79 turbo with 87 heart transplant

[Baxter2422]

JAfter being totally ripped off by the seller I am now the owner of this 79 930 with an 87 motor. Not all bad beautiful car but not what was represented.
I have a couple issue that I am trying to resolve, having resolved many already.
The car would not run but it was so far out of time and the fuel mixture was way out.
I have corrected timing and have set the fuel mixture this way.I had the car running and clicked the mixture screw one click to lean when it stopped running moved it one click back to rich and it runs, that is where I left it.
One major issue is when starting out in first from a dead stop, not every time, letting out the clutch the car shacks violently. I am not a mechanic but like the pressure plate I s warped. It shock so hard this last time it popped the car out of gear. I know the engine has been out of the car, supposed to have new clutch but he lied about everything else. Any thoughts, clutch adjustments? Can no longer drive out of fear of breaking something, it is that violent
When should the boost begin to show up sometimes it seems to start coming on and sometimes not?
When I start the car I have managed to set the idle at about 950 but after driving a short time the car will not hold idle, the car will actually die at a stop sign.
One last thing when shifting between gears the throttle does not back off sometimes the RPM increase, spring missing maybe.
I have a good bit of common sense, apparently not when buying, so a few thoughts as to action to take would go along way.
Thanks in advance

[quattrorunner]

It seems like your fuel is off but your ignition might be too? You'll probably need help. I use an afr gauge to idle afr and the timing light for ignition. Might need to take it to someone with these.

[heliolps2]

where do you live ? maybe we can find some to help near you, If your in northern VA, I would love the challenge,

[kenikh]

No pictures? Doesn't exist...

[Ronnie's.930]

Baxter, regarding the clutch release shudder - this is difficult to explain in writing, but sticking out from the firewall is what is called a bowden tube, and the housing/sleeve of the clutch cable slides onto it . . . if the clutch cable is not positioned perfectly on the tube, so that the cable has a nice arc to it that travels smoothly over the throttle bell crank on the gearbox, then you will get the exact judder that you describe when releasing the clutch from a stand still. I do not know the exact reason for this, but have experienced it first hand. I'll post a picture of the correct positioning as the rear of my car is in the air right now.

Also, if the cable is not the right length (some aftermarket ones are not), and/or it is stretched, the same judder can happen. Again, I don't know how to explain the reason why, but have seen it in person.



The engine speed increase when you release the throttle to shift gears could also be clutch cable related - the clutch and throttle cables could be in contact in the tunnel between the seats (have to look down it with a flashlight and mirror, from the area of the accelerator pedal - a real pain in the ass, face plant is required to do that, unfortunately), or the clutch cable could be interfering with the throttle bell crank on the transmission if installed wrong.

[Ronnie's.930]

The first and second pictures show the proper arc of the clutch cable over the throttle bell crank on the gearbox.

The third picture shows the how the clutch cable should be positioned on the gearbox adjustment point.

The fourth picture shows the cable on the bowden tube.