[mr.chevelle]

Hey got a queston on a 86 nissian.I know its not as cool as the chevelle but i drive it back and fourth to work.Any ways its a pickup and after you drive it a while it grinds going into 3rd and just a little in 5th.Up till it gets warmed up it does fine no grind or nothing.Any body got any ideals?Im hoping it just might be low on trans,fluid and after it gets hot Its thinning out and causeing it.I thought it could be the sycanissor but wouldnt that cause it to grind either hot or could,Any ideals would be helpfull.THANKS

[akm]

clutch?

[mr.chevelle]

I had thought of that since my clutch is releasing pretty far up.Ive just never seen one act like that they just always stated slipping on me.I only gave 150 for the truck put a couple hundred into it and thats counting a new paint job i put on it and ive drove the wheels off it about 120 miles a day so if i do have to put a clutch in i dont guess i should grip

[jimfulco]

If the clutch is releasing pretty far up, it's probably not the problem. I'd check the fluid, both for level and proper type. Some manual trans's use ATF, some use 90W gear lube.

[adtkart]

I think Jinm is on the right track. Although I have heard of hydraulic clutches acting up after being driven for a while, I would think it is likely a fluid problem. Since it gets worse after driving, I would think maybe it is getting too hot. That could be from being low or the wrong fluid. Some use the fluid more for coolant than lubrication. Some just need the lubrication. Check and find out what fluid it is supposed to have in it. Don't just assume what it is supposed to have.

As an added note. If you drive with your hand on the shifter. STOP. That causes wear on the nylon inserts and shift forks in the trans. That has a tendancy to cause shifting problems. May prevent it from coming all of the way out of gear and going all the way into gear.

[mr.chevelle]

well i dont drive with my hands on the shifter but who knows what the people who had it before done.

[bowtieeater]

First things first, drain your tranny oil and look for metal. If you have what looks like very fine glitter in the oil, that could be normal wear. If you have large chunks to something about as course as normal sand, then you have problems. Try adding new oil and some Lucas additive. Also manual transmisions generally don't run hot like automatics. It will get very warm, but not enough to break down your oil.

Also if you have a cable type clutch linkage, or a linkage made out of metal rods. try to adjust it first, or get someone to adjust it. If your clutch isn't slipping then don't replace it. If you have a hydraulic clutch then there is no adjustment. Also make sure when you press the clutch pedal in that it goes to the floor. Don't just press it in halfway. If all else fails, you may need a tranny, but I wouldn't worry about that until it stops working completely. Nissans are good trucks and you probably have nothing to worry about though. Check your oil first!