rod bushings

[Livingston]

My machine shop let me know that 2 of the bushings on my connecting rods are worn out of spec. They wanted me to see if I could find a replacement.

Has anyone else had this problem? If so, what was the solution?

Thanks.

 

[HopefulSHO]

Bearings? You can get a new set from Napa for around $60.

 

[Livingston]

Bearings? You can get a new set from Napa for around $60.

No, the machine shop guy said "bushings." Because he has all the rods and I have none, I can't take a look at what he was talking about. I believe he was referring to the bushing on the rod that holds the piston pin.

 

[revhardSHO]

No, the machine shop guy said "bushings." Because he has all the rods and I have none, I can't take a look at what he was talking about. I believe he was referring to the bushing on the rod that holds the piston pin.

Hmmm - There are bushings on the connecting rod. Only thing I can suggest is what hopefulSHO already mentioned - Rod Bearings. Was the motor knocking?

 

[Off Road SHO]

If the machine shop was asking, they were talking about the wrist pin bushings in the small end of the rod. They are special helical split design so I don't think you can use a regular bushing. The installation of that type of bushings is difficult if you don't know what you're doing so be careful.

I've never installed a spiral bushing, but for regular pressed-in bushings, it's rather straight forward.

1) remove old bushing with a press or large vice.

2) Press in new bushing, making sure oil holes are lined up.

2) Ream out new bushing to exact size, since pressing in a bushing makes it smaller in diameter.

I ought to learn how to do that spiral bushing some day.

Tom

 

[DHMag]

If the machine shop was asking, they were talking about the wrist pin bushings in the small end of the rod. They are special helical split design so I don't think you can use a regular bushing. The installation of that type of bushings is difficult if you don't know what you're doing so be careful.

I've never installed a spiral bushing, but for regular pressed-in bushings, it's rather straight forward.

1) remove old bushing with a press or large vice.

2) Press in new bushing, making sure oil holes are lined up.

2) Ream out new bushing to exact size, since pressing in a bushing makes it smaller in diameter.

I ought to learn how to do that spiral bushing some day.

Tom

Tom, that seems like an awful lot of work just for one wrist pin. what i do is put the rod and piston in a preheated oven (200 degrees) for 5 minutes. then the pin simply drops out of the piston.

 

[Off Road SHO]

Dale,

Actually, the oven is a lot more work than the vice if you're only taking out the pin. The pin will come out with a pair of needle nose, two scokets, and a hammer.

This guy is talking about the bronze bushing that the pin rides on that is pressed into the piston.

And do your roasts smell like old 30w by any chance?

Tom

 

[DHMag]

Dale,

Actually, the oven is a lot more work than the vice if you're only taking out the pin. The pin will come out with a pair of needle nose, two scokets, and a hammer.

This guy is talking about the bronze bushing that the pin rides on that is pressed into the piston.

And do your roasts smell like old 30w by any chance?

Tom

my roasts smell like baked enamel finish

this bronze bushing youre referring to...ive never seen it ? ive only seen a machined aluminum surface with oil groove and oil hole. perhaps you could show me a pic of the bronze bushing ?

by using the oven. i remove one keeper, put the rod and piston in the oven, remove from oven and the pin slides right out without using a hammer and dowel. also, this method insures you dont **** the pin in the piston.

 

[Off Road SHO]

Sure, I'll take one apart tomorrow and take a pic and post it.

200 degrees eh? I'll have to try that when my better 13/16 is not looking.


Tom

 

[DHMag]

Sure, I'll take one apart tomorrow and take a pic and post it.

200 degrees eh? I'll have to try that when my better 13/16 is not looking.


Tom

preheated 200 and leave it for 5-7 minutes. after 5 minutes, it was still a little cold. i put it in for another couple minutes. upon removing from the oven, i forgot an oven mitt.....

 

[Off Road SHO]

Here is a pic of the bushing in the small end of the rod. It has a helical oil groove in it that transfers oil from the piston's matching oil groove.

Tom

 

[Red Baron]

I'll have to try that when my better 13/16 is not looking.


Tom

 

[pjtoledo]

Lets not forget that 3.0 and 3.2 have different size wrist pins and rods/bushings. As the catalog says, please specify size when ordering!!!

Perry

 

[DHMag]

Here is a pic of the bushing in the small end of the rod. It has a helical oil groove in it that transfers oil from the piston's matching oil groove.

Tom

hmm, ill have to find my rods and look. i dont recall seeing any bronze insert.....