Dayco / Isoran timing belt? | Page 3 | FerrariChat

Dayco / Isoran timing belt?

Discussion in 'Technical Q&A' started by Stearman22, Nov 10, 2008.

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  1. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,620
    The Brickyard
    Full Name:
    The Bad Guy
    Back from the dead.

    Well I guess I'll dig in too.

    Ferrari DOES NOT manufacture the belts. Period end of story.

    Just because there is a stamp with the letters f-e-r-r-a-r-i on the belt, while it is rolling out on the DAYCO factory floor, does not make it better. It only gives reason to the seller to mark the price WAAAAAAY up. That's it. Dayco makes the belt and the prints the lettering on it for Ferrari. The quality is dead nuts the same with, or without, the lettering.

    But hey, some people like to fool themselves into thinking that "if it's expensive it must be better". I'm not one of those people.


    P.S.

    Thanks Stearman22 for the info on the Dayco number system on the belt, and taking the time to talk to the manufacture and share it with us. That was informative and much appreciated.
     
  2. porphy

    porphy Formula 3
    Silver Subscribed

    Dec 9, 2009
    1,210
    LouisvilleKY/Switzld
    Full Name:
    Randall Gatz
    What about sources for the non-ferrari belts? Can one buy directly from Dayco?
     
  3. porphy

    porphy Formula 3
    Silver Subscribed

    Dec 9, 2009
    1,210
    LouisvilleKY/Switzld
    Full Name:
    Randall Gatz
    Does anyone have the DAyco part numbers for the 348/mondial T? They are impossible to read from the pics. Thanks.
     
  4. Declan1

    Declan1 Karting

    Mar 15, 2007
    57
    Stuart, Florida
    Full Name:
    Robert
    #54 Declan1, Nov 18, 2010
    Last edited by a moderator: Sep 7, 2017
  5. porphy

    porphy Formula 3
    Silver Subscribed

    Dec 9, 2009
    1,210
    LouisvilleKY/Switzld
    Full Name:
    Randall Gatz
    Thanks much!
     
  6. Steve King

    Steve King F1 Rookie

    Feb 15, 2001
    4,367
    NY
    Looks good , nice job. I've always had a question here for Ferrari but I guess it would be useless to ask so I'll ask the board. Why is it that on the 3X8 engines they don't mark the timing pulleys and the timing belts. I have an old 740 Volvo and every 50K miles I change the timing belt. The 3 pulleys are notched and the timing belt has white alignment lines molded into it. It seems simple enough and makes it easy to install. I know we all mark the pulleys and belts which accomplishes the same idea but I would think that this should have been a factory deal. Hey just askin here.
     
  7. Brian Harper

    Brian Harper F1 Rookie
    Owner Silver Subscribed

    Feb 17, 2006
    4,078
    San Jose area
    Full Name:
    Brian Harper
    The cam pulleys are adjustable so any mark on the pulleys could be moved to any location in the firing cycle. Marking these could do a lot more harm than good. Volvo doesn't see the need for adjustable pulleys, so they get to mark the pulley.
     
  8. MaterMech

    MaterMech Formula Junior

    Feb 26, 2007
    476
    Los Gatos CA
    Full Name:
    Mark Johnson
    #58 MaterMech, Nov 27, 2010
    Last edited: Nov 27, 2010
    It's a different mentality all together. Ferrari made it highly adjustable therefore defeating the purpose of timing marks like Volvo Toyota etc. I know what your saying though. T-belts on most other cars are gravy. Bottom line is it would be too simple :) As a matter of habit i still always mark the belts and pulleys and then line up the old belt with the new belt and transfer the marks. It has saved me more than once when the belts are lined up on top of each other and I go tooth by tooth around the both of them to discover that I received a belt that was an additional tooth longer. Honda in particular has the habit of making slightly different belts for there different sub models ie DX VX HX ....... Toss in the possibility of a parts person who does not care and you'll be doing things twice.
     

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