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Effects of CNG on Engine Life

Effects of CNG on Engine Life

I would like to ask effects of CNG on engine life/wear in following scenario: A zero meter corolla GLi/Altis/Civic converted nicely with a good efi kit (or lambda/SIS). Those who have had got their brand new cars converted 3 yeras ago can provide feedback as they would be eperiencing any effects by now. The point is that if engine wears out prematurely then is it any real saving from CNG?
And if there is no bad effect then its a good news. BUT PLEASE NO ASSUMPTIONS, ONLY GROUND EXPERIENCE. REgards
Gari.pk User 4059 asked on 13 Jul 2010 12:59:47 pm
1 Answer
479 views |
Rayan - on 13 Jul 2010 13:00:04 pm
Hello!
well CNG have some drawbacks as well as some positive points....!
well Drawbacks are more like

CNG Burns Hotter.....so Valve Burning occurs so Engine Valves and Valves Seats are mostly Effected....!also needs oil which have ability of more heat resistance...!

CNG is in the form of gas and Dry in nature....so don't have any cooling or liquid effect like petrol....so Combustion Chamber do have dry effect creating some resistance....!

It produces 15% low power than that of petrol...!

well Advantages are like:

Low Running Cost....

Envoirment Friendly as it burns cleaner producing like 0% Harmful gases....!

As It burns cleaner so no Carbon and other deposits
inside engines....!

so the thing mostly effected are Valves and Valves Seats...! Chrome/Vanedium Valves and Valve Seats might work good on it...! and higher the compression ratios....perfectly the CNG burns..
Thanxxx
 

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