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Keep & Kill
Last Post: Yakcm2
Posted On: 14 Minutes Ago
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5 Days Ago
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Flat Track Racer
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Join Date: Sep 2019
Posts: 223 Sportster/Buell Model: XLH Sportster/Buell Year: 1969 Other Motorcycle Model: 111 Ironhorse Outlaw Other Motorcycle Year: 2004
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After Web Camshafts got a look at my SIFTON Titan cams they notified me that they did not have profile. They could do centers and create a profile which would be significantly more expensive. Cost prohibitive. I called Black Widow Cams and made arrangements with Web Camshafts to ship direct. Black Widow has done SIFTON Titan cams and will refurb entire set for under $600. The folks at Web Camshaft were very nice but they haven't done a significant number of HD cams.
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5 Days Ago
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Senior Chief Harley Engineer 1st Class
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Join Date: Dec 2014
Location: Phoenix
Posts: 1,390 Sportster/Buell Model: xlch Sportster/Buell Year: 1964 Sportster/Buell Model #2: XLCH IR EFI Sportster/Buell Year #2: 1971 Other Motorcycle Model: BMW K1200RS Other Motorcycle Year: 2001
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Thanks for the update. Please continue as you complete the process.
Was the $600 to do all 4 shafts?
Were all 4 in a "damaged" condition?
Was it their suggestion to do all 4 for a preventive measure?
Thanks in adv for the answers.
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5 Days Ago
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Flat Track Racer
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Join Date: Sep 2019
Posts: 223 Sportster/Buell Model: XLH Sportster/Buell Year: 1969 Other Motorcycle Model: 111 Ironhorse Outlaw Other Motorcycle Year: 2004
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Quote:
Originally Posted by Iron Mike
Thanks for the update. Please continue as you complete the process.
Was the $600 to do all 4 shafts?
Were all 4 in a "damaged" condition?
Was it their suggestion to do all 4 for a preventive measure?
Thanks in adv for the answers.
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$600 for all 4.
#4 had actual hardened layer chunk missing, #3 had pit. Web Camshafts inspection revealed all 4 lobes worn out.
Black Widow will weld and cut all 4 lobes. Rod used in welding is much harder than the original hardened layer. |
5 Days Ago
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Senior Master Custom Bike Builder
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Join Date: May 2010
Location: Pottstown PA.
Posts: 13,493 Sportster/Buell Model: xlch Sportster/Buell Year: 1960
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I remember DR DICK mentioning the minus - minus were known to knock the corners off.due to their profile I expect.i haven't looked at mine for a while.maybe I should.come to think of it I did have a peek when I swapped out the lifters and lifter blocks 2 yrs. ago.
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72 1000cc barrels and heads, s&s 41/2'' flywheels, sifton cams, s&s super B w/ zippers thunderjet w/yost powertube, andrews gears,and shafts, competition engineering kevlar wet or dry clutch, 72 oil pump, morris magneto w/auto advance and single fire module, cycle electric generator w/electronic regulator,73 cu.in.
Last edited by brucstoudt; 5 Days Ago at 00:20..
Reason: have a peek
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5 Days Ago
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Flat Track Racer
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Join Date: Sep 2019
Posts: 223 Sportster/Buell Model: XLH Sportster/Buell Year: 1969 Other Motorcycle Model: 111 Ironhorse Outlaw Other Motorcycle Year: 2004
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Quote:
Originally Posted by brucstoudt
I remember DR DICK mentioning the minus - minus were known to knock the corners off.due to their profile I expect.i haven't looked at mine for a while.maybe I should.come to think of it I did have a peek when I swapped out the lifters and lifter blocks 2 yrs. ago.
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Black Widow cams told me they have done several sets of Titan cams that were basically falling apart. I guess they all have a service limit. |
5 Days Ago
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Senior Master Custom Bike Builder
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Join Date: May 2010
Location: Pottstown PA.
Posts: 13,493 Sportster/Buell Model: xlch Sportster/Buell Year: 1960
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yeah it's a square looking lobe.
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5 Days Ago
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Senior Master Custom Bike Builder
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Join Date: Jun 2008
Location: Cornelius, OR
Posts: 8,862
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And how they are treated, over sprung is bad, under sprung is worse especially when reved up. Aluminum pushrods aren't going to help things either.
Those cam profiles are not made to last, power has a price.
Look at Lienweber profiles! I have seen stairs with more rounded corners!
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Ryder Rick "I know right from wrong, but sometimes, wrong feels right"
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5 Days Ago
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Senior Chief Harley Engineer 1st Class
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Join Date: Dec 2014
Location: Phoenix
Posts: 1,390 Sportster/Buell Model: xlch Sportster/Buell Year: 1964 Sportster/Buell Model #2: XLCH IR EFI Sportster/Buell Year #2: 1971 Other Motorcycle Model: BMW K1200RS Other Motorcycle Year: 2001
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Yeah, but stairs will make your legs hurt, Leinwebers stretch your arms out!
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5 Days Ago
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Senior Master Custom Bike Builder
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Join Date: May 2010
Location: Pottstown PA.
Posts: 13,493 Sportster/Buell Model: xlch Sportster/Buell Year: 1960
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funny you should mention leinewebers because I was thinking about them after my last post.why aren't they falling apart? with all the material ground off their base circle.
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5 Days Ago
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Senior Master Custom Bike Builder
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Join Date: Jun 2008
Location: Cornelius, OR
Posts: 8,862
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Obviously different material and heat treat process.
The Leinwebers purposely abuse the valve train so they were made better so the other parts will fail before the cams?
It's all give and take, push and shove, you make a gain here and something over there breaks. You could spend a lifetime chasing this stuff and never win.
When I put one together I just hope the stuff that breaks is easy and cheap to replace and doesn't break something else when it fails.
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