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JUN cams Vs. Stock rocker arms=total destruction.

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Old Nov 30, 2004 | 06:05 AM
  #1  
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Default JUN cams Vs. Stock rocker arms=total destruction.

I got the car from my frind, first diagnosis break timing belt. HMMM.......?!? It's not break, all tooth are cuted from belt!!!!!!!!

So, her we go.
Cam profile:






Rocker arms:




OBX stuff - don't try to use this think!!!!!




You can see the little white mark on valve. we find those marks on 9 valves.


The story. The Guy order from Japan Stage 1 Jun cams, springs and retainers for H22A5 lude. Instal everything 1.5 year agou. Have AEM stand alone. Put in program 9500 rew limit. Resault was 232 Hp. Nice!!!

So, he sell that car 1 year agou and new costumers have alot of problems now.

Resume:
1) Don't rew higher as it must be.
2) Don't use OBX.




Modified by Root79 at 5:26 PM 11/30/2004


Modified by Root79 at 5:28 PM 11/30/2004


Modified by Root79 at 5:30 PM 11/30/2004
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Old Nov 30, 2004 | 06:29 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Root79)

that sucks, sorry to see.
Another case of aftermarket cams destroying rockers ...
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Old Nov 30, 2004 | 06:33 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (mmuller)

Yeah! The good think that I have H22A2 head in stock. So, we can use the parts from it.

We think that this JUN cams are low quality product.



Modified by Root79 at 2:25 PM 12/12/2004
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Old Nov 30, 2004 | 09:40 AM
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Default

speak english much?
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Old Nov 30, 2004 | 11:10 AM
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Default Re: (Iceman05)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Iceman05 &raquo;</TD></TR><TR><TD CLASS="quote">speak english much?</TD></TR></TABLE>

go postwhore somewhere else you idiot.
do you see he's not from the states?
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Old Nov 30, 2004 | 12:10 PM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Root79)

If he spent all the money on Jun cams and so forth, why didn't he just get some Jun cam gears also? Or some reputable cam gears?
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Old Nov 30, 2004 | 01:53 PM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Blue-Civic-Hybrid)

yea obx

o well good luck with everything those pics made me frown
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Old Dec 1, 2004 | 07:39 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (jason bouchard)

It's the dilema you know. Some of good companies start to produce the own products in China or Tiwan. Of course those products become cheaper but quality gose down.

I heared the stories about that kind of problems. And allmoust every popular company name after some time become under discusion. Why it's hapend with my engine!

I don't know now what to do, because which companies cams to buy!
Jun, eating rocker arms at high rew, Crower cams breaking, OBX.....no comentary........, Skunk 2 they made them in Tiwan too. Toda, Mugen, Spoon......too expensive.
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Old Dec 1, 2004 | 08:26 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Root79)

seriously, finally people are starting to realize that if you want reliability you gonna have to stick to oem cams...
none of the ''normal'' cam companies come even close to oem quality standarts.
besides that the ramps of most aftermarket cams are not valvespring friendly and will wear out your springs fast.
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Old Dec 1, 2004 | 08:35 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (mmuller)

It's things like this that made me decide on CTR cams for my motor. Sure, others might make more power, but for how long... Now if only I had some money to actually GET those CTRs...
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Old Dec 1, 2004 | 08:53 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (drdisco69)

Today I was looking at 1992 H22A2 cam and one year old JUN cam.

OEM cam don't have any scrach or damege after 12 years of hard job. JUN cam have so much damege like it was maded from aluminium!
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Old Dec 1, 2004 | 08:54 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Root79)

And tooth on OBX cam gear are so sharp like knife have, OEM cam gears like yesterday made at factory.
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Old Dec 2, 2004 | 10:59 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Root79)

thats bull about the cam companies because jun cams are made from honda blanks the stage 3 cams are neway according to a few threads in the search the stage 1 and 2 are crap neway
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Old Dec 2, 2004 | 11:17 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (clint g)

what does this have to do with obx "don't use obx" because they are the same profile? um i seriously doubt it was the profile that did that, more likely the material. so far i have yet to read about any obx cam failures or complications due to them,although they are relatively new and have a bad rep for poor quality.maybe i missed somethin please explain
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Old Dec 3, 2004 | 09:05 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (civdx94)

I mean about OBX cam gears, fuel pressure regulator, header........tested in real life

Cam gears after 1 year of using start to wear out(see pictures up). And allmoust brand new timing belt tooths was melted.

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Old Dec 3, 2004 | 11:39 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Root79)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Root79 &raquo;</TD></TR><TR><TD CLASS="quote"> Put in program 9500 rew limit. </TD></TR></TABLE>

...the guys revving an H22 to 9500rpm??? damn that's scary.
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Old Dec 4, 2004 | 01:03 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (K@man)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K@man &raquo;</TD></TR><TR><TD CLASS="quote">

...the guys revving an H22 to 9500rpm??? damn that's scary.</TD></TR></TABLE>


Total crazy!!!!
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Old Dec 4, 2004 | 04:47 AM
  #18  
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (K@man)

Are you sure its not an oil problem? It looks to me you may not have had proper lubrication up top. Maybe run it low on oil? Use a really cheap or bad oil?
Ive been running Jun 3 cams in my B18C for almost 3 years now and never had a problem.
I regularly pull the head off and inspect everything about once a year.

I think you should drop the pan and pull off a rod cap and look at the rod bearings. If its all scuffed up,Id say it was oil starvation that caused the cam wear...
As far as OBX products,I think you get what you pay for so stay away from cheap parts.They wont last. You may be able to skimp on something like a short ram though if you must. Good luck!
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Old Dec 4, 2004 | 10:09 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (mmuller)

this is why im going OEM with everything. *shudders*
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Old Dec 4, 2004 | 05:31 PM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Root79)

aww man.. that's some crazy cam wear.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K@man &raquo;</TD></TR><TR><TD CLASS="quote">

...the guys revving an H22 to 9500rpm??? damn that's scary.</TD></TR></TABLE> that's just wrong.
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Old Dec 4, 2004 | 09:24 PM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Root79)

Looks like coil bind to me.. Did you bother to check for bind?
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Old Dec 5, 2004 | 03:45 AM
  #22  
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Tbone)

After so big mess with cams we decaide to check the crank bearings. We think that there will be problems too. Actualy there was no any problems. All bearing in wery good condition. Will change them anyway.

We are instaled in this year non original bearings on 5 cars like CRX and EG. Thare no problems with that. Are you Guy's instaling only original Honga crunk bearings?

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Old Dec 5, 2004 | 07:00 AM
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Default Re: JUN cams Vs. Stock rocker arms=total destruction. (Root79)

Did you check the instaled height of the valvesprings and retainers to make sure the soprings were installed at the desired installed height.. It look like your valve springs were comprssing all the way until you pinched them(bind). at whick point the cam isnt being allowed to rotate becuase the spring wont comp0ress anymore. I think before you blame the cam you should check this out.
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Old Dec 6, 2004 | 02:07 PM
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Default

thats what i was thikning ..i just thought LMA's first...cause the primary lobse dont look all that bad not perfext though
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Old Dec 7, 2004 | 09:56 AM
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Default Re: (machine4321)

When the previos owner start to tune the engine. He order from Jun:
Stage 1 kit:
Camshaft
Spring
Retainers

Yes the springs was wery strong, I think to strong. Because the valves edges are very beated.

We will instal back OEM springs.
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