Help needed: MFI linkage fix

[Bummler]

On the drive home from Monterey I noted some stiffness developing in my throttle linkage and what felt like a "step" in the linkage.

After getting home I traced the problem to the bell crank (deflection lever) at the back of the motor which connects the throttle rod emerging from the fire wall connecting to the deflection shaft. The bushings on the bell crank apparently have failed.

I've ordered the parts. My question is can I do this w/o removing the motor? Access is dicey and my hands and fingers are not as nimble as they once were.

Advice and any photos of he actual crank, the back side of the motor, and how it all fits together much appreciated.

[kenikh]

Stefan, the car below is pretty dirty, but should help. The owner had to do the same thing you are looking at.




Jack the car up onto high jackstands using a hydraulic jack. This will give fellas of our size more than enough room to easily move around underneath. An undercar rolling dolly is a big help, too.

I just buy the cheap harbor freight stuff for low tech items like these tools (if you don't have them already).

[kenikh]

Also, here's an exploded view of the assembly from the PET.

[911quest]

The rod that the bellcrank uses is threaded into the trans. An 8mm wrench will loosen it to remove it then you can take it all off in one assembly.

[Bummler]

Kenik thanks in advance for your help.

The bell crank I was referring to is inside the engine compartment behind the #3 throttle body. A real pain to access especially when you have huge arthritic hands like mine. So I'll likely leave this one to the pros (Tony and Marco) at TLG...

Be well...

[edmayo]

Even though you'll have the 'pro's' do this, the answer to your question is that you remove the injection stacks which greatly improves the access to the bellcrank. Then you can slide the bellcrank partly off the shaft (the shroud is in the way) and use new plastic bushings. The plastic will let you slit the inner bushing and slip it on the shaft. The outer bushing will slip on the shaft from the end in the normal fashion.

[Bummler]

Even though you'll have the 'pro's' do this, the answer to your question is that you remove the injection stacks which greatly improves the access to the bellcrank. Then you can slide the bellcrank partly off the shaft (the shroud is in the way) and use new plastic bushings. The plastic will let you slit the inner bushing and slip it on the shaft. The outer bushing will slip on the shaft from the end in the normal fashion.

This option/method has been discussed... Thanks

[eapcpa]

That is a challenging fix at the throttle body, I used the correct sized bronze bushing so I won't have to replace them again. The plastic will last a long time but the bronze is practically permanent. I think Performance Parts (Automotion?) has them and they are the same size as the bushings at the pedal bell crank which is included in the pedal bushing rebuild kit. The tranny bell crank uses the same size as well.