Hey,

Can someone direct me to a DIY on Throttle body shaft seals? Is it difficult or would taking it to a shop be the smartest option

 

A simple search..

https://www.evolutionm.net/forums/evo-how-tos-installations/220264-how-replace-throttle-body-shaft-seals.html

I just did this to my evo couple weeks ago. I usually mess up when installing these things, but I got it right the first time. I think the hardest part is not messing up the seal when pressing them in. I used a nickel and socket and lightly hammered them in. If your worried about messing up by two sets.

 

When I purchased my throttle shaft seals from Mil-Spec, they included a blueprint for a seal driver. I had one made out of stainless steel for about $10.00. Its worth it. Almost can't screw up the installation, and I'll have it for the future.

 

 

i did mine, its easy. but i'll tell you what, fortunately i had bought 2 seals just in case i mess up. yup sure enough i messed up and the 2nd one was put in and good to go. no leaks.
i bought the milspec ones.
also on a side note, i dont know the condition of your car but u might want to change the tb gasket as well since ur already removing it.