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Post by krux303 on Nov 23, 2019 9:24:49 GMT -5
I'd like to make this a "sticky" and need your help.It's time that I start freeing up weight and getting rid of the A/C system. I need your help to locate the right size belt and pulleys to bypass the AC system. I'm currently using a Zxtuner UDP. I hear the Dorman bypass pulley is junk. I would be taking the "blue belt" route. Here are the standard belt size with UDP w/AC: Mac Udp/Zxtuner Udp- Part #835K6 Esslinger Udp- Part #835K6 Zxtuner Ultra Udp - Part #820K6 Here is an old picture I found from Teamzx2: Please share any tips you have.
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ford74
Trainee ZX2ner
Posts: 132
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AC Bypass
Nov 24, 2019 18:13:21 GMT -5
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Post by ford74 on Nov 24, 2019 18:13:21 GMT -5
When i deleted my ac this diagram didnt work for me i tried 3 different belts even one that barely fit on with the tensioner fully loose and when i tried to get on the highway it always smoked the belt. I ended up changing the smooth idler on the tensioner to a grooved one and ran the belt almost the normal waybut when i went around the crank i took the belt to the water pump but that car still has a stock crank pulley. Im getting ready to build an engine with an underdrive pully (hopefully this week)i can take a pic and let you know what size belt i use if it would help
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Post by krux303 on Nov 24, 2019 18:58:33 GMT -5
That would be great!
I hear the bypass pulley (Dorman) is cheap and should only be used if absolutely needed. Plus it takes up space and weight, but if i need to go down this route, I am open to it.
I appreciate your insight.
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Post by TheEvilZX2 on Nov 25, 2019 17:14:30 GMT -5
Ive only ever ran the "green" routing, no PS or AC. I did swap the smooth and ribber idlers and ran with a powder pulley. Always had problems with the crank pulley slipping when wet, but ran like that for many many years. went through belts sooner due to the slippage.
Since going turbo im running the same setup but with the factory crank pulley, no issues lol.
I would try and measure first (with tensioner cranked at least half way down) then go buy 3 or 4 belts around the size measured. return the ones you wont use, maybe swap for a spare of the one you did use.
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Post by krux303 on Nov 25, 2019 17:47:14 GMT -5
Ive only ever ran the "green" routing, no PS or AC. I did swap the smooth and ribber idlers and ran with a powder pulley. Always had problems with the crank pulley slipping when wet, but ran like that for many many years. went through belts sooner due to the slippage. Since going turbo im running the same setup but with the factory crank pulley, no issues lol. I would try and measure first (with tensioner cranked at least half way down) then go buy 3 or 4 belts around the size measured. return the ones you wont use, maybe swap for a spare of the one you did use. Good to know. At that point, I'd be more open just putting the A/C bypass in if there is a chance the belt will slip or cause wear. The last thing I want to go to a car show with it slipping or making noise and look like a pos .
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ford74
Trainee ZX2ner
Posts: 132
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AC Bypass
Nov 27, 2019 18:01:57 GMT -5
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Post by ford74 on Nov 27, 2019 18:01:57 GMT -5
The way i ran my belt it doesn't slip weather flat foot or not if your not in a big rush Im soposto get my block back from the machine shop friday,if i do im gonna try and get it built and back in the car before the end of the weekend i will post a pic how i ran mine and belt size
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Post by krux303 on Nov 28, 2019 8:46:18 GMT -5
That would be great to see how you route your belt.
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ford74
Trainee ZX2ner
Posts: 132
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AC Bypass
Dec 2, 2019 6:14:25 GMT -5
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Post by ford74 on Dec 2, 2019 6:14:25 GMT -5
Zx2 imgur.com/a/LrB0tXR Change the smooth idler on the tensioner to a grooved one and for stock pullys its p#5060730 belt. For underdrive crank pully a p#5060705 belt
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Post by krux303 on Dec 2, 2019 17:45:46 GMT -5
Zx2 imgur.com/a/LrB0tXR Change the smooth idler on the tensioner to a grooved one and for stock pullys its p#5060730 belt. For underdrive crank pully a p#5060705 belt Thanks! Do you think it would sqeak at all with this setup? What under drive pulley are you referring too? I have a zxtuner which I believe is close to a ford racing diameter.
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ford74
Trainee ZX2ner
Posts: 132
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AC Bypass
Dec 2, 2019 22:17:55 GMT -5
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Post by ford74 on Dec 2, 2019 22:17:55 GMT -5
Im currently using this on a stock engine/pullys and no problems squeaking or slipping,the pic i took is on the engine im building so cant say %100 but i wouldnt expect it to its close to the factory belt routing. The underdrive pully i have is from massive motorsports i got the kit with the over size water pump pully and underdrive crank ,dont really know any measurments but that belt size will get you really close if not correct size,that belt number i posted was with a factory water pump pully
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Post by krux303 on Dec 3, 2019 7:01:59 GMT -5
Im currently using this on a stock engine/pullys and no problems squeaking or slipping,the pic i took is on the engine im building so cant say %100 but i wouldnt expect it to its close to the factory belt routing. The underdrive pully i have is from massive motorsports i got the kit with the over size water pump pully and underdrive crank ,dont really know any measurments but that belt size will get you really close if not correct size,that belt number i posted was with a factory water pump pully Good to know. It's a much cleaner look!
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Post by TheEvilZX2 on Dec 3, 2019 16:33:14 GMT -5
saw your first post and stickied this thread, and the fuel system thread too as there is some good info in there.
contemplated moving them both to knowledge, but lets leave them here for now. not enough other threads! lol
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Post by krux303 on Dec 3, 2019 19:19:21 GMT -5
saw your first post and stickied this thread, and the fuel system thread too as there is some good info in there. contemplated moving them both to knowledge, but lets leave them here for now. not enough other threads! lol Works for me. I'm just looking to grow our knowledge base with more threads. We need each other to grow .
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ford74
Trainee ZX2ner
Posts: 132
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AC Bypass
Dec 4, 2019 10:49:04 GMT -5
via mobile
Post by ford74 on Dec 4, 2019 10:49:04 GMT -5
Zx2 imgur.com/gallery/HlDtrIU A/c and powersteering delete just made a little bracket and mounted an idler to the powersteering pump bracket.
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Post by krux303 on Dec 4, 2019 17:41:46 GMT -5
Zx2 imgur.com/gallery/HlDtrIU A/c and powersteering delete just made a little bracket and mounted an idler to the powersteering pump bracket. Looks good!
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Post by TheEvilZX2 on Dec 8, 2019 16:06:20 GMT -5
Been cleaning up around the shop today, found some old belts, here's a pic. Ran these with the "green" routing from the pic above with a powder pulley, swapped ribbed idler for smooth, swapped tensioner smooth pulley for ribbed, and deleted factory smooth idler pulley. This pic is of the turbo car in same configuration but with factory crank pulley
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Post by christopherward152 on Jan 11, 2020 9:26:52 GMT -5
The pictures are of good quality thanks.
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Post by krux303 on Apr 18, 2020 14:31:35 GMT -5
I stumbled upon an old image from Teamzx2 with the belt sizes. What's the easiest way to find a 60" belt? My automotive places suck around here and would be lost if I asked for a 60" belt. Since I'm getting power steering, I will need to swap pulleys. Can I reuse the rib and idler pulley or do I need a new one in a different size
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Post by TheEvilZX2 on Apr 18, 2020 14:38:44 GMT -5
the 5060 in the part number is the ribs of the belt, the 470 475 or 485 is the belt length in inches.
the 6pk is the same thing number of ribs, then 1195 1205 1230 is the length of the belt in metric...mm or cm idk lol
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Post by krux303 on Apr 18, 2020 14:49:08 GMT -5
5060600 would be the correct belt size then. How about the pulley's, could they be reused?
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Post by TheEvilZX2 on Apr 18, 2020 17:06:39 GMT -5
With the belt off id spin everything and make sure the bearings are still smooth. As long as there's no damage to the pulley and the bearing is good id reuse them
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Post by krux303 on May 9, 2020 14:50:51 GMT -5
Ok, I must admit I did bypass the A/C with a dorman pulley and works well.
Dorman # 34182 Bolts may have to be slighly shorten or new bolts purchased. Pulley shim/spacer must be used to align pulley correctly.
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