Question about 2001 Hyundai Accent
Hi i installed new piston rings and i also got my cylinder head rebuild. after complete installation of engine i started the car and it was running rough and jerking hard with no power when pressing the gas pedal. So i took the cylinder head off and found one of the valve not closing and all the valves was black. what is causing the car not to run smooth and leak gas in oil?? do you think it's the cylinder head since i have new rings installed.?? Please help
I think you have bent all the valves rebuilding the engine,possibly 14 valves out of the 16 valves are bent ,piston ring gaps are 4th per inch diameter of the piston so hope you got this right and the wear in the piston ring grooves wasnt excessive either ,but when fitting the head make sure all four pistons are level halfway down the bore before fitting the head then align the timings marks on the engine then turn the crank by hand to align the crank shaft mark and if its on the end by the flywheel then a spot of white paint on the front end so when your underneath you do not have to keep moving around checking the flywheel,All this damage you have done yourself although i will give you full marks for trying and commend you on this its just you need a bit more experiance modern day engines are all out of square with valve overlap unlike the old long stroke engines of yesteryear where you could start them with a starting handle .And the cars where made of metal and no IT university course on decrypting encoded software was needed .enough said rebuild the head and try again but full marks for trying
Posted on Nov 15, 2014
Testimonial: "Ok so the piston rings should be fine since they are new right? Just take the head back to the shop to be rebuild again.?"
Valve not closing is from a bent valve. Black soot is from over fuelling and incomplete combustion. Oily chamber is oil from the rings. It si possible that more than one valve is bent as it occurs from turning the engine over without letting of the rockers when adjusting the valve timing.
Posted on Nov 14, 2014
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Posted on Jan 02, 2017
SOURCE: 2001 sonota idle control valve
1. There is NO SCREEN.
2. Did the 'Check Engine' Light come ON? Whenever the 'CHECK ENGINE' light comes on, the ECU (Engine Control Unit) sets a Diagnostic Trouble Code (DTC). These codes identify the particular engine management system which caused the light to come on.
You'll need to use/find an OBDII (On-Board Diagnostic) Scanner to retrieve any code which have been stored in the ECU computer. Afterward, we might be able to help you DIAGNOSE the problem and perhaps eventually fix the problem.
Posted on Oct 04, 2009
It has to do with engine temperature. Was this the first run after the rebuild?
Posted on Oct 30, 2013
Testimonial: "yes this is the first run after the rebuild"
SOURCE: I could not start the Hyundai Tuscon -petrol 2005 model after replacement of crankshaft, piston bearing, main bearings, piston rings ,intake and exhaust valve and new head cylinder assembly. the car w
sounds like engine is out of time
Posted on Jan 18, 2014
SOURCE: 2001 Hyundai Accent GLS 1.5L
All those codes have on thing in common and that one thing is the electrical ground connection to the chassis or engine. You need to locate that connection and make sure that it is clean and tight.
Posted on Aug 18, 2014
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