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Are these cams toast?

  • Thread starter Thread starter MunkyMastr
  • Start date Start date
M

MunkyMastr

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As some of you might know, my 82 GS1100e motor exploded. I bought a donor rolling Chassi that had a motor in it. I pulled the valve cover and was distraught. I'm fairly certain these cams are toast, just want more of an expert opinion.
IMG_5059.jpg
 
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If you upload your photos to photobucket or flikr and then cut and past the link into your post the photo will show up in high resolution.

Rapid Ray is the guy to pass judgement on those cams. The rocker arm GS bikes are not kind to cams/rockers overall, but many times while they may not look great but they run fine regardless. To my eye those don't look too bad.
 
My opinion is I would not be afraid of them in my engine. Bad is chipped, pitted, blued, or otherwise scarred up in some way.
 
To me they don't look bad. You can measure the lobe heights and see if they are within service spec levels.
 
I would be concerned with the journals myself over the "wear in" looking marks on the lobes..but that just me.
 
I'd also have a good look at the follower surfaces. I've taken minor blemishes out of both cam and follower in the past using a small hand held oilstone.
 
I've seen the same on a number of 1100 16V motors. Seems typical and not of immediate concern. Maybe a top end oiling kit could help.
 
To be SURE, you will need to remove the cams & look at the rocker pad surfaces. If there are the same marks on the rocker pads, then it is bad. Call me at 714-356-7845 if you want help. That way you can text me pictures & I will be able to see them better & give you a better idea. Stock cams & rocker arms aren't too expensive to replace if you have to.
Ray.
 
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