Cable throttle body maintenance/ repair?

[chris blue]

Any of you with a cable operated throttle body on a clio 172 will know that when it starts sticking, or yo yoing, its a PITA.

So, having changed the throttle cable albeit aftermarket, and noticing the revs went both up and down, so prob not a sticky throttle cable, the throttle body was changed.

90% of my problem was then sorted but not completely. So, i will change throttle cable completely to a renault one in Spring, but feel it is the throttle body flap return mechanism sticking.

I will send it off for a new spindle and clean up in a month or 2, but in the meantime will now clean the body which was giving all the grief

Point of post is, where do i start to clean it. Any tips? Or us it just clean all over. Any areas to pay attention to? How you get at the spindle?

Thanks

 

[chris blue]

Looking at my first throttle body and trying to identify the problem, I can see that when you turn the black wheel to open the butterfly, the black wheel moves from spindle end to spindle end by a couple mm at least

Looking closely, it looks like the return spring has movement on it causing this movement, so do they do a replacement return spring, or I might be creating one myself

Be good if there were a guide to dismantle the body.

Any other advice on how to resolve. I could send it off for spindle, butterfly change and rebore to 64 mm, but that wouldn't sort the spring....