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Big Block Talk! Everything about swapping a big block engine into your cart! |
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04-25-2010, 03:56 PM | #1 |
Not Yet Wild
Join Date: Feb 2007
Location: Tucson,Az
Posts: 66
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Big Blocks,Clutches and Belts
I have read everything I can find in the forum on determining proper (correct) belt size and have tried the measureing the drive clutch center (1190 6" Circ) and the driven clutch (36degree EZGO 30") added 2" and determined that a 38" belt will not fit a big block on a Stretch Cradle or for that matter on a CPP cradle as we (Son and I) have both the distance between centers on both are 12 5/8" (or REAL CLOSE to that) I presently have a 46 29/32" belt on mine (Stretch) and it works but is loose and will not allow the (clutches to work to their full capacity (Marked sheeves to determine travel) gets a bit pricey to buy belts in 1/2 "increments to try hoping that someone one somewhere out there has run these combinations and found that proper belt..
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04-25-2010, 04:28 PM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: Big Blocks,Clutches and Belts
SO if you have the motor installed? There is a way to measure the size of belt you need..... is that what you want?
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04-25-2010, 06:40 PM | #3 |
Not your usual outlaw
Join Date: Oct 2008
Location: Near Lake Geneva, WI
Posts: 20,054
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Re: Big Blocks,Clutches and Belts
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04-25-2010, 08:39 PM | #4 |
Not Yet Wild
Join Date: Feb 2007
Location: Tucson,Az
Posts: 66
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Re: Big Blocks,Clutches and Belts
Thats what I'm looking for.. I guess the best way is to cut a belt wrap it measure the missing space add that to the length of the cut belt..just didn't want to cut up a good belt even the one's we removed from the Robin motors..and not sure how much to add to allow for proper tension...pretty sure we are not the first to have these cradle/clutch combinations...Tom has tried to assist however he is not sure of the 1190 clutch on his cradle with the 24HP Honda and a 36 degree EZGO driven clutch.Had hoped that somone before us had found the right combination...
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04-25-2010, 08:51 PM | #5 |
Not your usual outlaw
Join Date: Oct 2008
Location: Near Lake Geneva, WI
Posts: 20,054
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Re: Big Blocks,Clutches and Belts
I have a Honda 20 with the stock ez-go clutch and 36 deg driven. Tom sent me a ez-go belt number 14153G1. I'm betting that that belt will work for you.
I also have a Dayco Max 1116 snow mobile belt that is close to the same overall lenth that will work. Good luck |
04-25-2010, 11:10 PM | #6 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: Big Blocks,Clutches and Belts
Here's what i found ..... you can use a cloth tape or a string and then mark and measure the string after wards
With both clutches on, wrap the tape around the center shaft of the engine (drive) clutch where the belt will ride when the cart is off. And in the rear run the tape around the driven clutch at the top or largest part ... this is actually outside of where the belt will ride ( it is the outside diameter of the drive) take this measurement add 2 inches and that;s your belt. worked for me on several different builds ~ |
04-26-2010, 10:27 AM | #7 |
Not Yet Wild
Join Date: Feb 2007
Location: Tucson,Az
Posts: 66
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Re: Big Blocks,Clutches and Belts
ALLRITE!!! guess getting smarter as you get older is not automaticFINALLY the light went on understand your formula now I have been measuring the circumference of the drive clutch (center) and the circumference of the driven clutch and adding the 2"gonna get out in the shop today and determine a belt size...appreciate the enlightment
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04-26-2010, 10:56 AM | #8 |
Not your usual outlaw
Join Date: Oct 2008
Location: Near Lake Geneva, WI
Posts: 20,054
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Re: Big Blocks,Clutches and Belts
William,
You should have an inch and a half to 2 inches of adjustment on the CPP cradle as well. I dont know about the Stretch. So, as long as you can get 1" of deflection on the drive belt, you should be good. |
04-26-2010, 09:11 PM | #9 |
Not Yet Wild
Join Date: Feb 2007
Location: Tucson,Az
Posts: 66
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Re: Big Blocks,Clutches and Belts
The Honda Motor does limit the adjustment avaiable with the cpp cradle due to a oil filter thats 3 1/4 " dia. and fouls the shifter rocker however we have identified a Fram thats 3/4" smaller dia and gives us back some engine/belt adjustment..the stretch DOES NOT allow for belt adjustment..thats going to be changed in the future..putting finishing touches on my cart this evening and hope to post some FINISHED photos tomorrow...
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04-26-2010, 09:18 PM | #10 | |
Not your usual outlaw
Join Date: Oct 2008
Location: Near Lake Geneva, WI
Posts: 20,054
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Re: Big Blocks,Clutches and Belts
Quote:
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