What I have seen 3x so far is the oil pump failing for some reason with the stubby shaft. Not on my own car BTW. Perhaps the lack of proper support? I am not really sure, but the turned down shaft seems like a better solution. Why do the stubby shaft thing when you can just bring the shaft to a machine shop and have it put on a lathe for about $40? I was a little worried about taking out the shafts, but now that the car is running, I am very happy that I did. 9K shifting here I come

 

47 posts on a simple procedure, used for years on 4g63s. Wow.

 

none of the machine shops around here have lathes

 

If they don't have a lathe, they're not a machine shop. Even if they do have a lathe, they may not be a machine shop. I'm looking in my garage..... Yep, there's a lathe. Nope, I'm not a machine shop.

 

well your more than welcome to come to tx and tell these guys they're not a machine shop

 

i removed both, im hoping to get time to put my motor in the car today actually.

 

i put the cut off shaft back in the motor. hopefully i'll have luck with it

 

Did you notice whether there was an oil passage drilled through it when you cut it off?

 

Do you mean an enlarged passage, or the presence of one in general? I wasn't aware of the existing passages in the shafts being eliminated by having it lathed.

 

there wasnt an oil passage in the one that was cut off. the rear(?) one has the oil passage right

 

is there something else we could put in place of that screw on the bottom right corner of the pump case mine was stuck in there and i had to drill it out would it be ok to put a bolt in there instead of the factory screw i really dont want to have this problem again

mine came out looking like this

 

mine started to round off so i just stopped messing with it. I had a spare front cover so im not worried. I dont see why you could use a bolt insteat of a screw they'll be doing the same thing...

 

These were posted on dsmtuners but i cant find the thread anymore there are around 20 pages of balance shaft threads

shaft and pump case


cut off this part


turn the rest of the shaft like this


until it looks like this

 

those pics would have been better than the ones i put up for reference

 

i just found out that there are 2 types of stub shafts that come in the kits one has an oil groove like the stock shaft and the other doesnt... its recommend not to use the one without and that is what cause oil pump failures