We just got a 1985 F350, we need to replace the clutch and not sure exactly how to go about it...we have the transmission down and the clutch kit just need to know where to go from there. Thanks to anyone...
The first thing to do is to have the flywheel re-surfaced because a warped flywheel will cause the clutch to chatter or shudder when you let up the clutch pedal, and also be certain that the pilot bearing is replaced, it can be difficult to remove the pilot bearing from the end of the crankshaft and you will most likely need to obtain a good pilot bearing puller to remove it.
Clean the bell-housing and the rear of the engine block while the flywheel is being re-surfaced, and be sure that all of the old clutch material and dust has been cleaned from the bell-housing and the rear of the engine block, and contamination from an old clutch disk will lead to early clutch failure.
After the flywheel has been installed and torqued down, then you will need to mount the clutch disk and the pressure-plate assembly together onto the flywheel, and be sure that the clutch disk is facing the right way (usually the spring hub will go towards the pressure-plate assembly), and then start to install the pressure-plate assembly bolts but only hand tighten them for now. After the bolts have been started then use the clutch disk alignment tool that should have come with the clutch kit to align the clutch disk with the pilot bearing, and when you have it aligned so that the alignment tool easily slips through the clutch disk and into the pilot bearing, then tighten down the bolts to the pressure-plate assembly one turn at a time in a criss-cross pattern until the pressure-plate assembly is flush with the flywheel and then you can torque down the pressure-plate assembly bolts. This is a critical step and the better aligned that you get the disk and pilot bearing, and the easier it is to remove and replace the alignment tool, the easier it will be to install the transmission, and the transmission input shaft should slip smoothly through the clutch disk and into the pilot bearing and not have any difficulties mounting up to the engine, and if the transmission hangs up when you are installing it and and the transmission input shaft does not go straight in through the clutch disk and into the pilot bearing, it can damage the clutch hub and the clutch will chatter or shudder when you let the clutch pedal up, and it will shorten the life of the clutch.
After the clutch has been aligned then install the throw-out/release bearing onto the transmission input shaft collar and the throw-out/release bearing fork, and use a lithium based grease on the pivot points of the throw-out/release bearing fork and where the fork contacts the throw-out/release bearing, and if it did not come greased, then lightly grease the inside of the throw-out/release bearing with a lithium based grease and do not over do it on the grease, you want just enough grease to keep the throw-out bearing and the input shaft collar lubricated but still have a smooth operation to it, and you do not want to damage the clutch from oil or grease contamination as this will cause the new clutch disk to slip.
The transmission can now be installed into the vehicle and be careful not to hang the transmission input shaft on the clutch disk or the clutch disk will be damaged. I hope that this information will help you to replace that clutch with a proper quality repair that you will get the most out of.
Jun 10, 2010 |
1985 Ford F350