 fan belt problems |
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| jat914 |
 Dec 15 2019, 02:20 PM
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#1
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Newbie  Group: Members Posts: 25 Joined: 3-December 13 From: Arizona Member No.: 16,718 Region Association: None  |
I had to replace the fan belt on my race built 2065 motor. The replacement belt is made in China and at high rpms it kept flying off! Has anyone had this problem and is there a solution?
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Replies
| jcd914 |
Dec 17 2019, 04:27 PM
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#2
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
This was a fairly common issue for track use or auto-x drivers since quick RPM changes were common. Even with all the brackets and pulleys in good shape and properly aligned the high RPM could throw the belt just from normal stretch.
On track cars or Auto-x only cars we used to run a narrower belt that fit deeper in the pulley and was less likely to come off at high RPM. It was a domestic sized belt that I think was 7/16 wide or about 8mm but I am not sure. These did not have lifespan a belt should have for a street car but they stayed on track/auto-x cars. I still have an old one but I don't think it has numbers on it anymore. Jim |
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| jat914 |
Dec 19 2019, 02:50 PM
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#3
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Newbie Group: Members Posts: 25 Joined: 3-December 13 From: Arizona Member No.: 16,718 Region Association: None |
QUOTE(jcd914 @ Dec 17 2019, 03:27 PM)  This was a fairly common issue for track use or auto-x drivers since quick RPM changes were common. Even with all the brackets and pulleys in good shape and properly aligned the high RPM could throw the belt just from normal stretch. On track cars or Auto-x only cars we used to run a narrower belt that fit deeper in the pulley and was less likely to come off at high RPM. It was a domestic sized belt that I think was 7/16 wide or about 8mm but I am not sure. These did not have lifespan a belt should have for a street car but they stayed on track/auto-x cars. I still have an old one but I don't think it has numbers on it anymore. Jim I will try a thiner belt (8mm) since the alignment was fine before I started having this problem. Thanks for all of the input. |
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Posts in this topic
jat914 fan belt problems Dec 15 2019, 02:20 PM
rgalla9146 It is less likely a counry of origin issue and mor... Dec 15 2019, 07:13 PM
porschetub
It is less likely a counry of origin issue and mo... Dec 17 2019, 02:19 PM
cuddy_k
It is less likely a counry of origin issue and mo... Dec 18 2019, 10:18 PM brant Gates makes a belt with ribs on the exterior
Itâ€... Dec 17 2019, 03:03 PM sixnotfour the new continental/ ContiTech are made in .......... Dec 17 2019, 03:38 PM 914Sixer Make sure you are using the correct size belt. 9.... Dec 17 2019, 04:06 PM porschetub
Make sure you are using the correct size belt. 9... Dec 17 2019, 08:18 PM porschetub
This was a fairly common issue for track use or ... Dec 20 2019, 02:22 PM 914Sixer Belt Dec 18 2019, 06:59 AM rhodyguy The mount bracket for the alt. My car made a chirp... Dec 19 2019, 11:12 AM |
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