i was wondering how difficult it is to install a new clutch into an 86 runner... i was looking at the ones marlin sells.. does anyone know anything about those? thanks.

 

Have you ever pulled a tranny? IMO it's easy, but in other peoples' opinions it's hard... YMMV

 

does anyone know how hard it is to put in a new clutch? also, i have been looking at a heavy duty one that marlin sells.. does anyone know anything about this one? thanks.

 

To put in a new clutch is not that hard, just a lot of work and you need to have the right tools. As far as i know you have to unbolt the tranny, and crossmember holding it up. Then have a tranmission jack (or jimmy rig one up yourself) to lower it. Then take out the clutch and put a new one in and put it all back together and hope you didnt screw up.

 

Check the search, there are several clutch related threads. I put one in a few months ago. But I have also done probably a dozen in the past, so nothing new.

 

What he said. It isn't really too difficult, especially on earlier trucks. Give yourself a couple days to do it if you've never done one before. Also, you might try to find a machine shop capable of grinding the flywheel before you start. Nothing like getting into and finding you need to grind the flywheel and it's 11pm Sunday night and you have no clue who can do the work. BTDT

 

This should help-
http://www.wildyoats.com/vbulletin/s...ghlight=CLUTCH

 

It took me a day to R&R the clutch and assemble the crawler box- and that includes two hours drive time/waiting for the flywheel to be surfaced.

An impact wrench make removing/installing the hardware easier, especially the flywheel bolts - I rented an electric one for the day.

It takes a couple of long extensions to reach the top bolt on the bell housing- I used two twenty incher's and a wobble socket.

Remove the tranny and t'case as a single unit- it's heavier, but
doable by yourself if you have a tranny jack. For the cost of the labor charge to have someone else do the install, you can more than pay for the tools required to do it yourself. My only major outlay was for the tranny jack adapter form my big 3 ton floor jack; it was $80.00 at NAPA, and fits into the hole where the jack pad sits. Unless you've got a buddy named Atlas, a tranny jack is a must.


R&R the pilot and throwout bearings. Removing the pilot bearing can be a bit difficult. I tried the grease trick, it didn't work, so I drove a 3/8 socket extension into it and pulled the Pilot bearing out in pieces.

Getting the flywheel surfaced is a must- no point to putting in a new clutch on a worn flywheel, you'll have less contact to start out with and uneven wear in the long term.

While your at it, R&R the clutch master and slave cylinder- their probably due. Rebuild kits are less then $20.00 apiece. I ended up doing them shortly after the new clutch was installed- I think the force of a new pressure plate caused them to fail.

Any good quality heavy duty clutch will work fine. I overkilled mine w/ the dual composite from LC Eng.- It's held up well to 35000 miles of abuse ,but was way to positive in engagement for the firest 10000 miles or so.

later

 

i had a new clutch installed a few months ago by a shop and now it feels as though it is slipping when i am starting off in first gear but does not slip ˟˟˟˟fting into 2nd or any other gear. Although, i admit, i have abused it a little bit (once it got really hot and was slipping pretty badly, but i let it cool off and was fine) then every time after that i would make a short little drive and i would smell the clutch a little. Then i took it out driving again and it got a little hot again, but now it slips a little when i am starting off. I admit that i screwed up getting it hot those 2 times, but i dont see how i could have ruined a new clutch so fast, please help. btw my truck is a stock a 86 4runner. thanks again.

 

the flywheel is probably glazed like a donut

 

what do you mean by glazed like a donut.. and what should i do?

 

Uh oh, I think a resurfacing of the flywheel is in order here

 

i just changed mine out, but didnt remove the tranny, i did it the other way... from the engine...... i was doing an engine swap... never attempted either before and my truck works now......

 

The surface that the friction plate rides against has become very slick. When the clutch slips is heats up the surface, which will become work hardened and very slippery. to cure this problem you need to get the surface machined down a bit and a new pressure plate.

Here's how I took care of the problem on my flywheel:

https://www.yotatech.com/forums/show...5&pagenumber=3