 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / Toyota / Toyota Trucks / August 2007Clutch Problem
I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic clutch. I have to push the peddle all the way down to get it to shift properly and when turned off and transmission in gear, the clutch will not hold the truck on any type of incline and even on flat surfaces I can move the truck if I lean on the hood. It seems like the clutch doesn't fully engage or disengage. I have replaced the fluid already. Any ideas what is going on? Thanks. Mike D. > I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic > clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 5 lines] > > Mike D. not an expert so if i have a dumb idea dont bite at me. Clutch cable, master cylinder, work out clutch, just an idea >> I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic >> clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 11 lines] > not an expert so if i have a dumb idea dont bite at me. Clutch cable, > master cylinder, work out clutch, just an idea It's a hydraulic clutch, there is no cable -- which is what makes it hydraulic by the way. When you are driving along at say, 25, in 3rd gear and give it the gas, does the truck speed up, or does the engine race with little or no change in speed? If the latter, and with the other symptoms you cite, I'm going with a badly worn out clutch. >I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic >clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 5 lines] > > Mike D. > When you are driving along at say, 25, in 3rd gear and give it the gas, > does the truck speed up, or does the engine race with little or no change > in speed? Nope. > If the latter, and with the other symptoms you cite, I'm going with a > badly worn out clutch. [quoted text clipped - 8 lines] >> >> Mike D. | I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic | clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 5 lines] | | Mike D. How many miles on the clutch? If you bled the air out of the system when you replaced the fluid, my vote would be for a worn out clutch disc, with the information you've given so far. With the engine off and in gear you should not be able to push the truck without turning the engine over. Another check we used years ago was to nudge up to a big tree, rev the engine up a little in 2nd gear and ease the clutch out. It should kill the engine immediately. If it doesn't, your clutch is wore out. A leaking main seal could cause a slipping clutch but it wouldn't cause you to have to push the pedal to the floor.  SignatureOldPhart > | I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic > | clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 15 lines] > gear you should not be able to push the truck without turning the engine > over. Good call! If the engine is spinning when you push the truck, you have a worn out motor that has very low compression. > > | I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic > > | clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 22 lines] > > - Show quoted text - I was mearly pointing out what few things i know about transmitions. sue me for trying to point out things that may be to obvious to some. >> > | I have an '85 Toyota pickup with a 4 speed manual tranny and >> > hydraulic [quoted text clipped - 31 lines] > I was mearly pointing out what few things i know about transmitions. > sue me for trying to point out things that may be to obvious to some. I get that. I was hoping to teach you that a hydraulic clutch, by definition, has no cable. >>> > | I have an '85 Toyota pickup with a 4 speed manual tranny and > >>> hydraulic [quoted text clipped - 35 lines] > I get that. I was hoping to teach you that a hydraulic clutch, by > definition, has no cable. And without being sarcastic, no less... :>)) SignatureTom - Vista, CA >> | I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic >> | clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 20 lines] > If the engine is spinning when you push the truck, you have a worn out > motor that has very low compression. Just tried pushing it and the motor spins. Hey, it only has 191,000 miles on it! Starts and runs good most of the time, but always starts. Looks like it is just a case of worn rings. I'll have to do a compression test tomorrow, raining today. | >> | I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic | >> | clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 25 lines] | like it is just a case of worn rings. I'll have to do a compression test | tomorrow, raining today. Now I am confused. Are you now saying that your clutch problem is due to worn rings? We used to push start cars all of the time when the battery wouldn't turn over the engine. Were we only able to do that because the engine had low compression? I think not. We mostly used 2nd gear to turn over the engine but I have done it in 1st and reverse when necessary. We wouldn't have been able to do it if the clutch was bad though. Another thought. It will take two people. Push the clutch pedal to the floor while someone is watching the slave cylinder. See if it will hold the pressure plate open or not. If it doesn't hold you have problems with the clutch master cylinder or slave cylinder. BTW, 191,000 miles is a lot for an original clutch. Any idea whether it has been replaced or not? SignatureOldPhart > | >> | I have an '85 Toyota pickup with a 4 speed manual tranny and > hydraulic [quoted text clipped - 42 lines] > Now I am confused. Are you now saying that your clutch problem is due to > worn rings? \ Yes, that's what he is saying. More accurately, his complaint is that the truck moves when parked. He thought the clutch was not holding, but it turns out the engine is not holding. You push start a with a bit of speed, you push the car to a mph or two, select the desired gear and dump the clutch to turn the motor over. The OP complains that his truck will roll down his driveway even if parked in gear. The compression on the motor is not sufficient to hold the truck where he parks it. | > | >> | I have an '85 Toyota pickup with a 4 speed manual tranny and | > hydraulic [quoted text clipped - 54 lines] | The compression on the motor is not sufficient to hold the truck where he | parks it. His original post: I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic clutch. I have to push the peddle all the way down to get it to shift properly and when turned off and transmission in gear, the clutch will not hold the truck on any type of incline and even on flat surfaces I can move the truck if I lean on the hood. It seems like the clutch doesn't fully engage or disengage. I have replaced the fluid already. Any ideas what is going on? Thanks. Mike D. Now! If the clutch is faulty and not engaged, the truck will roll down the hill. He did not say that the engine was turning over. Please read all of the posts and comment again. SignatureOldPhart <snip> You're right, but he said in another post that the motor turns when he leans on the truck. That leads us to think the compression is low. You gave us his original post, but somebody picked up on the LACK of complaint that the clutch is slipping while driving, but only "slips" when parked -- he diagnosed the movement of the truck as a slipping clutch, but he has since found out that the motor turns when the truck is moving. The clutch holds, the motor does not. | <snip> | [quoted text clipped - 6 lines] | he has since found out that the motor turns when the truck is moving. The | clutch holds, the motor does not. An engine with good compression will turn over when you push the truck or car. Otherwise you can not push start it. That is not a sign of low compression. SignatureOldPhart > An engine with good compression will turn over when you push the truck > or car. Otherwise you can not push start it. That is not a sign of low > compression. If you put the car in the driveway in 1st gear and ti rolls away, that is a sign of low compression. If you can physically pust a car by hand in 1st or 2nd, that is a sign of low compression. When you push a car in N, then jump in and dump the clutch, this is completely different than walking up to the front or back of a truck and shove it around the neighborhood in gear, then your engine is worn out. | > An engine with good compression will turn over when you push the truck | > or car. Otherwise you can not push start it. That is not a sign of low [quoted text clipped - 7 lines] | completely different than walking up to the front or back of a truck and | shove it around the neighborhood in gear, then your engine is worn out. I guess we have to agree to disagree on this. It may be a sign of low compression. But, I decided to convert my '57 Chevy 210 series hard top from the Powerglide transmission to a standard shift in the early 60's. The engine was a fresh rebuilt 283ci that had been bored out to 301ci and had new high compression pistons installed along with a 3/4 race cam and a 4 barrel carb. I did not have the clutch pedal and arm installed yet and decided to take it for a spin. We put it in gear, pushed the car to start it and away we went. The 4.11 rear end ratio may have helped. BTW, we installed a hydraulic clutch on it as it was easier since no welding was required. Used a '59 PU slave cylinder and another '57 brake master cylinder. SignatureOldPhart > | > An engine with good compression will turn over when you push the > truck [quoted text clipped - 25 lines] > welding was required. Used a '59 PU slave cylinder and another '57 brake > master cylinder. One should not be able to push a car by hand with the transmission in 1st or R, and arguably in 2nd. One _might_ be able to push a car in 3rd or higher down a hill with 2 or more people. If the car can be moved by itself or one person while in R or 1st, this is a sign of very low compression. If you pushed your car with another car, then I would expect it to start runninig easily. If you needed two or three friends to push the car in 3rd to get it going, this would be expected as well. Between the 4.11 gears and the newly built motor, I would not expect you could push the car by hand in any gear less than 3rd. The 4.10 gears and the transmission ration on 1st would act against your effort by requiring greater force to turn the motor. Less force would be needed in 3rd or 4th, but more speed would be needed to get the motor to run. > | > An engine with good compression will turn over when you push the > truck [quoted text clipped - 25 lines] > welding was required. Used a '59 PU slave cylinder and another '57 brake > master cylinder. You seem to totally miss the point. You seem to be implying that if the truck moves while parked in gear it will start. Am I correct or did I miss something? > I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic > clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 5 lines] > > Mike D. Your clutch is shot. Have it done by a shop. For that truck it should only run around $450. You can buy the clutch kit for around $118, but you need to get the truck in the air and be able to drop the tranny out to replace it. >> I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic >> clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 14 lines] > You can buy the clutch kit for around $118, but you need to get the > truck in the air and be able to drop the tranny out to replace it. Been there, done that many times over. No problemo. While I am at it I may want to just go ahead and replace the tranny as it needs a rebuild. The syncros are out, occasional grinding of gears. While I am at it, the axle seal and universals need replacing. But I also only paid $300 for this beater. >>> I have an '85 Toyota pickup with a 4 speed manual tranny and hydraulic >>> clutch. I have to push the peddle all the way down to get it to shift [quoted text clipped - 20 lines] > axle seal and universals need replacing. But I also only paid $300 for > this beater. Okay, I just checked with Autozone for rebuild kits for the transmission. There are appears to be about 4 different 4 speed transmissions. How do I find out what one I have? Usually by the VIN. there is also a stamp on the casing. > Okay, I just checked with Autozone for rebuild kits for the transmission. > There are appears to be about 4 different 4 speed transmissions. How do I > find out what one I have? > Usually by the VIN. there is also a stamp on the casing. Okay, where on the casing? >> Okay, I just checked with Autozone for rebuild kits for the transmission. >> There are appears to be about 4 different 4 speed transmissions. How do >> I find out what one I have? Engine Block, or sometime referred as the Cylinder Block, not to be confused with the Cylinder Head. >> Usually by the VIN. there is also a stamp on the casing. >> [quoted text clipped - 3 lines] >>> transmission. There are appears to be about 4 different 4 speed >>> transmissions. How do I find out what one I have? There is no TRANSMISSION data on the engine block. Any transmission data will to molded ot stamped into the trnamissioin itself, or on a plate that is bolted to the transmission. > Engine Block, or sometime referred as the Cylinder Block, not to be > confused with the Cylinder Head. [quoted text clipped - 6 lines] >>>> transmission. There are appears to be about 4 different 4 speed >>>> transmissions. How do I find out what one I have? |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.