: 126p air cooled wont start after oil change
Post by: laners99 on March 16, 2015, 01:00:20 PM

Actually I hadnt thought of that, ill try that tonight.  The new plugs could be defective

Title: Re: 126p air cooled wont start after oil change
Post by: laners99 on March 17, 2015, 10:55:19 PM

Bit of an update! I think I've found the problem!! The crankshaft Pulley on my 1999 polish engine was damaged so I replaced it with one I bought of the Internet.  I have since found out that on the later models the pulley is different to allow for the electric timing using a hall sensor.  I have attached a picture I found on google and drawn on it to demonstrate the difference (red circled bits aren't on the part I bought). Does anyone by chance know which models use this part or ideally anyone who has one/ breaking a car with this part?  Thanks everyone!

Title: Re: 126p air cooled wont start after oil change
Post by: Gadge on March 18, 2015, 07:19:55 AM

That will be the problem  :D if the replacement pulley doesn't have those tabs on then the sensor can't tell where TDC is so it won't spark

Title: Re: 126p air cooled wont start after oil change
Post by: 1973/126 on March 18, 2015, 11:58:07 AM

 See you should have started with telling us your one had no distributor ;)

 I guess your best bet would be one of the Polish members. See if Piotros can help you source one.
 I bet it`s also heavier than a standard pulley as the flywheels are a fair bit heavier on the elx compared to the earlier ac models.

Title: Re: 126p air cooled wont start after oil change
Post by: laners99 on March 18, 2015, 12:02:52 PM

To be honest I didnt know it didnt have a distributor until just recently. 

Title: Re: 126p air cooled wont start after oil change
Post by: Piotross on March 18, 2015, 04:24:51 PM

There is three types od pulley with electric ignition. Give me serial number of this pulley. I have in stock one or two pulley's but have to check it.

Title: Re: 126p air cooled wont start after oil change
Post by: laners99 on March 18, 2015, 06:03:05 PM

Message sent 12/C 46577369

Title: Re: 126p air cooled wont start after oil change
Post by: Piotross on March 18, 2015, 07:19:11 PM

do you have blue Nanoplex - electric ignition ?

Title: Re: 126p air cooled wont start after oil change
Post by: laners99 on March 18, 2015, 07:33:54 PM

Yeah

Title: Re: 126p air cooled wont start after oil change
Post by: Piotross on March 18, 2015, 08:20:03 PM

OK, I found my last piece from my stock :)

(http://iv.pl/images/25567553938769318342_thumb.jpg) (http://iv.pl/viewer.php?file=25567553938769318342.jpg)

Title: Re: 126p air cooled wont start after oil change
Post by: laners99 on March 18, 2015, 08:37:44 PM

Life saver, pm me with a price when you can. Thanks

Title: Re: 126p air cooled wont start after oil change
Post by: laners99 on April 02, 2015, 12:19:11 PM

Just a qick update.  It was the pulley.  After installing the new one it now runs!! Thanks Piotross