over heat fuel mixture?

[porsche930dude]

My 82 sc 3.0 is running hot. Like 250 usually and sometimes it can get almost up to 300. It always has run hot i just didnt realize that was too hot. I think it usto run a bit cooler usually but since iv changed to mobil 1 15w-50 its pretty much always hot. I know its probrobly because my trombone cooler and because the lines are very crushed. I plan on fixing the lines this winter and ill try to obtain a cooler by then. Probrobly a 28 row brass style would suffice. Anyway i suspect it may also be a mixture issue. I know the ajustment screw is up nexto by the fuel dizzy. Is it safe to just richen it up a bit without messing with anything else? I think iv read it clicks when you ajust it and your suposed to do it when its running. Do i turn it counter clockwise to richen it and is one or two or three clicks good to try? Does this all sound correct? Also i was thinking id add a cool collar it coudnt hurt but i cant find them anywhere should i bother? Any suggestions would be appreciated.
Also there are no nests in my shroud and iv removed the ac components to get more air in there but that didnt seem to help much. Also iv cheacked the temps at all points on the lines and at the engine cooler and there around 180 at the thermostat and around 160 at the trombone and 200 at the engine oil cooler and my guage is reading correctly becaus ei checked it with a mechanical guage. This is all while the guage was reading about 260

[porsche930dude]

iv also got a question reguarding the rear fog light on euro cars. I have wires that are twisted around the fender support bracket they are a translucent red and yellow could these be for the euro light? It wouldnt make sense because my car is suposedly a US car. I suppose i could just test them eh

[Paulporsche]

Running hot can be caused by a number of things.
Maybe your timing is advanced a little too far.
Your mixture could be lean, as you said.
I think your crushed oil lines aren't helping.
Have you verified the front oil cooler is working? Try spraying some water on it once the engine is hot. Do you get steam?
Is your oil level up to the half way point between low and full on the dipstick?

BTW to richen the mixture turn the 3 mm allen screw in the mixture control unit CLOCKWISE in 1/16 or 1/8 turn increments. And they usually don't click while turning. You can do this w/ the engine off or on. Just don't leave the tool in while revving the engine.

[porsche930dude]

Yes my oil is at the correct level. Seeing as how the front cooler is almost the same temp as it is before the thermostat i would think that oil is flowing through. Thanks for the info on the mixture i dont have the special porsche allen key for that but i can make one. Speaking of which can someone measure exactly how long the tool is for me? that would eliminate the guesswork and you said its a 3mm allenm key correct? Thanks again

[Paulporsche]

The tool should be no longer than about 4 7/8".

Have you ever had your mixture set by someone w/ a meter?

[porsche930dude]

No i havnt. Iv done all the work on my car since iv had it (about a year). I havnt checked the timing either but i plan too sooner or later just to make sure its within spec. What type of meter is used and how do you use it? My brother is a mechanic so we have access to some of that type of equipment

[Paulporsche]

If you do a search you will find a lot of info on all of this.

A timing light , or gun, is used to set the timing.
An exhaust gas analyzer will give you a baseline setting for the CO.
Unless you have to meet an emissions testing spec, JW recommends 3.5% CO.
You can also search poster Souk. He has a field test for checking CO, but I think you should have it first set by someone who can give you an exact figure.

[tcar]

I would get the crushed oil lines fixed first. Even if there is some flow, there's obviously not enough flow.

Right now that's your big problem; changing the mixture won't fix this.

Seriously.

[porsche930dude]

i think you are right tcar. I ajusted the mixture about 1/4 turn and id didnt make a bit of difference infact it may be even hotter now. I think ill ajust it back a little and let it be for now. I have a timing light so i will check that soon. My brother said his shop no longer has an exhaust gas anylizer so i cant do that. I suppose ill tough it out till winter and do the lines and ill get a better cooler by then and to that at the same time. Today i made a marker light duct that came out awesome. Ill post pics probrobly tomorrow. Its made out of a shovel and a valve cover from a bostitch air compressor and i used mesh from a briggs and stratton air filter Only took me like 4 hours to make it including paint

[Paulporsche]

If you search you will find several discussions on uncrushing and/or replacing lines. Check out the finned oil lines (Elephant?) that are supposed to dissipate more heat

[porsche930dude]

iv thuroughly read the treads on uncrushing the lines. I think the easiest way is to just cuto out the whole bottom section and silver solder in new plumbing. Which shouldnt be a problem seeing as how the solder melts at 435 degrees or somthing like that. And its really only only the bottom line thats bad. the upper line only has two minor dents at the jack hole bend which i may expeariment on the cut out piece to try and pop it out or i may just leave it since there really not too bad. And the elephant lines are more than id like to spend especially since im confident i can fix them for nexto nothing. Heres some shots of the duct i made. I just couldnt see spending 100$ for a plastic one

[Paulporsche]

Nice looking duct.