Timing chains replacement 2010 3.8 - Page 2 - Hyundai Genesis Forum
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post #21 of 36 Old 05-10-2019
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This is the correct filter at least for the 2010 model. I have stated this before...the service dept told me that hyundai made a change in the oil filter in the early production bk1's....could be b.s.though
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Thanks everyone. I am pulling it back apart. Also putting a new oil pump in while I am there.


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Thanks everyone. I am pulling it back apart. Also putting a new oil pump in while I am there.


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Ugh, fingers crossed, bruv. I hope it turns out well!

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The need to replace the timing chain is news to me. After all, I thought the major advantage of a chain over a belt was longevity.

Questions:

Is this for both the 2.0 Turbo and 3.8?

Should the timing chain be replaced as preventative maintenance or just when it starts giving you trouble?

And if so, at what mileage?

Is the 3.8 an interference engine?
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Unsure if 3.8 is an interference motor.


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Yes, its interference engine.
Chain will last you over 150k normal use.
Most here dont use car normal, so replacement comes sooner.


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Timing chain replacement at 100k+ is very superior to timing belt replacement at 45-60k. I'm not sure what any are complaining about. I think the real grip is Hyundai sells you a 100k mile powertrain warranty, then tells you at 85k miles that the chain rattle is "normal", and that the timing system on your engine is somehow not part of the powertrain. LOL
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Is the problem chains, or chain tensioners?

I had a 2006 Nissan Altima with the 3.5 V6 and that engine was well known to eat timing chain tensioers before 100,000 miles causing a horrible buzzing. $4000 to have repaired because Nissan's warranty had run out at 60,000 miles!

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Is the problem chains, or chain tensioners?

I had a 2006 Nissan Altima with the 3.5 V6 and that engine was well known to eat timing chain tensioers before 100,000 miles causing a horrible buzzing. $4000 to have repaired because Nissan's warranty had run out at 60,000 miles!
do you mean tensions or chain guides?

Anyways, they do mean chains. Chains wear out and "stretch", throwing off timing.

Timing belts were designed to last 100,000 miles but they didn't take into account how changing climates would effect it.
IMO belts are easier to change and has less power loss moving a belt rather than a chain.
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When I did my 2L neither the guides or tensioner were worn.

The 2L has rubber pushing that funnels oil to a channel in the timing chain cover. This dumps into the pan in front of the block. It is for oil cooling I think. But the 2.4L Hyundai Sonata motor uses the same chain and the same oil channel in the timing cover as the BK1 2L and they too have early chain failure. They removed the bushing and it dumps the oil on top of the chain now. i did not see this in your photos though.

The problem appears to be a chain not up to the task as the 2L came out with a beefier one. I wonder if Hyundai chaged the 3.8L chain too?

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When I did my 2L neither the guides or tensioner were worn.

The 2L has rubber pushing that funnels oil to a channel in the timing chain cover. This dumps into the pan in front of the block. It is for oil cooling I think. But the 2.4L Hyundai Sonata motor uses the same chain and the same oil channel in the timing cover as the BK1 2L and they too have early chain failure. They removed the bushing and it dumps the oil on top of the chain now. i did not see this in your photos though.

The problem appears to be a chain not up to the task as the 2L came out with a beefier one. I wonder if Hyundai chaged the 3.8L chain too?
That and the thing on the bottom (if you ever cut one open) is to bypass the filter element if flow is too restricted.
They designed it that way, because dirty oil is better than no oil and risk spinning a bearing.
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I read on this forum somewhere that some of the 2010-11 ..3.8's have weak timing chains in them...and that there was an updated chain that Hyundai had introduced later on. My 2010 3.8 just hit 69,000 miles and started that death rattle at cold start up a few thousand miles back. It doesn't do it everytime..and parking on a flat surface or on a slight decline seems to dictate whether it rattles or not.
...Funny thing is ..I had my car parked in storage for 6 months and when I first started it up, it didn't make a noise. Infact, for 2 weeks it was quiet upon cold start up...then out of the blue it started doing it again. This baffles me..lol. plan on finally getting this annoying problem fixed once and for all and be done with it. Regardless, I dont drive my coupe very hard..and to have this happen at about the 65,000 mile mark , along with the 5th gear grind..is just plain unacceptable!!
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Even if it's just the tensioners, I'm not taking any chances. Might as well throw some timing chains in it as well while its apart.
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Basically I did the same thing because of the rattle. Also was getting a p0018 code out of time on drivers side. Couldn’t get it to pass emissions. Replaced all sensors. No fix. Replacing the chains seems to have fixed that problem.


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Quote:
Originally Posted by AKGC View Post
do you mean tensions or chain guides?

Anyways, they do mean chains. Chains wear out and "stretch", throwing off timing.

Timing belts were designed to last 100,000 miles but they didn't take into account how changing climates would effect it.
IMO belts are easier to change and has less power loss moving a belt rather than a chain.
On the Altima V6s it was definitely tensioners. Many had troubles with them, but I dodged a bullet and sold mine at 99,000 miles with no trouble.

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