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Cosworth YB timing belt pulley

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GeoffWade
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2010/01/24 19:17:45 (permalink)
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Cosworth YB timing belt pulley

I am after the timing belt pulley that goes on the crankshaft to suit a YB Cosworth
#1


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    Phil
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    RE: Cosworth YB timing belt pulley 2010/01/24 19:28:05 (permalink)
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    Hi Geoff,

    Alloy ones are easily sourced in the UK...I just ordered a stack of alloy pulley gear, Im sure the guy that I got my bits from does them for around 30 pounds. I'd run an original one though if you can source one.

    Did you end up getting a timing belt?

    Cheers,

    Phil.
    #2
    GeoffWade
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    RE: Cosworth YB timing belt pulley 2010/01/24 20:00:07 (permalink)
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    Pozformance have ordered one in for me(belt). as for the pulley I was hoping to pick up a second hand one from someone off the forum.
    Starting to get a bit costly with all the parts I have had to source. Still need rods and pistons yet.
    #3

    Phil
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    RE: Cosworth YB timing belt pulley 2010/01/24 20:26:14 (permalink)
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    Hi Geoff,

    If its N/A you could run a set of Spool Rods, there are alot of guys doing builds with these in the UK without issues. From memory they are about 100g lighter per rod than std rods and cost about the same as a set of cossie rods with new arp bolts Its all relevant to what you want to spend

    I got my last Dayco belt through Bursons for about $45.

    Cheers,

    Phil.
    #4
    GeoffWade
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    RE: Cosworth YB timing belt pulley 2010/01/24 20:52:18 (permalink)
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    Thanks Phil, I was actually thinking of the Spool Rods.
    Can you give me the Dayco part number on the belt.
    #5
    Mark
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    RE: Cosworth YB timing belt pulley 2010/01/24 20:54:15 (permalink)
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    quote:
    Originally posted by Phil

    Hi Geoff,

    If its N/A you could run a set of Spool Rods, there are alot of guys doing builds with these in the UK without issues. From memory they are about 100g lighter per rod than std rods and cost about the same as a set of cossie rods with new arp bolts Its all relevant to what you want to spend

    I got my last Dayco belt through Bursons for about $45.

    Cheers,

    Phil.

    ...The required rods are directly related to the RPM you intend to use as in N/A it is the acceleration/deacceleration of the the piston at high RPM that puts the most strain on te rod and not the force from the power produced...I spent $2600 for a long rod and very short piston combination to reduce the rod angle and piston mass for the high rpm application...Std cossie rods are good, as Phil suggested there are definitely other options. I use the Dayco belt too...
    #6

    Phil
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    RE: Cosworth YB timing belt pulley 2010/01/24 20:56:39 (permalink)
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    quote:
    Originally posted by GeoffWade

    Thanks Phil, I was actually thinking of the Spool Rods.
    Can you give me the Dayco part number on the belt.



    I dont have one here atm, I'll see what I can chase up...Mark may have one he can check in the interim
    #7
    Mark
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    RE: Cosworth YB timing belt pulley 2010/01/24 20:57:19 (permalink)
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    quote:
    Originally posted by Phil

    Hi Geoff,

    Alloy ones are easily sourced in the UK...I just ordered a stack of alloy pulley gear, Im sure the guy that I got my bits from does them for around 30 pounds. I'd run an original one though if you can source one.

    Did you end up getting a timing belt?

    Cheers,

    Phil.

    ...Any spare alloy pulleys?
    #8
    Mark
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    RE: Cosworth YB timing belt pulley 2010/01/24 21:06:58 (permalink)
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    quote:
    Originally posted by Phil

    quote:
    Originally posted by GeoffWade

    Thanks Phil, I was actually thinking of the Spool Rods.
    Can you give me the Dayco part number on the belt.



    I dont have one here atm, I'll see what I can chase up...Mark may have one he can check in the interim

    Dayco part No.
    The box sticker says
    94191
    144SP254H
    replaces (T808)
    #9
    GeoffWade
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    RE: Cosworth YB timing belt pulley 2010/01/24 21:08:56 (permalink)
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    Thanks Phil
    Mark... It is not going to be a race or big rev engine so I think the Spool rods would be fine. I have read in a number of places that you can use a standard crank pulley for the timing belt if you space it out a bit, but they are different pitch to the cossie cam pulleys. what are your thoughts on this Mark & Phil
    #10
    Mark
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    RE: Cosworth YB timing belt pulley 2010/01/24 21:20:18 (permalink)
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    quote:
    Originally posted by GeoffWade

    Thanks Phil
    Mark... It is not going to be a race or big rev engine so I think the Spool rods would be fine. I have read in a number of places that you can use a standard crank pulley for the timing belt if you space it out a bit, but they are different pitch to the cossie cam pulleys. what are your thoughts on this Mark & Phil

    ...belt profile is different and since it is so small leading to only a few teeth in contact, suggest a change to Cossie crank pulley...
    #11
    Phil
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    RE: Cosworth YB timing belt pulley 2010/01/24 21:32:38 (permalink)
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    quote:
    Originally posted by Mark

    Dayco part No.
    The box sticker says
    94191
    144SP254H
    replaces (T808)




    94191...thats the one...Bursons should be able to supply them from stock in Australia.
    #12
    GeoffWade
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    RE: Cosworth YB timing belt pulley 2010/01/24 21:45:03 (permalink)
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    Mark, I will certainly try to souce a genuine one. By the way, got ZOOM mag. your car looks great, fab artical, and I have put the centrefold of your car on my garage wall where it belongs. Congratulations on su7ch a lovely vehicle, its a credit to you


    Phil Thanks, I will try Bursons tomorrow
    #13
    Mark
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    RE: Cosworth YB timing belt pulley 2010/01/25 10:18:35 (permalink)
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    quote:
    Originally posted by GeoffWade

    Mark, I will certainly try to souce a genuine one. By the way, got ZOOM mag. your car looks great, fab artical, and I have put the centrefold of your car on my garage wall where it belongs. Congratulations on su7ch a lovely vehicle, its a credit to you


    Phil Thanks, I will try Bursons tomorrow

    CheeRS - they do make it look good in photos[;^)]
    #14
    ash
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    RE: Cosworth YB timing belt pulley 2010/01/26 20:43:55 (permalink)
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    Is that the current Zoom or an older one. I'll take a trip down to the newso if its current.
    #15
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