Gear drive cams vs chain?

Discussion in 'Harley Davidson Extreme Modification' started by maine-e-axe, May 31, 2009.

  1. maine-e-axe

    maine-e-axe Junior Member

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    Anyone running gear driven cams, how do you like'm? any problems? more power? any noise? who makes em?Way to go or not? Thanks for any help:newsmile090:
     
  2. kemo

    kemo R.I.P

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    If they are for your 89 FL does it not already have the gear drives.
     
  3. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    Forget all that stuff below. Wasn't thinkin'!! EVO!

    You have a gear driven system.

    CRANKCASE - GEAR SIDE - 1989 Harley Davidson FLHTC-U




    This info is for guys with TC and spring loaded tensioners (i.e., pre-2007):

    Wrestled with this issue myself. Here is the saga:

    Cam chain tensioners - running on borrowed time! - Harley Davidson Community

    Conversion Cams: Roller Chain Drive Up-grade - Harley Davidson Community

    TQ's Engine Build - Harley Davidson Community

    TQ
     
  4. maine-e-axe

    maine-e-axe Junior Member

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    It's for a buddy, he has a 06 S/G with a 113 S/E and he lost a inner cam bearing and was looking for something more dependable, only has 17000 miles on it. ya your probably right a BIG can of worms. thanks
     
  5. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    OK, then the links I included in my post above do apply.

    With that large an engine, runout is a key consideration. If your buddy had the crank done (balanced, trued, crank pin welded, trued), then the gear drive option may be safe. As indicated in the link, I do like the gear drive best, but runout was the worry for me.

    TQ
     
  6. threesteps

    threesteps Junior Member

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    I've got gear drives in my Wide Glide. Seem to work fine. They are noisy though. If the kit for the chain drive upgrade had been available when my tensioners had problems I would have used it. I'm not going to replace my gear driven but I would recommend the upgrade to the chain drives.
     
  7. 00BUCKSHOT

    00BUCKSHOT Junior Member

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    threesteps how many miles did you have on you wg when the tensoners went south?
     
  8. threesteps

    threesteps Junior Member

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    I had 16,000 miles on the bike. One of the tensioners was at the point of failure. The other was well worn. Wish I had taken some pics of the wear.
     
  9. dolt

    dolt Senior Member Contributor

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    Running gear drives on both my bikes; a 95" '05 FXSTD and an 107" '02 FLHT. I like them; no problems; they don't increase performance, it takes horsepower to run them just like the chains; not noisy if set up properly; Andrews makes them. The new hydra chain conversion was not available when mine were setup but had it been, I would have gone that route if for no other reason, the new high volume oil pump.

    It takes time and attention to detail to set up gear drives properly to insure that they are not noisy. Properly setup gear drives won't make as much noise as the old Morse chain setup; they are noisy.
     
  10. HDFXST7

    HDFXST7 New Member

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    I would go with gear drive; i spoke to a s&s rep at daytona this year and he explained the series of steps to make your gear drive cams quite; the run out is the main thing and all the parts that have to be changed out. It can get very expensive.....