In a Clutch 'problem'
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New User
Joined: Mar 2005
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From: gettysburg pa
In a Clutch 'problem'
Happy Thanksgiving to all. I have used this site from time to time for refererance and have had great success. I have an 89 2x4 150 with 300-6 and a 5 speed the mazda trans. Earlier this week I had to put a clutch in. 158k while replacing clutch decided to replace the whole works. had the flywheel turned at a pro shop and replaced the pressure plate, disc, piolet bearing, through out bearing, and slave cylinder. Job went well until I went to bleed the slave cylinder. I have bleed this about 10 times and still not disengaging properly IE: always riding on the through out bearing. Here's how I bleed the slave cylinder. I put brake fluid in the master cylinder open bleed screw at slave and had fluid come out. Pumped clutch pedal 10 times cracked open bleed screw. did this a couple times then went to pumping clutch 50 times. I read this on a post I had found on a search. Still having problems. Any ideas? sorry for long post just want to get facts straight.
Elder User
Joined: May 2002
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From: Claremore, Ok 74017
You may of had situtation like I did. When I first changed my slave cylinder on my truck I could not get the master cylinder to pump back up. Changed it out and had no more problems. I would first have someone push the clutch in and look at it to make sure it is moving. I ended up bleeding my clutch like you do brakes, had my little brother pump it and I would crack it open after 3 pumps. Got all the air out and the clutch works good.
Junior User
Joined: Sep 2005
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Is your slave cylinder on the inside or the out side? If it is on the inside you pour brake fluid in until you have a good stream coming out of the bleeder screw. Close bleeder screw and pump the clutch 50 times and hold it down and open bleeder screw and a shot of air should come out.Refill master cylinder and it should be o.k.
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New User
Joined: Nov 2005
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When i bled the clutch in my brothers jeep (i know, i know), we would loosen the bleed valve, have sumone push clutch down, tighten the valve, have the person decompress the pedal, then do it like that until we had no more air bubbles and stuff. This was after replacing the slave, and his clutch is the best its been since he got it a year and a half ago.
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Thread Starter
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New User
Joined: Mar 2005
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From: gettysburg pa
thanks for the reply. I have replaced all components even the master cylinder. It is an internal slave cylinder. I have bleed the system by pouring fluid in and also by bleeding the system according to the information packet with the master cylinder. Also bleed system using proceedures in the haynes manual. I did have the flywheel trimmed wondering if this was to much or if there are shims to make up the difference. I had the flywheel resurfaced at a good machine shop the guy there has never steered me wrong before. I haven't had a chance to see him to ask about the shims. As a matter of fact haven't worked on truck last couple of days. I have been sick.
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New User
Joined: Mar 2005
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From: gettysburg pa
it did seem to go together pretty easy as a mater of fact it seemed to go together than anyother transmission install i have ever done. It seems like I have good petal and I had my dad look at the slave cylinder actuate and he said it was moving about a half of an inch. I was wondering if the disc was warped or the pressure plate diaphram was bent. I don't know what else could be giving trouble. Is a half an inch of travel enough. I know one thing for sure if this was my old truck the clutch linkage would already be adjusted and I'd be driving my truck.
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New User
Joined: Mar 2005
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From: gettysburg pa
thanks to all for your help and advice. I finally had a chance to get back to my truck and work on it. Here's what I found I took the pressure plate out of the truck and measured the thickness of the diaphram on the new one and the old one there was a quarter of an inch differance. huh wonder why I could not get it to disengage not enough travel. So I took this back to Autozone showed the kid at the counter he was clueless and gave me my money back. I then went to NAPA and spoke to the counter guy there he hooked me up with the correct clutch kit. Now my truck shifts like new. Lesson learned oil and shop supplies get at Autozone Real parts get at NAPA