Oil viscosity and engine heating Options

[Bartlett 914]

I am driving from Chicago to Reno today. I did 22 hours in the seat and I have 700 miles to go!

I am having some cooling issues. I feel I am running hotter than I used to. I did have a lean running condition and I think I am out of the woods on this one. I installed an AFM meter. I had to boost the fuel pressure to get to 13.9 to 14.4.

The other thing I did was I used Brad Penn 20 W 50 oil. I was running Royal Purple 10 w 40. I used the Brad Penn because it was available and this oil is supposed to be the oil to use (but maybe not the viscosity) Could this be causing a heating problem? I think an external oil cooler may be in my future. FWIW, I was near the red in the early morning cool hours pushing 70. Once I got to west Nebraska and Wyoming, the heat became a real issue.

I plan on Being in Reno for more than a week, anyone want to connect up. drop a pm. I would love to hear form anyone here

[r_towle]

how is your timing? might be off after a long run and may contribute to your hot running conditions.
Consider also, remove the plastic tray under the engine lid...might give you back a few degrees.

I drove with my decklid open one hot summer day coming back from PA through NYC traffic....that did the trick....just a bit more air was all it needed.

RIch

[Bartlett 914]

how is your timing? might be off after a long run and may contribute to your hot running conditions.
Consider also, remove the plastic tray under the engine lid...might give you back a few degrees.

I drove with my decklid open one hot summer day coming back from PA through NYC traffic....that did the trick....just a bit more air was all it needed.

RIch

I took out the rain tray. This made a big enough difference to get me here.

I will re check my timing.

I got some 10 w 30 Royal Purple. I will change it out tomorrow.

I thought the altitude would make me rich also. Speaking with my customer who is a big bike fan, he said the altitude here also made him lean and had to richen up. He also said when he would go to Oregon he needed to lean out. His thoughts were the humidity was the difference.

All in all, I still have time. I will be here another week. I want to try one thing at a time. In the morning I will disconnect the air temperature sensor. In the evening I will change the oil. Still need a vacuum gauge.

[Cap'n Krusty]

how is your timing? might be off after a long run and may contribute to your hot running conditions.
Consider also, remove the plastic tray under the engine lid...might give you back a few degrees.

I drove with my decklid open one hot summer day coming back from PA through NYC traffic....that did the trick....just a bit more air was all it needed.

RIch

I took out the rain tray. This made a big enough difference to get me here.

I will re check my timing.

I got some 10 w 30 Royal Purple. I will change it out tomorrow.

I thought the altitude would make me rich also. Speaking with my customer who is a big bike fan, he said the altitude here also made him lean and had to richen up. He also said when he would go to Oregon he needed to lean out. His thoughts were the humidity was the difference.

All in all, I still have time. I will be here another week. I want to try one thing at a time. In the morning I will disconnect the air temperature sensor. In the evening I will change the oil. Still need a vacuum gauge.

10w30 is WAY too thin. WAY. 20w50's the proper viscosity for your engine and the ambient temps.

The Cap'n

The Cap'n

[Bartlett 914]

how is your timing? might be off after a long run and may contribute to your hot running conditions.
Consider also, remove the plastic tray under the engine lid...might give you back a few degrees.

I drove with my decklid open one hot summer day coming back from PA through NYC traffic....that did the trick....just a bit more air was all it needed.

RIch

I took out the rain tray. This made a big enough difference to get me here.

I will re check my timing.

I got some 10 w 30 Royal Purple. I will change it out tomorrow.

I thought the altitude would make me rich also. Speaking with my customer who is a big bike fan, he said the altitude here also made him lean and had to richen up. He also said when he would go to Oregon he needed to lean out. His thoughts were the humidity was the difference.

All in all, I still have time. I will be here another week. I want to try one thing at a time. In the morning I will disconnect the air temperature sensor. In the evening I will change the oil. Still need a vacuum gauge.

10w30 is WAY too thin. WAY. 20w50's the proper viscosity for your engine and the ambient temps.

The Cap'n

The Cap'n

Damn! Now I am not so sure what to do. For sure, my car runs hotter than it used to. I put a lot of miles on this car this year, 5K before May and I never ran so hot. Today I did some errands and the gauge went somewhat high pretty early. The "P" in temp was covered. This is not too hot! but it got there a little too fast for a 15 minute run in somewhat cool air temperatures. I have made component changes since May. I installed the correct distributor and the correct injectors. The rest is the same. Both changes made the car run nicer. This is why I was thinking the problem is the oil. That is the biggest and newest change. I never ran the brad penn 50W oil before. Maybe I will take the 30W oil back for 40W.