I have a 1987 mq nissan patrol turbo charge 4x4.my problem is there is a "rattly" noise when under load in 1st,2nd,3rd and 5th gear. When in 4th gear it is as quiet as a mouse. Can you advise what may be the problem.I have drained the oil and there was a little bit of very fine metal, no big pieces of metal.I filled the gearbox up again and added a "nulon" product,but it is still there just as noisy. regards Gary sawyer

Probably issues with Shift Solenoids. You need a transmission specialist or an auto electrician with a pro grade bi-directional scan tool computer that can tell the solenoids to operate and confirm that they did. Or it is the powertrain module that is at fault.

time to put a new tranny in that jet most of the time it costs to much to repair it then replace it i have done may tranny rebuilds and replacements to me i would just tell you to replace it at least you will get a better warrentee and stuff

the noise is probably a lower counter shaft bearing, the reason you don't hear it in 4th is because 4th is the only gear that does not use the counter shaft. there is no easy way of fixing it it is the first part installed when the trans. is assembled and the last thing removed when the trans. is disassembled.....SORRY

It is a 5 speed manual transmission? If it is noisey in all gears except for 4th, then the problem is countershaft bearings.

the function of the gears are to transfer and convert energy created by the engine into momentum

Hi:

Your transmission has 3 shift rails...
1st - 2nd
3rd -4th
5th- Reverse

If your 3rd gear doesn't work , you have an internal transmission problem, such as a syncronizer, or similar fail... There is not much you can fix, without removeing the transmission.

Hi
Either a broken linkage or selector problem inside g/box.

Regards
Phillip

cyl head torqes.1st stage 29 nm. 2 nd stage 57-67 nm. 3rd stage slacken off 360 cegrees, 4th stage 29 nm. 5th stage 64-74 nm. intake and exhaust valve clearance .38 mm hot setting. hope it goes ok.

J1/S1 Found in: Integra XSI/RSI (DA6) Type: Cable 1st: 3.230 2nd: 2.105 3rd: 1.458 4th: 1.107 5th: 0.848 R: 3.000 FD: 4.400 Y1 Found in: CRX/Civic (optional LSD) Type: Cable 1st: 3.166 2nd: 2.052 3rd: 1.416 4th: 1.103 5th: 0.870 R: 3.000 FD: 4.266 YS1 Found in: Integra 92-93 XSI/RSI (DA6, DA9) Type: Cable 1st: 3.307 2nd: 2.105 3rd: 1.458 4th: 1.107 5th: 0.880 R: 3.000 FD: 4.400 S80 Found in: Integra Type R 98+ (LSD) Type: Hydraulic 1st: 3.230 2nd: 2.105 3rd: 1.458 4th: 1.034 5th: 0.787 R: 3.000 FD: 4.785 S80/Y80 Found in: JDM SiR-G (optional LSD) Type: Hydraulic 1st: 3.230 2nd: 1.900 3rd: 1.360 4th: 1.034 5th: 0.787 R: 3.000 FD: 4.400 Y21/Y80/S80/S4C Found in: JDM 96-97 Integra R(LSD) JDM Civic R [EK9](LSD) JDM Civic SiR [EK4, EG6] JDM CR-X DEL SOL SIR (EG2)(optional LSD) USDM DEL SOL VTEC (EG2)(OPTIONAL LSD) Type: Hydraulic 1st: 3.230 2nd: 2.105 3rd: 1.458 4th: 1.107 5th: 0.848 R: 3.000 FD: 4.400

Well, you say the noise is in 1st, 2nd, 3rd, and 5th, and I assume this is an overdrive tranny with the overdrive in 5th.

This means your 4th gear is more than probably direct (1:1) ratio.

Meaning you have a bad countershaft bearing(s), or gears...

In direct, your countershaft still spins but carries no power/torque to the wheels (it is basically just freewheeling), input shaft speed/torque goes directly/is locked to the output shaft, so you don't hear the noise; in any other gear, where the countershaft bears a load, you hear the bad bearing or gears.

Either way your tranny has serious internal issues and needs to be rebuilt before it destroys itself.