Hey guys,

My 4k was getting really tired so i scored a 4k off a mate to replace mine. It was removed from a ke55 and was being put into a ke70. It al went in smooth enough, but now on idle and through some revs it shakes and vibrates all the interior in my car..... I really am unsure of why. That is why I put it to you rolla club to help me out. It also seems my clutch feels different, it does not want to 'pop' when i jolt on it. Just seems to a little then takes off as normal...... Please please please help me!

 

Any help is muchly appreciated, cheers.

Clutch in backwards?

Wouldn't it be scraping on the flywheel if it was on the wrong way?

It might hit the flywheel bolts but you have said that the clutch feels different or did you use the clutch from the ke55?

Nah used all my clutch pressure plate and flywheel as the engine had a torque convertor still attached ( fail )

What about the spigot bearing?

What about the spigot bearing? 

 

A very good question indeed! No spigot would lead to a lot of vibration as the g'box input shaft hammered the end of the crankshaft to bits!

 

Even if you fitted a spigot bearing it could be out of balance as that flywheel was not on that crank before. Maybe its just a bad combination... that shouldn't be much of a vibration tho'

 

You didn't take the box out did you?? Fitting the driveshaft in a different orientation can upset the balance too.

 

..and I assume the clutch is slipping if it takes off slowly when you think it should take off fast. Does the cable pressure come right off the thrust brg? You should be able to pull the outer cable back 5 to 10mm away from the gearbox arm before the thrust bearing hits the pressure plate.

 

Pop the box out and go over it all carefully. Mark the driveshaft so it goes back on the diff in the same place.

There is a new spigot bearing in there now, but there still seems to be some vibrations at certain revs and still the clutch just doesnt feel like it wants to 'pop' when jolted

Ok, so a spigot bearing got rid of the bad shaking- take a bow Mr Trev!

 

Fine vibration.. have you had the driveshaft off the diff at all? Driveshaft universals all tight? Might be flywheel/clutch balance.

 

Clutch not gripping... is the free-play in the cable correct, or is the cable holding the pressure plate from clamping up tight?

There is still some shaking, and it is starting to annoy me! erghhhhh. As for the cable, ill have a play around tomorrow. It was all put back in the same spot and everything alligned, but once again I guess its just trial and error on things

did you check it was the right size on the input shaft?

 

repco usually gives the wrong size spigot bearing if you ask for one for a 4k, unless they have changed the fakring listing after me carrying on at my local repco bloke lol.