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AYA 2 435 cc engine fails
http://www.international2cvfriends.com/forum/viewtopic.php?f=7&t=5958		 Page 1 of 3
Author:  Geert [ February 14th, 2017, 5:36 pm ]
Post subject:  AYA 2 435 cc engine fails
For my 1974 2CV AZU I have two spare-engines .
One of them we resored and it works well.
The other-one seemed to work well, outside of the car .
As we built it in the car to make sure that it was working as it should, it seemed to be that it only could manage 50 km /hour, no more.
As we had this other engine working well, we decided to let for what it was.
It is now two years ago, that we did this.
Now spring is coming, I thought of this engine again and I would like to have it running well.
What could cause this problem? I had the same petrol-pump, the same carburettor etc. which I use in the car for the original engine and this is running very well.
Author:  subarupete [ February 14th, 2017, 5:44 pm ]
Post subject:  Re: AYA 2 435 cc engine fails
Camshaft position/timing?
Author:  Geert [ February 14th, 2017, 6:13 pm ]
Post subject:  Re: AYA 2 435 cc engine fails
subarupete wrote:
Camshaft position/timing?


Can i check this without taking the engine apart ?
Author:  AZS [ February 15th, 2017, 6:42 pm ]
Post subject:  Re: AYA 2 435 cc engine fails
yes
Author:  subarupete [ February 15th, 2017, 6:54 pm ]
Post subject:  Re: AYA 2 435 cc engine fails
Share the solution?
Author:  Geert [ February 15th, 2017, 6:59 pm ]
Post subject:  Re: AYA 2 435 cc engine fails
subarupete wrote:
Share the solution?

Ofcourse .
It will take some time though, we still have this 2CVAZ to work on, the engine is for sparetime ( leisure time ) ;)
Author:  lpgo [ February 15th, 2017, 7:26 pm ]
Post subject:  Re: AYA 2 435 cc engine fails
also ignition timing. compression of pistons
Author:  lpgo [ February 15th, 2017, 7:35 pm ]
Post subject:  Re: AYA 2 435 cc engine fails
I would start with checking the advance curve with astrobe and see if it goes to about at least 30 degrees of advance.. If not that is your lack of power. If you dont have a strobe check at least if the advance mechanisem works well. If all ok check valve clearance and then compression.. if also ok. check valve timing..
Author:  lpgo [ February 15th, 2017, 7:38 pm ]
Post subject:  Re: AYA 2 435 cc engine fails
also worthchecking is the free flow of air in thw inletmanifold and exhaust manifold...
Author:  Geert [ February 15th, 2017, 7:48 pm ]
Post subject:  Re: AYA 2 435 cc engine fails
I thought the advance mechanisme might be the cause before, but have not checked .
I will start with the items Geo suggested and go from there .
Cheers
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