Super Duty John Posted September 29, 2015 Share Posted September 29, 2015 I have zero clutch brake on the 2004 CV713 I just bought, it was a State of PA Turnpike truck and was maintained but it appears the clutch has never been adjusted, ever! Now the adjustment wheel thing is frozen solid and missing teeth! Do I have to drop the trans to get at it and change the clutch ?The truck had 98,000 miles on it and is fairly tight for a plow truck, very little sign of rust and it looks great. Engine checks out fine except for a possible fuel line leak causing a hard start (that I can't find...) but shifting into 1 or R after getting out is brutal! I've been turning it off and starting in gear to save the gears! Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/ Share on other sites More sharing options...
Challenger Posted September 29, 2015 Share Posted September 29, 2015 You can replace the 5/8" adjuster, but if the clutch ring has broken teeth, the clutch will need replaced. If you replace the 5/8 adjuster and the clutch is still frozen, you'll have to replace the clutch. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-305530 Share on other sites More sharing options...
theakerstwo Posted September 29, 2015 Share Posted September 29, 2015 Do you know to adjust the clutch the clutch needs to be pushed down? 2 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-305554 Share on other sites More sharing options...
chief doug Posted October 1, 2015 Share Posted October 1, 2015 adjusting the free play won't get you clutch brake adjustment. you need to establish a clutch brake then adjust the free play 1 Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-305709 Share on other sites More sharing options...
Super Duty John Posted October 1, 2015 Author Share Posted October 1, 2015 You can replace the 5/8" adjuster, but if the clutch ring has broken teeth, the clutch will need replaced. If you replace the 5/8 adjuster and the clutch is still frozen, you'll have to replace the clutch. This is where we are now, we're just going to do both as the clutch is only about 25% at this point. Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-305829 Share on other sites More sharing options...
Super Duty John Posted October 1, 2015 Author Share Posted October 1, 2015 Do you know to adjust the clutch the clutch needs to be pushed down?Yes, we did that. Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-305830 Share on other sites More sharing options...
Super Duty John Posted October 1, 2015 Author Share Posted October 1, 2015 adjusting the free play won't get you clutch brake adjustment. you need to establish a clutch brake then adjust the free playThe whole issue is the clutch brake, the free play is Okay.We were able to adjust the clutch brake to just about to touch, but still nothing. The clutch brake has about [less than] 10% so I'm going to do the whole job. Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-305831 Share on other sites More sharing options...
theakerstwo Posted October 2, 2015 Share Posted October 2, 2015 First of all is to adj the brake with the free play adjument.You need the brake set first and then adjust the pressure plate to were the free play is about 1 1/2" and if the linkage has not been messed with the clutch sould come up with 1/2" clearance between the throw out brg and the clutch brake disc.If the clutch pedal had had the stop adjusted under the dash then you may have to adjust the pressure plate to fit the free play.But remember after the clutch brake is set the adjusting of the pressure plate will not change the clutch brake setting. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-305875 Share on other sites More sharing options...
Maxville Truck Posted October 2, 2015 Share Posted October 2, 2015 frozen adjusting ring on a clutch can be freed up using an air hammer........ rattle the cast clutch housing while turning on the adjuster _safety glasses and breathing mask would be suggested...have done it many times .. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-305884 Share on other sites More sharing options...
theakerstwo Posted October 2, 2015 Share Posted October 2, 2015 And then install a dust cover that so many do put back on.If you leave that cover off it not only lets dirt in the wear the pressure plate but also ever time the engine cools off some cool air is drawn in and so much moisture with it then it will form rust. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-305891 Share on other sites More sharing options...
Super Duty John Posted October 4, 2015 Author Share Posted October 4, 2015 I'm going to try all the advice given, thanks guys Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-306111 Share on other sites More sharing options...
turckster Posted October 7, 2015 Share Posted October 7, 2015 On clutches with frozen adjuster rings I soak the ring best I can with wd-40. Spray that stuff into every open hole I can while barring the engine over. I'll start the engine and run it for a short time while pressing the clutch pedal up/down. Usually that will break them loose. If not, I'll try an air hammer to try to move the ring. If none of that will loosen the ring then a new clutch is the only remedy.There are a ton of answers on how to adjust a clutch. The way I was taught was by a Spicer rep. The most critical setting on a clutch adjustment is the gap between the throw out bearing and clutch brake. A 1/2" is preferred butno more than 9/16". That is the adjustment you make with the adjuster ring. Next critical adjustment is the clutch brake (external linkage adjustment), when the clutch brake makes contact with the throw out bearing there should be approximately 1/2" clearance (aprox. finger thick) between the clutch pedal and the pedal stop. If both of these dimensions are correct then the free travel should be almost spot on. That is taking into account that everything is in good shape. Make sure before making a clutch adjustment that there is some pedal free travel. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-306518 Share on other sites More sharing options...
Super Duty John Posted October 8, 2015 Author Share Posted October 8, 2015 On clutches with frozen adjuster rings I soak the ring best I can with wd-40. Spray that stuff into every open hole I can while barring the engine over. I'll start the engine and run it for a short time while pressing the clutch pedal up/down. Usually that will break them loose. If not, I'll try an air hammer to try to move the ring. If none of that will loosen the ring then a new clutch is the only remedy.There are a ton of answers on how to adjust a clutch. The way I was taught was by a Spicer rep. The most critical setting on a clutch adjustment is the gap between the throw out bearing and clutch brake. A 1/2" is preferred butno more than 9/16". That is the adjustment you make with the adjuster ring. Next critical adjustment is the clutch brake (external linkage adjustment), when the clutch brake makes contact with the throw out bearing there should be approximately 1/2" clearance (aprox. finger thick) between the clutch pedal and the pedal stop. If both of these dimensions are correct then the free travel should be almost spot on. That is taking into account that everything is in good shape. Make sure before making a clutch adjustment that there is some pedal free travel.Thank you, will do. Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-306621 Share on other sites More sharing options...
afrdiesel Posted October 9, 2015 Share Posted October 9, 2015 make sure that the clutch brake is not worn down also, end play is critical for the life of the clutch, but the clutch brake is help for the syncronizers. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-306699 Share on other sites More sharing options...
felicello122 Posted October 10, 2015 Share Posted October 10, 2015 If the clutch brake is too worn to work, you can air chisel it out and install a two piece type to buy you some time in till you do the clutch job, I had to do this to a fairly new kw that got torn up bye some steering wheel holder, work nice with the slip on brake 2 Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-306890 Share on other sites More sharing options...
Super Duty John Posted October 13, 2015 Author Share Posted October 13, 2015 make sure that the clutch brake is not worn down also, end play is critical for the life of the clutch, but the clutch brake is help for the syncronizers.We ended up putting in a new clutch brake and clutch, I haven't received the bill yet but he said it was just under $2K and he did other work like: new rear brakes and removed the fuel heater next to the saddle tank. Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-307381 Share on other sites More sharing options...
Super Duty John Posted October 13, 2015 Author Share Posted October 13, 2015 I had to get used to free play and a clutch again today 1 Quote Link to comment https://www.bigmacktrucks.com/topic/41989-cant-adjust-clutch-brake-on-my-ai-350-with-an-8ll-trans-any-pointers/#findComment-307382 Share on other sites More sharing options...
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