308-Belt dressing on cam belts OK? | FerrariChat
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308-Belt dressing on cam belts OK?

Discussion in 'Technical Q&A' started by greg328, Nov 22, 2005.

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  1. greg328

    greg328 F1 Rookie

    Nov 17, 2003
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    Greg
    #1 greg328, Nov 22, 2005
    I sometimes need to spray my accessory belts to quiet them down, even though a warm-up also works. They are a bit hard when cold, kind of like a flat-spot.

    Just wondering if it's acceptable to also spray the cam belts to prevent hardening. Mine are new, just want to keep them supple. Any risk here, maybe to the cam gears, etc....?

    Greg
    '77 GTB
     
  2. 308GTS

    308GTS Formula 3

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    #2 308GTS, Nov 22, 2005
    I wouldn't recommend it. You don't want to chance it slipping in anyway, form or fashion.
     
  3. carguy

    carguy F1 Rookie

    Oct 30, 2002
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    Jeff
    #3 carguy, Nov 22, 2005
    No....cam belts have teeth and will (hopefully) not slip. So NEVER EVER spray this stuff on them.
     
  4. Joe G.

    Joe G. Formula 3
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    #4 Joe G., Nov 22, 2005
    dude

    you don't want to be doing that
     
  5. greg328

    greg328 F1 Rookie

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    #5 greg328, Nov 22, 2005
    I figured as much. I just thought it would be nice to keep them supple, but
    slippage would NOT be good, agreed!


    Thanks,
    Greg
     
  6. tomberlin

    tomberlin Formula Junior
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    tom berlin
    #6 tomberlin, Nov 22, 2005
    Either tension your belts or put new drive belts on your car. Needing belt dressing means something is wrong.
    Tom
     
  7. greg328

    greg328 F1 Rookie

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    #7 greg328, Nov 23, 2005
    They're tight and quiet, really don't need it--just curious..


    Greg
     
  8. BigTex

    BigTex Seven Time F1 World Champ
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    #8 BigTex, Nov 23, 2005
    Actually, the belt dressing you find here is for rubber type drive belts......our belts are a harder compound, more like plastic, so they will not absorb the compound......

    Any 'quieting' is the result of it acting on the pulley surfaces.

    Agree, that any treatment on the toothed timing belts is a bad idea.
    They actually COUNT on the friction of the belt and gear surface to perform properly......
     
  9. BigTex

    BigTex Seven Time F1 World Champ
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    #9 BigTex, Nov 23, 2005
    If you have one 'sqealing ' it is most likely worn and should be replaced...they can be worn and hardly visible to the eye, again based upon the hardness of the compound.....the running surface gets 'cupped' over time.
     
  10. Meister

    Meister F1 Veteran
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    #10 Meister, Nov 23, 2005
    I actually put some belt dressing on my cam belts at some point last summer (2004). As I was troubleshooting what turned out to be a squeaking alt/h2o belt.

    I sprayed some belt dressing on the flat side of the cam belt thinking it was slipping on the tennsioner bearing....

    I've been drving with those belts from 8/2004 (wisconsin = 20 times a year) and nothing has happened. Just lucky I guess.

    I didn't really plan to do it, it was just a side effect of something else I was doing. Would I recomend it, no.

    I had planned on chaning the belts and tennsioners over this winter anyway as I had also re-installed the old tennsioner bearings as I thought I had recieved some bad new ones (bearings).

    Talk about living on borrowed time..and I didn't win the $320M lottery. Guess I'm lucky in other ways.
     
  11. greg328

    greg328 F1 Rookie

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    #11 greg328, Nov 23, 2005
    One of my drive belts makes a bit of noise--like a repeated tic corresponding w/ rpms--only when cold. They warm up quickly and the noise goes away.
    The belts are recently fitted.

    Anybody else experience this?


    Greg
     
  12. f355spider

    f355spider F1 World Champ
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    #12 f355spider, Nov 23, 2005
    Normal, and posted about every three months. Do a search of the archives for explaination and further details.
     

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