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Old 05-16-2011, 02:12 PM   #1
slash2man OP
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336 cam made in china

Some mention made in a unrelated thread about how the 336 cams made in china were crap and had been recalled by BMW so how can I tell if a cam I purchased about 3years ago was made there?thanks arch
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Old 05-16-2011, 03:30 PM   #2
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There is so much BS floating around about 336's. I hope this rumor is just more of it.
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Old 05-16-2011, 03:54 PM   #3
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I found the problem with the 336 cam about 16 weeks ago, I DID post the problem within one of s/s cam debates but I think he missed it. THEY ARE MADE IN CHINA AND THEY ARE ALL SCRAP. THE LOBES ON THE RIGHT HAND CYLINDER HAVE BEEN MISGROUND AND WRECK THE FOLLOWERS. THEY MADE HUNDREDS AND IT GOES BACK ABOUT 2 YEARS. AT THE MOMENT BMW HAVE THERE HEAD IN THE SAND, AND ARE HOPEING THEY ARE OUT OF GARANTEE BEFORE THE PROBLEM IS BAD ENOUGH TO BE NOTICED.
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Old 05-16-2011, 04:08 PM   #4
supershaft
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I remember your post. I am still hoping that it is not so. A story like that needs a verifiable source. Who is it? We all know that a cam has never been mis-ground in Germany but . . . . On the other hand, BMW has been farming out airhead parts manufacture to some crap suppliers lately.
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Old 05-16-2011, 06:02 PM   #5
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John would be a verifiable source in my book.
Wost case scenario be would be an identifyable source with a current international profile and a reputation as an engine builder and parts manufacturer.

I hope the 336 china scrap story is and urban myth but I'd be listening to what John has to say

"THEY ARE MADE IN CHINA AND THEY ARE ALL SCRAP. THE LOBES ON THE RIGHT HAND CYLINDER HAVE BEEN MISGROUND AND WRECK THE FOLLOWERS"

At face value he has identified the problem on more than a single instance. Sure I'd like more info but I'm not going to ignore this advice.
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Old 05-16-2011, 06:19 PM   #6
mcma111
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So perhaps this explains why the 336 cam I put in my BMW R100gs shit the bed and ate the rockers on the right side.
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Old 05-16-2011, 06:26 PM   #7
supershaft
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Don't get me wrong. I am listening but a bad batch of cams doesn't mean they were made in China. I thought he said he had a good source on the origin of manufacture? If it's true, it's a shame. I would find out who made them originally and try to get cams through them since BMW has (had?) about the best cams in the business IMO.

I have got NOTHING good to say about my experiences with Chinese bearings and whatnot. Junk right out of the box!
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Old 05-17-2011, 12:04 PM   #8
Rob Farmer
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[QUOTE=Rucksta;15927867]John would be a verifiable source in my book.[quote]

Who's John ?
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