Everyone likes valvetrain pics and what is this crosshatch?

[WobblyElvis]

Changing the valve cover gasket, so I thought I would take some pics. 2011 Hyundai Elantra Toruing 2.0 litre, 172,000 miles. The cam lobes have some odd [new to me] crosshatch pattern on them. Both sides of the lobes. OCI 7,500 to 5,000 miles with store brand 5W30 synthetic. Not many short trips.

 

[Vercingetorix]

Those are the Mobil 1 noise inducing grooves. Nothing to see, move along.

 

[tnt_motorsports]

Looks like the marks left behind from when the cam was ground IMO. Nothing to worry about.

Just my $0.02

 

[ka9mnx]

Maybe to hold oil onto the cam?

 

[Cujet]

Nothing like an RA 50 surface finish on cam lobes.

 

[spasm3]

Does not look like wear patterns, I'd say its factory polish pattern. Little wear!!

 

[Oliveoil2]

Just machining marks from the factory. Nothing to worry about. Looks good. Keep up your routine.

 

[ecotourist]

Perfect.

 

[michaelluscher]

Looks perfect
Those look like normal machining marks, nothing to worry about

I believe this is a 2.0 Beta II (MPI)
Seems this is back when Hyundai knew how to make an engine that lasts

 

[DirectRejection]

Changing the valve cover gasket, so I thought I would take some pics. 2011 Hyundai Elantra Toruing 2.0 litre, 172,000 miles. The cam lobes have some odd [new to me] crosshatch pattern on them. Both sides of the lobes. OCI 7,500 to 5,000 miles with store brand 5W30 synthetic. Not many short trips.

Cool photos !

I had a 2012 Elantra Touring, for my job. 64.5 cubic feet of cargo area. This is the old Kia Sephia engine...very durable. I put 300k miles on mine.

Keep your Hyundai forever, friend. It looks sweet under the valve cover.

 

[Skippy722]

Nothing like an RA 50 surface finish on cam lobes.

The machinist in me is triggered…. They’re not even deburred!!!!!

 

[WobblyElvis]

Bought this car 5 years ago on the cheap side. Looked like it had been abused. I repaired a few minor things like a ball joint and hood latch. Put tires on it. Time goes by and I was going to dump it until I looked at the price of a good used car. I'm putting about $2k into it and hope to get another couple of years out of it. One problem is I think the clutch is original [works fine] and I don't want to do that. Once I finish the repairs I'm doing, if I don't like it, I can sell it and get my money back.

As for the cams, I don't know what's going on but you can't argue with success. Engine runs fine and I don't see any sign of it slowing down. I've never seen anything like that on a cam lobe. All of them have those marks.

 

[Skippy722]

Bought this car 5 years ago on the cheap side. Looked like it had been abused. I repaired a few minor things like a ball joint and hood latch. Put tires on it. Time goes by and I was going to dump it until I looked at the price of a good used car. I'm putting about $2k into it and hope to get another couple of years out of it. One problem is I think the clutch is original [works fine] and I don't want to do that. Once I finish the repairs I'm doing, if I don't like it, I can sell it and get my money back.

As for the cams, I don't know what's going on but you can't argue with success. Engine runs fine and I don't see any sign of it slowing down. I've never seen anything like that on a cam lobe. All of them have those marks.

I’ve seen somewhat similar looking marks come off surface grinders if you don’t get the speeds and feeds set properly, kind of a chatter like phenomenon.

 

[DirectRejection]

Oh it's a MT. Here I was worried about SP III ATF.
You probably want to use some highest quality gear oil, due to reputation.

It would not be a bad idea to change the timing belt and associated hardware religiously on the 100s. At my 200k service, my mechanic showed me some markings on the old Idler Pulley that indicated it was going to fail pretty soon.

This vehicle would last someone on a hand down far more than two years.

Best of luck !

 

[snowshew]

Is this the same non-turbo that they used in the Elantra in 2009? Does the valve train rattle at all?

 

[WobblyElvis]

I would not say it rattles but it's not the quietest engine I've seen. The valves are supposed to be adjusted every? Never done as far as I know and I'm not likely to undertake that job. The cams drive directly onto the top of the valves via shims/buckets. Runs fine, I'm not worried about the valve train. It's just unusual looking.

 

[snowshew]

My 2009 has 50k miles and sounds like rocks in a tin can. I am tempted to try the job. I think a special tool is required but not a lot of talent.

 

[Vermess]

It would not be a bad idea to change the timing belt and associated hardware religiously on the 100s.