Alignment specs

Tiny
PAOLO FONTANILLA
  • MEMBER
  • 2018 HONDA CITY
  • 1.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 7,100 MILES
I would like to know the preferred specs of alignment for the car listed above please. Thank you.
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Friday, January 3rd, 2020 AT 11:02 PM

9 Replies

Tiny
KASEKENNY1
  • EXPERT
Here are the specs for a Civic, same year and engine. We don't have spec on the City but it is the same platform as a Civic so the numbers are the same. Clearly you may need to adjust a small amount to compensate for road conditions.
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Saturday, January 4th, 2020 AT 6:23 PM
Tiny
PAOLO FONTANILLA
  • MEMBER
Apparently here are my current setup when I go to the service center and aligned to this spec. Kindly see the picture.

May I ask what would be the problem? Still steering slight on the right side even though the road is straight and even.

I changed my rim from 15 to 17"
Tire Pressure
Front: 32/32
Rear: 30/30
Honda City 2018.

Thank you again with your help.
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Saturday, January 4th, 2020 AT 10:42 PM
Tiny
KASEKENNY1
  • EXPERT
Which side of the vehicle is the steering wheel on? I am assuming you are not in the USA, so it is on the right side of the vehicle? If this is the case then they are not adjusting the alignment to your concern. They are just putting them in the center and letting it go. This is very typical of people performing alignments. If the complaint is a slight right drift then you need to set the numbers to counter act that and cause it to go slightly left which will cause your vehicle to go straight down the road. I would always do this by increasing the caster split so that the side I wanted the vehicle to go towards (left in this case) has the least positive caster. That means the caster needs to be lower on the left side. Caster doesn't effect tire wear or any other performance unless you are taking it out of the specified range. Yours is actually high on both sides so its okay to come down a little.

I would suggest setting the caster split to between.5 and.75 (lower on the left) to start and see how the vehicle drives. This means the 5.30 that I circled needs to come down to around 4.90. Clearly if they just set this side at 4.90 and the right side comes down slightly as well then it won't have the same effect that is why you adjust based on the split or difference between the two sides.

If all this is accurate, I bet the vehicle will actually go left a bit which means they come back and cut the split in half and it should go straight down the road. Meaning if after they drop the left side so that they are a half degree off from each other and it goes left now, they need to bring the left side back up so that the split is now.25 side to side.

Does this make sense?
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Sunday, January 5th, 2020 AT 5:44 PM
Tiny
PAOLO FONTANILLA
  • MEMBER
Thank you so much Kenny.
I'll give update once the caster on the left were adjusted and let me test drive after it was set to that spec.

Your feedback would be greatly appreciated.
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Sunday, January 5th, 2020 AT 8:38 PM
Tiny
PAOLO FONTANILLA
  • MEMBER
Hi Kenny.

May I ask also does my Total Toe is not aligned on the rear.

Does it affect also the slight steering on the side?
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Monday, January 6th, 2020 AT 6:08 PM
Tiny
KASEKENNY1
  • EXPERT
That is a good question. Actually your toe angles on the rear would push the rear of the vehicle to the right which would cause the front to go left. These numbers are not that far off so the effect is minimal but in theory the toe being positive means the front of the tire is closer to the frame then the rear of the tire. So the left is pointed further in then the right which would cause it to go left. Again, it is not far enough out to actually have an effect on the performance.
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Monday, January 6th, 2020 AT 7:05 PM
Tiny
PAOLO FONTANILLA
  • MEMBER
Thank you for your answer I have learned many things from you. Apologies If I do have many questions. I don't have knowledge with regards to this because I'm not a technician.

But your answers would help me in the future.

When it comes to torsion beam. Do you recommend to align also my rear since it is a.10 difference from spec? I think it is not adjustable if the shop/service doesn't have the right kit I think.

For now I'll return to the service and re align the caster.

Thanks again.
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Monday, January 6th, 2020 AT 10:11 PM
Tiny
PAOLO FONTANILLA
  • MEMBER
Or should I ignore the rear alignment for the meantime?
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Monday, January 6th, 2020 AT 10:18 PM
Tiny
KASEKENNY1
  • EXPERT
I would never ignore it but the angles are not out enough to cause me to worry. They should not be effecting the performance or tire wear and when it comes alignments, that all that matters. I would adjust the caster and see how it drives.

Thanks for the kind words. I am glad we are able to help because that is what we are here for, which is share knowledge. Please come back if you have other questions.

https://www.2carpros.com/questions/new
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Tuesday, January 7th, 2020 AT 6:15 PM

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