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Old 8th November 2006, 12:20   #31
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Default

Quote:
Originally Posted by Ford Rocam
1.6 Ltr Vtec Coupe.
Engine number = D16Y8

Your engine must be running OBD-2a (U.S Spec) your car must be civic EX Coupe with P2P ECU please confirm.
Im not sure of the ECU, but u are right about the rest
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Old 30th October 2012, 21:35   #32
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Default Re: Relation between Ignition retard/advance and AFR

*Bumping up an old thread*

We had the timing-belt of our Fiat Uno (Diesel) changed couple of weeks back. After changing the belt, I started the car and immediately saw the steering is vibrating heavily and the engine is noisier. To fix this, the service guy said that the 'timing was advanced'. I'm not a mechanically 'learnt' guy and what I understood from his explanation is that the fuel is injected a little bit earlier than usual. Anyways, the engine is much more smooth now and the sound is pleasing (I'm happy). The idling speed had gotten increased (because of advancing the timing, he said), but it was adjusted back to normal. My questions are:

What are the disadvantages of having the timing advanced? (Less mileage, I'm guessing?)

What are the advantages of it?

Mods: Could not find a more appropriate thread to post this.

Last edited by DudeWithaFiat : 30th October 2012 at 21:36.
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Old 31st October 2012, 16:06   #33
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Default Re: Relation between Ignition retard/advance and AFR

Quote:
Originally Posted by DudeWithaFiat View Post
What are the disadvantages of having the timing advanced? (Less mileage, I'm guessing?)

What are the advantages of it?
.
AFAIK, the disadvantages are:
  • Lesser low end torque
  • Slightly less FE
  • More emissions
  • Higher temperatures
The advantages are:
  • Engine gets smooth
  • Increased throttle response
  • Lower emissions.
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Old 1st November 2012, 20:50   #34
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Default Re: Relation between Ignition retard/advance and AFR

Quote:
Originally Posted by dhanushs View Post
AFAIK, the disadvantages are:
  • Lesser low end torque
  • Slightly less FE
  • More emissions
  • Higher temperatures
The advantages are:
  • Engine gets smooth
  • Increased throttle response
  • Lower emissions.
Thanks Dhanush. Yes, the engine is smooth now. A bit confused on the emission part since you have said both 'more' and 'lower' emissions. I googled it, but couldn't get a clear answer.
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Old 11th February 2013, 00:14   #35
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Default Esteem 07 : Query : Engine Part

Hii
Sorry to create a new thread, couldnt find a similar topic.

I recently visited a garage in gurgaon to get my filling valve changed for my cng esteem. In addition, he rotated a part in the engine bay by a few centimeters as marked in the image below :
The car is now almost 20-30% more torquey ! I can feel the power down at even 1100 RPM and can easily upshift at 2000 RPM ! It feels really light and peppy. Even the mileage has also improved to about 20 Km/Kg.

Can anyone please explain me what exactly has he done? I am surprised by the increase in performance !

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It took only a few seconds and 0 Rs to do the same ! Even a throttle body cleanup didnt result to such improvement a few months back !

Kindly share your input on what component it is and whats the process ?

Apologies for using the image from google search.

Last edited by sudeep11787 : 11th February 2013 at 00:16. Reason: image usage
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Old 11th February 2013, 00:44   #36
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Default Re: Esteem 07 : Query : Engine Part

He adjusted the timing of your car to what i think is the perfect setting thats it
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Old 11th February 2013, 01:02   #37
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Default Re: Esteem 07 : Query : Engine Part

It is to set advance and retard for firing with respect to the top dead center of the engine. It's actually done with assistance of a timing gun. From what you have mentioned it seems he has advanced the timing by a few degrees.
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