I have my rebuild finaly running and went to pick it up today. My mechanic said it was haveing some iddle issues but he wanted me to drive it around a little this weekend and build some compression and then come back next weekend so he could look at it again. Well fine. I drove it home, nice and easy following all the break in methodes. About 30 km away and my engine starts getting hot. So I pull over and it dies. Long story short. I have a 90 T2 with a fairly large street port, 3inch straight back exaust and a high flow intake. Basicly the timeing was set for a stock motor. Not a street port. Now I dont need it to be perfect. But I need this car driveable for this weekend. What should my timeing be at? I have no idea. Any help is great. Thanks.
Micheal

 

If you have an aftermarket intake and exhaust, please tell me you have some means of fuel control and perhaps an aftermarket fuel pump and larger secondaries?

Check the coolant level first. Is the thermostat new, and is your radiator still the factory original?

Stock timing should not be an issue at this point.

 

Ignition timing really has nothing to do with the (intake) port timing, especially with a stock ECU.


-Ted

 

humm. I was under the impression that the timeing did make a differance on a street port. I had a friend who had a street port do almost the same thing as mine did, and he had his mechanic advance the timeing and it ran WAY better. The coolent is good, the thermostat and rad cap are new. The rad is the origonal but it was pressure checked and flushed. Theirs no way its heating up do to the origonal cooling system. The engine is WAY under worked for how hot its getting. I need some help guys. Thanks for all the advice.

 

I really just need to know if I should be advanceing my timeing or retarding it. It really wont run how its set now. And I am sure this will help. It wont stay this rough for long, its getting done by a mechanic on tuesday but I need to be able to get BACK their with out super heating my engine. Thanks again guys.
Micheal

 

If you're messing around with ignition timing and have no idea what you are doing, don't **** with it.

Sure, advancing the CAS will feel like the car is faster, but it penalizes high RPM power (usually).
Also, advancing too much will cause detonation, which will kill your engine very quickly.

If you're running the stock ECU, don't **** with the ignition timing if you don't know what you're doing, period.


-Ted

 

The timeing wasn't even set to stock. It was retarded a long way from stock. So I set it to stock. It iddled by it self at 850 and only took a little gas to get started. This was a HUGE improvment. The rebuilt engine has only 40 km on it. So I deicded to take it for a little run to see what it was like after a little more heat. Well the engine stayed alot cooler but as soon as it got to operating temp. again it just shut down and was like it flooded. Any idea how why this is? I know I sound like a ******* idiot but bbelive me i'm not and I dont do things if I think its over my head. Thanks for the advice and concern.
Micheal

 

It sounds like the mechanic I was useing is half retarded. He was trying to fix my iddle with the timeing this far off. So I dont even know the adjustments he made with the timeing that retarded. I really think its over fueling. I have no idea. I meen when it gets warmer it shuts down after 2K rpm and wont start. Wont even turn over, but as soon as you bomb start it it fires RIGHT away. I need a little more insite guys. Its killing me not driveing this thing after a year. Thanks again.
Micheal