Rustoleum hammertone usage...
More Turbo
Joined: Oct 2009
Posts: 731
Likes: 6
From: Jonesborough, TN
Good question. I was looking at that hammartone paint this weekend as well, and noted the 200 degree restriction as well. Does someone have one of those fancy infrared thermometer and can check the valvecover temps on a running engine? It would be interesting to see how warm different parts get.
Ron
Ron
Fleet Mechanic
Joined: Jun 2010
Posts: 1,251
Likes: 8
From: North Carolina
I borrowed a high-quality laser-gun thermometer and took some temperature readings on my engine. Here they are.
After driving for 6 miles (home from work), outside temperature ~80 deg F, with engine running at idle in driveway. Pointer of stock temperature gauge pointing at the "O" in "NORMAL" (where it always points when my truck is warmed up). 1986 300 I6.
Valve Cover: 133 deg F
Upper radiator hose: 152 deg F
Lower radiator hose: 114 deg F
Engine block between 2 central spark plugs: 195 deg F
Oil filter: 184 deg F
Intake manifold: 192 deg F
Exhaust manifold: 505 deg F
Catalytic converter: 505 deg F
Then I turned engine off, let it "heat soak" for 5 minutes, and measured again:
Valve cover: 164 deg F
Upper radiator hose: 183 deg F
Engine block between 2 central spark plugs: 199 deg F
Exhaust manifold: 251 deg F
Hope this helps. I certainly found it interesting and fun to take these measurements. Someone please let me know if they see a problem with any temperature.
After driving for 6 miles (home from work), outside temperature ~80 deg F, with engine running at idle in driveway. Pointer of stock temperature gauge pointing at the "O" in "NORMAL" (where it always points when my truck is warmed up). 1986 300 I6.
Valve Cover: 133 deg F
Upper radiator hose: 152 deg F
Lower radiator hose: 114 deg F
Engine block between 2 central spark plugs: 195 deg F
Oil filter: 184 deg F
Intake manifold: 192 deg F
Exhaust manifold: 505 deg F
Catalytic converter: 505 deg F
Then I turned engine off, let it "heat soak" for 5 minutes, and measured again:
Valve cover: 164 deg F
Upper radiator hose: 183 deg F
Engine block between 2 central spark plugs: 199 deg F
Exhaust manifold: 251 deg F
Hope this helps. I certainly found it interesting and fun to take these measurements. Someone please let me know if they see a problem with any temperature.
Thread Starter
|
Lead Driver
Joined: Jul 2009
Posts: 6,477
Likes: 19
From: Sheffield, AL
Galendor,
I agree with 86fordtruck and left a "rep" for you.
Thanks for the well documented work... now I feel that I can safely paint the valve cover and air filter housing using the 200F paint.
Interesting temp. regarding the catalytic converter. I would have thought it would have been higher. How close is it to the exhaust manifold/header?
I agree with 86fordtruck and left a "rep" for you.
Thanks for the well documented work... now I feel that I can safely paint the valve cover and air filter housing using the 200F paint.
Interesting temp. regarding the catalytic converter. I would have thought it would have been higher. How close is it to the exhaust manifold/header?
Trending Topics
Fleet Mechanic
Joined: Jun 2010
Posts: 1,251
Likes: 8
From: North Carolina
Galendor,
I agree with 86fordtruck and left a "rep" for you.
Thanks for the well documented work... now I feel that I can safely paint the valve cover and air filter housing using the 200F paint.
Interesting temp. regarding the catalytic converter. I would have thought it would have been higher. How close is it to the exhaust manifold/header?
I agree with 86fordtruck and left a "rep" for you.
Thanks for the well documented work... now I feel that I can safely paint the valve cover and air filter housing using the 200F paint.
Interesting temp. regarding the catalytic converter. I would have thought it would have been higher. How close is it to the exhaust manifold/header?
That temperature was at my 2nd cat - I have 2 of them inline! Maybe the first one is even hotter?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
shultzaberger
1983 - 2012 Ranger & B-Series
10
Jan 26, 2023 09:49 AM
datchew
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
12
Mar 22, 2005 08:11 PM
