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One Alto Way
Atmore, AL 36502
EMAIL:
sales@altousa.com
PHONE:
251.368.7777
FAX:
251.368.7774
Para Espaņol
305-892-7777
Para Espaņol Email
vendes@altousa.com
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I've just installed a new clutch kit and the gears grind while shifting. What you are experiencing is a partial release of the clutch system. As you depress the clutch pedal and push it to the floorboard the clutch disc is in slight contact with either the flywheel, or the pressure plate, or both. There are several causes of this condition. Here again, alignment of the engine and transmission can cause this problem. Check the engine and transmission mounts. A warped bell housing will create misalignment of the engine and transmission. Excessive free play adjustment can cause this condition. If the position of the clutch release bearing is too far away from the diaphragm of the cover when the clutch pedal is depressed, there is not sufficient travel to fully release the clutch disc. If the vehicle has a hydraulic release system, there could be air trapped in the hydraulic lines. Because the placement of some clutch master cylinders are mounted in a downward angle, it is very easy to have air bubbles trapped in the reservoirs. Ford has issued technical service bulletins on this subject. Bleeding hydraulic systems is becoming more difficult, and we are seeing more hydraulic systems on vehicles in each model year. The best technique to bleed the clutch hydraulic' that I've used is the new "Reverse Fluid Injector" systems. Almost all of the new clutch manufactures are offering these tools as part of the product line. If you are a professional installer it is a good investment. If you are putting a clutch in your own vehicle and do not have access to one of these RFI tools, here is a "Tech Tip" that may help you bleed your system. Depending on the position of the master cylinder on the vehicle, raise either the front of the vehicle or the rear of the vehicle. The purpose is to raise the slave cylinder higher than the master cylinder. When you bleed the system with all wheels on the ground you are attempting to force the air bubbles downward through the hydraulic lines and out of the slave cylinder. Air bubbles; naturally want to rise to the surface. You are working against nature to attempt to force air bubbles downward. By raising one end of the vehicle so the slave cylinder is higher than the master cylinder you are forcing air bubbles upward. Another potential cause of this condition is firewall flex. In some applications the mounting position of the master cylinder on the firewall has created a problem with the firewall flexing as the clutch pedal is depressed. Any flexing of the f irewall will reduce the amount of pressure applied to the master cylinder, reducing the travel of the release bearing. The only solution is reinforcement of the firewall area. |
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