Author Topic: clutch problems (Read 5546 times)

91 super yoda · « **on:** Oct 16, 2005, 05:40:07 PM »

ive got a 91 on 33's with a fairly new clutch, bout 10,000 road miles and about 4 trips wheelin. ive never had the problem before but just recently the clutch will not grab when the tires are in a bind. i can pull up to a ledge hold the truck with teh clutch and give it gas to try and get up but the cluthc will not grab. i can have it runnin at about 1500 rpm and dump the cluth (foot off of the pedal) and the motor will drop about 400 rpm and sound like its lugging but the tires will not turn. i dont think im getting ebough pressure on the clutch, so do you think the slave cylinder is getting weak or does it just need to be adjusted. ive also got a 94 and its cluthc starts grabbing right off the floor but the 91 is almost to the top
your help would be much appreciated
thanks

79coyotefrg · « **Reply #1 on:** Oct 16, 2005, 06:30:30 PM »

you need a new clutch, the pressure plate you have is junk, marlins clutches are topnotch, i run a 1200 marlin clutch and in 4Hi i can spin the tires easily,

Willy Mammoth · « **Reply #2 on:** Oct 16, 2005, 06:41:28 PM »

Sounds like the disk is worn out or the pressure plate has lost it's tension. Was it a rebuilt clutch or a new one. I would replace it. And Glen is rite that Marlins clutches are the way to go. They are Jap parts like the original and they have the heavy duty setups too.

79coyotefrg · « **Reply #3 on:** Oct 16, 2005, 06:46:29 PM »

hey drive up here to arkansas and you can feel my clutch if you want

79coyotefrg · « **Reply #4 on:** Oct 16, 2005, 06:50:29 PM »

Quote from: 79Coyotefrg on Oct 16, 2005, 06:46:29 PM

hey drive up here to arkansas and you can feel my clutch if you want

did that sound dirty somehow

um dude if you want to drive up from texas and SIT IN my truck and press the clutch or drive it your welcome to,

did you sign in on the texas,arkansas,oklahoma newbie thread

91 super yoda · « **Reply #5 on:** Oct 16, 2005, 06:53:35 PM »

hey no thanks man, im not a clutchy feely kinda guy. i dotn see how its the cluthc itself, its a borg and warner which is a racing style clutch, ive got 2 friends with an 84 and an 85 and they both have the cheapo orieleys $64 setup and blows mine out of teh water. and yes it was a brand new setup, i rearely buy rebuilt stuff. i was thinkin it was teh slave cylinder or needs an adjustment, but i wouldnt be askin questions if i wasnt for sure

Willy Mammoth · « **Reply #6 on:** Oct 16, 2005, 06:54:52 PM »

Quote from: 79Coyotefrg on Oct 16, 2005, 06:46:29 PM

hey drive up here to arkansas and you can feel my clutch if you want

It should start grabing within the first couple inches from the floor. If it does not have any free play at the top of the pedel the disk has worn out causing the pressure plate to stand up higher and the pedel to be firm at the top.

79coyotefrg · « **Reply #7 on:** Oct 16, 2005, 06:56:05 PM »

well do you have a adjuster on your slave cylinder, between the slave and the clutch fork, can you make that shorter??

Willy Mammoth · « **Reply #8 on:** Oct 16, 2005, 06:58:50 PM »

Is there any free play at the slave cyl? Can you spin the rod in the slave. If not it may have too long of a rod causing the clutch to be partially disengaged. If the rod has some play it has to be the clutch.

79coyotefrg · « **Reply #9 on:** Oct 16, 2005, 06:59:50 PM »

Quote from: 91 super yoda on Oct 16, 2005, 06:53:35 PM

hey no thanks man, im not a clutchy feely kinda guy. i dotn see how its the cluthc itself, its a borg and warner which is a racing style clutch, ive got 2 friends with an 84 and an 85 and they both have the cheapo orieleys $64 setup and blows mine out of teh water. and yes it was a brand new setup, i rearely buy rebuilt stuff. i was thinkin it was teh slave cylinder or needs an adjustment, but i wouldnt be askin questions if i wasnt for sure

marlins clutches are much more powerful in the clamping load they apply, it makes the pedal aLOT more firm, stock toyota clutches are around 800 lbs clamping force, marlins are 1200 and 1600

91 super yoda · « **Reply #10 on:** Oct 16, 2005, 07:01:08 PM »

i just went and checked and and there is no adjustement but i can push the clave cylinder in with my hand quite easily, im thinkin that it doesnt have enough pressure against it to hold.

79coyotefrg · « **Reply #11 on:** Oct 16, 2005, 07:02:24 PM »

bad slave cylinder or air in the line

bleed your clutch

Willy Mammoth · « **Reply #12 on:** Oct 16, 2005, 07:04:20 PM »

The slave disengages the clutch, it has nothing to do with it grabbing unless it is stuck. If you could move the rod it is not the problem.

Willy Mammoth · « **Reply #13 on:** Oct 16, 2005, 07:06:01 PM »

A bad slave would cause the clutch to grab too close to the floor or not disengage at all.

91 super yoda · « **Reply #14 on:** Oct 16, 2005, 07:12:11 PM »

well damn that sucks, im in teh middle doin a sas, a clutch was not in the plans. even it the clutch was recently changed it can still be bad. it is only a year old and has less than 10k on it. and before i changed the clutch it would grab at teh same spot. is there a way i can rig that fork with a spring for now and change it later after teh swap

91 super yoda · « **Reply #15 on:** Oct 16, 2005, 07:17:24 PM »

if i would have known a little sooner i would have definetely got that axle from ya, i bought one from springfield, mass. and it is a pain in the but to get here. how far are you from Texarkana, cause we might have to go wheelin once all this crap is done?

Willy Mammoth · « **Reply #16 on:** Oct 16, 2005, 07:20:01 PM »

Have you been is any deep mud? I had some mud and grass get into the pressure plate one time and hold the forks from comming up all the way. That would make the clutch slip, but it is not likely to be the problem. I would make sure you get a Jap replacement (new) Asin or Dieken would be good, The lining could have also gotten hard from slipping causing it to loose it's ability to grab. Kinda like glazing your brake pads.

Willy Mammoth · « **Reply #17 on:** Oct 16, 2005, 07:24:41 PM »

I'm in FL unlike most, Glen is in Arkansas Good luck and post up some pics of the SAS project.

91 super yoda · « **Reply #18 on:** Oct 16, 2005, 07:31:30 PM »

there were a few times that i was slingin water with my fan blades, but thats been about a year, right after i put the new clutch in, i didnt notice a difference from the occurance. but i guess its a new clutch for me. what if i just went with a new pressure plate cause i sure the disc is still good, nah scratch that, ive glazed it a few times when i get pissed at it not climbing easy stuff.

Willy Mammoth · « **Reply #19 on:** Oct 16, 2005, 07:38:12 PM »

Yea, you are better off with the whole set. Don't use the old bearings too, I would hate to say I told you so. Pilot bearing and throwout bearing should always be changed. I have seen too many people skip them just to have to go back in and finish the job later.

91 super yoda · « **Reply #20 on:** Oct 16, 2005, 07:40:00 PM »

aight thanks for all the help, ill have pics posted when i get out of class tomorrow of the busted ifs, and progress as the days go by

79coyotefrg · « **Reply #21 on:** Oct 17, 2005, 06:12:22 AM »

good deal, yea im about 75 miles from texarkana

hopefully gas will go back down to a bareable price and we can hook up at gilmer

that would be sweet

kind of a midsouth roundup of sorts

shad · « **Reply #22 on:** Oct 17, 2005, 06:46:13 AM »

Make sure you have that flywheel resurfaced...
I've seen so many people throw in a clutch and call it good and wonder why they have problems early on with it because they didn't resurface the flywheel.

79coyotefrg · « **Reply #23 on:** Oct 17, 2005, 07:04:19 AM »

yep, thats a very good point, could be the reason the clutch he just put in went so fast

91 super yoda · « **Reply #24 on:** Oct 18, 2005, 09:04:37 PM »

ya ill make sure to have that done this time, i didnt do it last time cause i didnt see any heat spots and didnt feel like havin it down another day or two, but i guess im payin for it now

79coyotefrg · « **Reply #25 on:** Oct 19, 2005, 07:31:40 AM »

gotta look for those tiny little surface cracks, they will eat a clutch for lunch, but usually come clean with some resurfacing

91 super yoda [OP]

91 super yoda [OP]

91 super yoda [OP]

91 super yoda [OP]

91 super yoda [OP]

91 super yoda [OP]

91 super yoda [OP]

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