Since I have a spare pulley wheel and I have intake out I thought I'd replace the original cable guide wheel. It rotates fine but there is a little noise from the bearing when I spin it, so wanted to install the perfectly silent new one.

The bearing is an interference fit on the bracket. I popped off the snap ring holding the pulley wheel on but pulling on it told me it wasn't going to move, so I was successful by unbolting the bracket and getting a puller on it! I thought the plastic wheel might break apart but only a small sliver of plastic came off under one of the jaws before the wheel popped off. There was no corrosion on the shaft to make it seize, so it's just a very tight interference fit.

That brings me to question of how to install the new pulley without trashing the bearing? I can push it onto the shaft with finger pressure but no further. Should I tap it down with a socket, and if so which part of the bearing should I put pressure on so as not to damage the part?

Would putting the bracket in the freezer make a difference? Should I put a little oil on that shaft?

Thanks for any advice.

 

Get some 400 grit paper and sand the shaft down this should remove any burrs from the clip
and the wheel should fit on smoothly put some grease on the pin prior to putting the wheel on so that corrosion doesn’t get a chance to get in there
DC111 will work
add a drop of oil to the bearing

 

Thanks, I'll try that

 

Just to close this, Stan's suggestion of sanding with 400 grade worked miraculously. To the eye the shaft looked fine, but after a few minutes sanding around it with strips of 400 grit I was able to push the new pulley on with finger pressure. Once I knew it would fit I worked it off, and applied a smear of lithium-moly bearing grease to the shaft (seemed the most suitable grease I had to hand), pushed wheel back on and installed snap ring,

Thanks again Stan!

 

add a drop oil to the bearing if its dry it will rust

 

I'm going to put a drop on when the assembly is installed. I'm leaving it out for now to give maximum room to tackle the crank sensor.

Thanks for solving this problem for me!