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Do these cams look alright?

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0l0dom0l0
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Joined: 21 Oct 2009
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PostPosted: 13:47 - 25 Feb 2015    Post subject: Do these cams look alright? Reply with quote
I'm finding it difficult to get hold of some 5SL R6 cams that are in good nick. Few on the bay but they all seem pretty abused, what are peoples thoughts on these?


https://www.ebay.co.uk/itm/YAMAHA-R6-5SL-CAMS-/321673444463?pt=UK_Motorcycle_Parts_13&hash=item4ae53b3c6f
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mentalboy
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Joined: 05 May 2012
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PostPosted: 14:27 - 25 Feb 2015    Post subject: Reply with quote
The cams themselves look OK but there is a fair amount of pitting on the bearing faces - may or may not be critical. Are these machines known for having oil issues on the top end?
If they are like rocking horse poo to find then it may be worth a punt but it may be a good idea to get them checked by an engineer to make sure that they are still true.

Edit: 30 quid is hardly going to break the bank if they are FUBAR, buying new however might!!!
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0l0dom0l0
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Joined: 21 Oct 2009
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PostPosted: 15:03 - 25 Feb 2015    Post subject: Reply with quote
mentalboy wrote:
The cams themselves look OK but there is a fair amount of pitting on the bearing faces - may or may not be critical. Are these machines known for having oil issues on the top end?
If they are like rocking horse poo to find then it may be worth a punt but it may be a good idea to get them checked by an engineer to make sure that they are still true.

Edit: 30 quid is hardly going to break the bank if they are FUBAR, buying new however might!!!


Not that I'm aware of with regards to issues in the top end.

There is a whole head and cams on ebay for £150. Apparently it's done 4000 Miles and this is what the lobes look like:

https://tws.dk-server.co.uk/item175958-10.jpg

Which looks like a bit of wear to me. The TL 1000R engine I just did the valve clearances on hasn't got a single mark on any of the cams they literally look like they're out the box and that's done 10k.
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CBT Passed: 30/08/2009, Theory Passed: 31/08/2010, Mod 1 Passed: 6/9/2010, Mod 2 Passed: 13/09/2010. Restriction ended 13/09/2012.

Bikes: 2007 Derbi GPR 50, 1998 Yamaha Fazer 600 (written off), 2002 Yamaha Fazer 600, 1994 CBR 600F, 2003 Triumph Daytona 600, Kawasaki ZX6R J1.....Current: 2006 Yamaha FZ6, 1998 Suzuki TL1000R and a Honda VFR 400 NC30.
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mentalboy
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PostPosted: 15:25 - 25 Feb 2015    Post subject: Reply with quote
0l0dom0l0 wrote:


There is a whole head and cams on ebay for £150. Apparently it's done 4000 Miles ....
... looks like a bit of wear to me. The TL 1000R engine I just did the valve clearances on hasn't got a single mark on any of the cams they literally look like they're out the box and that's done 10k.


I'd be more worried if the lobes weren't looking polished on their ends! You can't see the state of the bearing surfaces in that pic but it doesn't appear to have a shortage of oil on them
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MarJay
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Joined: 15 Sep 2003
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PostPosted: 16:42 - 25 Feb 2015    Post subject: Reply with quote
Mint unabused cams. Put on a concrete floor.

Nah, thanks.
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mentalboy
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Joined: 05 May 2012
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PostPosted: 17:04 - 25 Feb 2015    Post subject: Reply with quote
MarJay wrote:
Mint unabused cams. Put on a concrete floor.


....at least the floor has been painted and is reasonably clean - says a lot about a workshop.
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Fisty
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Joined: 11 Apr 2007
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PostPosted: 20:55 - 25 Feb 2015    Post subject: Reply with quote
YUNO FINISH TL?
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0l0dom0l0
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Joined: 21 Oct 2009
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PostPosted: 22:57 - 25 Feb 2015    Post subject: Reply with quote
Fisty wrote:
YUNO FINISH TL?


Getting the rear subframe and a couple of other bits powder coated Tomorrow. Exhaust is being blasted. Then gunna take a couple of days either side of a weekend off to put the rest of it back together. I want to be on it this summer!!

And Marjay, they look ok to you? Other than the fact they're on a concrete floor?
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CBT Passed: 30/08/2009, Theory Passed: 31/08/2010, Mod 1 Passed: 6/9/2010, Mod 2 Passed: 13/09/2010. Restriction ended 13/09/2012.

Bikes: 2007 Derbi GPR 50, 1998 Yamaha Fazer 600 (written off), 2002 Yamaha Fazer 600, 1994 CBR 600F, 2003 Triumph Daytona 600, Kawasaki ZX6R J1.....Current: 2006 Yamaha FZ6, 1998 Suzuki TL1000R and a Honda VFR 400 NC30.
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Old Thread Alert!

The last post was made 11 years, 127 days ago. Instead of replying here, would creating a new thread be more useful?
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