View Single Post
Old 06-14-2016, 03:26 PM   #24
Mitch//pa
BANNED
 
Join Date: May 2010
Location: Bucks County, PA
Posts: 11,454
Default Re: Zenith rebuilt. No power past 40mph

Quote:
Originally Posted by steward614 View Post
Also I noticed there is a small bit of play in the throttle shaft. However does not effect idle so I didnt think it would impact high end speed performance.
If there is play in the shaft air will get by it. Since your's is very little you may not notice the subtle differences but there are some occurring basically when the plate is closed. Other than running erratically leaner at idle I have had the rpm's stick a little higher from these shafts being worn. Going under the hood and manually pushing it against the throttle stop screw lowers it.. This is with no linkage binding and a good return spring on the accel bracket assy. All it takes is to open the hole up with a drill bit to install the oversize shaft.. Very easy fix...
Mitch//pa is offline   Reply With Quote