throttle sticking?

[TomFromStLouis]

The engine speed on my BJ8 seems to want to be 4000rpm. Once I get it there it tends to stick and feels a bit like an automatic by pulling me down the road without touching the gas pedal. If I slow down the car in a higher gear the engine speed drops but as soon as I depress the clutch it idles back to 4000 rpm until I quickly tap the gas pedal, which usually releases the problem. Until I accelerate again. I do not consider this dangerous but it sure is irritating and it ruins the mileage I get in the city.

How would you go about determining the actual cause of this? are there some lubrication points that need attention?

 

[blueskies]

Have you checked your throttle return spring and the pedal return spring?

 

[TomFromStLouis]

No. I see where there is a pedal return spring. Where is the throttle return spring located?

 

[rjc157]

Those are the ones on the manifold .I would also check the bearing on the firewall

 

[Healey Nut]

If the car was restored then the bearing on the firewall and the shaft bearings above where the gearbox tunnel fits may be too tight . Does it only stick once the engine gets hot ? It could be expansion from engine heat tightening the firewall/shaft bearings . The ones above the gearbox are a royal PITA to get to with the engine/gearbox in place . If the springs are all in place and good then you may have to ream the shaft bearings to get a little bit more play in them .