im going to check out a turbo motor and i wanted to get tips befor i buy it, i know about the rust inside housings through the sprk plug holes and turning the motor over a to see how good the compression is... but what would be some good advice?
im not too sure if its an s4 or s5 but im getting the wiring ecu and t2 tranny to go along with it.... thanks guys

 

Is it in a car still? If so, let it warm up and check coolant for bubbles, make sure there's good compression (as you already know). There's probably more but I need to go.

 

Compression test it if you can. If you can remove the exhaust manifold, take a look at all of the apex seals.

 

If the engine is still bolted to the transmission, you can use a battery and the starter to perform an actual compression test.

Other then that, and inspecting the spark plugs (no rust, water, etc.), oil (no coolant, sludge, etc.) and coolant (no rust), you will just have to visually check the engine. If it is covered in oil and dirt, then it may not have been cared for.

 

i seen it it was just sitting there for qiute some time i manually turned it over with my hand from the pulley and it seemed like it had a lot of compression i was some what hard to turn it over and it coud make a "ch" sound after everytipme a passed an apex...and them i put the sperk plugs back in and it was harder to turn the guy said he bought it at rotary shack

 

i found out that the motor had an automatic transmission????
it had a torque converter at one point?


and the manual transmission he had was from another turbo II so...

im wondering how to start the compression test just throw on the tranny and bolt up the starter and just like that jump the wires and watch the compression tester? no need of oiling the rotor? for lubrication?