restarting motor after a very long hibernation
 

Hello, I just picked up an 88 911 cab with very low miles that has been sitting for many years. The car is in excellent condition.

I have removed the fuel tank and cleaned it out. I have removed the injectors and having them cleaned and checked. All fuel lines are blown out. New fuel pump ordered.

I removed the plugs and sprayed in some light oil and turned the engine by hand to ensure it isnt frozen. Turned very easy just using my hand on the belt.

I am going to change the oil and I am planning to turn the car over with the starter (no spark or fuel) to get oil flowing through the motor. Is this the best way to approach this? Is there anyway to pump it through the system without turning over he motor?


Here is how I found her:

http://forums.pelicanparts.com/uploa...1639184203.jpg

And after a bath getting some much needed love:

http://forums.pelicanparts.com/uploa...1639184442.jpg

Sounds good. Do everything you mentioned and crank it over with ignition disabled until it builds oil pressure....Nice car BTW.

M491 cab
 

Just remove the plugs and crank it over until you get oil pressure.I would not worry about pistons or rings as the oil tank has sought its own level with the crank case.Nice find and rare car.When you start just let it idle for 5-10 minutes before you attempt to pick up revolutions as the system will flow any varnished fuel back to the tank.Buena Suerte.Fred

the find
 

Great 1st post.What is your Porsche history?Ciao

Thanks guys, I really appreciate the feedback. I want to do everything as perfect as I can. I have owned and restored a number of cars over the years, but this is the find of a lifetime. One owner, 8,800 miles. Slowly working my way through the systems. It will be at least a week or two before I attempt to start the car. Fingers crossed. My first Porsche.

In 1999 he had an Autothrity MAF /chip and SSI exhaust installed. He said it made it drive a lot better, and drove it about 2k miles before parking it. I have the original exhaust, but he cant locate the original air box and AFM. I am not too crazy about the autothority "upgrade" but I have other stuff to deal with before that.

I didnt see your post as I was writing. No real Porsche history for me....yet. I have always been a BMW person. But I have ventured into some oddball stuff like a Model A and a FJ40. A couple of friends tell me I have finally arrived. :)

Is that a real M491 Turbo-look cab? What a score.

Mark

Familiarize yourself with the fuel circuit hoses, particularly the engine bay hoses. Obvious fire hazard w/ old hoses. Change the fuel filter.
The Bentley Manual is a great resource for technical knowledge.
Have a fire extinguisher or two handy for the start up.
There is no shortage of vacuum lines at the rear of the engine near the fire wall. Check those thoroughly.
The intake manifold to head gaskets/spacers/gaskets may be loose/tired.
Familiarize yourself with:
Cylinder head temp sensor
The two flywheel position sensors
The ICV - idle control valve - sticky = bad
Depending on storage climate there may be electrical connectors w/ hidden corrosion.
With battery disconnected (consider a disconnect switch) remove the fuses and make sure the fuse/fuse block connections are clean and there is good spring tension.
The Carrera contains the worlds largest supply of hidden ground (brown wire) connections known to man. Look between the front fuse boxes and the hood hinge for a group, several in the engine bay. Check the main engine ground wire conveniently located between the front of the transmission and body underneath.
Check the rear (engine) fuse box/relay panel as well.
Remove the fan belt and save it for bragging rights. Take an endo-scope and look through the fan to search for mouse nests. In Maine, acorns migrate here. Give the fan some spins, put on a new belt.

Great find. Good luck with getting things squared away. Looks like you are getting excellent advise here.

Thank you @Tea Tray for the great advice. I purchased the Bentley manual and have the 101 projects book on order. The Bentley has great illustrations.

I havent found much corrosion, thankful the owner had a gel battery so the battery area was still in great shape.

http://forums.pelicanparts.com/uploa...1639230804.jpg

The only deterioration that I have found was the rubber covering on the wires shown below. The bottom two wires (engine side) just fell apart when I removed the bracket. I havent researched what they do or where they go yet. I have had the same issue with some wiring on my 87 bmw m6. It must have been a material that just rotted over time.


http://forums.pelicanparts.com/uploa...1639231114.jpg

http://forums.pelicanparts.com/uploa...1639230804.jpg



Wow, that is clean as they come.

I thought I would update this thread. I have been pretty busy over the last several weeks getting the 911 back on the road.

- cleaned fuel tank, lines and injectors, new filter and fuel pump
- New plugs, adjusted valves, and cover gaskets.
- new brake lines, flushed brakes/clutch fluid, rebuilt one caliper (turned out to be a plugged up brake line).
- Oil return tubes
- New crank position sensors
- shifter bushings
- tires and struts/shocks

Those were the main things, I am sure I left a few things out. Not too bad for sitting almost 15 years. The car runs and drives like a dream! I really enjoy driving it, especially after getting the oil out of the heat exchangers!

I brought it over to a friend that is a big Porsche collector and we swapped cars for a short spin. The GT3 was incredible.


http://forums.pelicanparts.com/uploa...1642978769.jpg

def a nice find, enjoy!