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View Full Version : spray painted my exhauast/ muffler last night.!! smoking!!! PICS. help


DillonsLawnCare
10-07-2007, 11:58 AM
hey guys, i spray painted my exhaust last night with some glossy paint that can withstand 500 degrees!! so i paint it, put it on this morning and when i turn the mower on, ths thing starts to smoke. i know its burning off all the paint, but will it always smoke like this until all the paint is gone? the paint is supposed to withstand that heat. i dont know. im confused. the smoke smells bad too.

heres some pics. it looks a whole lot better!!!
:weightlifter:

PlatinumLandCon
10-07-2007, 12:11 PM
It might only smoke for the first few heat cycles until the paint sets. I'm not sure what temp the exhaust gets to but I think less than 500.

DillonsLawnCare
10-07-2007, 12:13 PM
It might only smoke for the first few heat cycles until the paint sets. I'm not sure what temp the exhaust gets to but I think less than 500.


i hope so.

thankss

ExclusiveLawnCare
10-07-2007, 12:18 PM
Looks good, but lets hope it lasts, becuase I've used some 500 plus paint and some 1500 type paint and they dont always work.

DillonsLawnCare
10-07-2007, 12:19 PM
what does it do, does it like melt off like wax and drip everywhere??

topsites
10-07-2007, 12:20 PM
I think exhaust temps go up to 2 and 3 thousand degrees :laugh:
Don't feel bad, it'll be alright, she'll just smoke for a bit.
Might fire up at some point, but just stay away from dry brush.

PlatinumLandCon
10-07-2007, 12:23 PM
I think exhaust temps go up to 2 and 3 thousand degrees :laugh:
Don't feel bad, it'll be alright, she'll just smoke for a bit.

Really?? You can put your hand by the outlet and the gasses aren't too hot. Steel melts at 2500F.

KTO Enterprises
10-07-2007, 01:01 PM
An automotive catalytic converter will easily get to 1,800 degrees. The best paint i have cound for an exhaust is grill paint.

fox9988
10-07-2007, 01:15 PM
My Cummins Diesel exhaust gas temp. reaches 1300F[egt-guage].I would guess a gas engine would run cooler.....Wood stove paint may be rated higher than 500F.

DillonsLawnCare
10-07-2007, 01:17 PM
well, isnt it kinda too late to paint it again...

topsites
10-07-2007, 01:31 PM
awrite maybe it isn't 2-3g :)

I don't know, but it does get way hot.

well, isnt it kinda too late to paint it again...

It sure looks nice, want to come paint my truck?
White, I'm thinking.

DillonsLawnCare
10-07-2007, 01:45 PM
haha no thanks topsites

Vikings
10-07-2007, 01:50 PM
They must get hotter then 500 degrees Fahrenheit. It seems to me I've seen them glow red in the dark. 500 degrees is about where you cook a pizza..

fool32696
10-07-2007, 02:10 PM
Air cooled engines run really hot, I'd guess the exhaust is well over 1000 degrees

lawnman456
10-07-2007, 02:38 PM
do touch it lol.

i burned my arm on my 10 hp leave blower last year and i still have the mark from it. a few times i had to work late and it gets dark early and you could see the exhaust and it is red hot. the front side is not very red. but the back side is glowing. just be very carefull
just let that thing run and it will stop. i won't worry about it.

kc2006
10-07-2007, 02:43 PM
try the grill paint or the 1500 degree paint. I think POS15 makes a high heat paint.

They say shut a diesel down at 1350 (some makes), with dyno testing the headers on high hp race engines we make get up to 1000-1100, 1400 is about peak, anything higher and something aint right. I doubt a 30hp or less air cooled engine will get much more then 1400. But almost all spray paints will crack and chip eventually. Only good thing to do is ceramic coat it, but whos gunna drop a couple hundred on a muffler?

Restrorob
10-07-2007, 04:10 PM
Here is a paste from a post I made back 5/31/06, It gives you a idea of running temps on these air cooled engines;


Have you Guys seen the show Myth-Busters ?
Well I performed my own experiment.

Test engine; Kohler CV25S Spec. # 69511 Freshly Tuned and Serviced With 828 Hours, Mounted on Sears Garden Tractor With Hood Removed To Simulate Open Cockpit ZTR
Test Equipment; Raytek Raynger ST Non Contact Thermometer
Chepo Walmart Stop Watch

Areas Tested; Center of # 1 & # 2 Valve Covers.
Rear Center of Engine Block.
Center of Muffler.

Test Went as Follows;
Cold Start-Up and Idled 1155 RPM For 30 Minutes.


#1 V.C. 158 Degrees ---#2 V.C. 155 ---Block 192 ---Muffler 480

Engine At Full Throttle 3700 RPM No Load For 30 Minutes.


#1 V.C. 160 ---#2 V.C. 158 ---Block 198 ---Muffler 462

Engine Back At Idle 1155 RPM For 4 Minutes.


#1 V.C. 146---#2 V.C. 142 ---Block 190 ---Muffler 396

The full throttle Temperature most likely would have been a little higher had the engine been under load mowing but I could not perform that test on company time.

Dirt Digger2
10-07-2007, 04:42 PM
try the grill paint or the 1500 degree paint. I think POS15 makes a high heat paint.



even that doesnt work...i had an old ford 8N and painted the exhaust manifold with that black grill paint because i was tired of looking at the rust color...it burned all the paint off within 5 minutes...i was ticked

hdtvluvr
10-07-2007, 05:01 PM
I bought some high temp paint that contained ceramic material for a muffler on my John Deere. The directions on the can were to paint the part, let dry and then bake it in an oven. I think there were 3 separate bake / cool cycles with the temperature being increased between bakings.

It produced an odor in the house for a short period. I did it about 4 months ago and it still looks good. Bought it at an auto parts store.

J&R Landscaping
10-07-2007, 09:41 PM
try the grill paint or the 1500 degree paint. I think POS15 makes a high heat paint.

They say shut a diesel down at 1350 (some makes), with dyno testing the headers on high hp race engines we make get up to 1000-1100, 1400 is about peak, anything higher and something aint right. I doubt a 30hp or less air cooled engine will get much more then 1400. But almost all spray paints will crack and chip eventually. Only good thing to do is ceramic coat it, but whos gunna drop a couple hundred on a muffler?

I have used that a few times. It will burn off for a few minutes the first running but after 3-5 minutes, its fine. The finsih seems to last a goood while as well.

DillonsLawnCare
10-07-2007, 10:25 PM
ok, so i get out there and cut some grass, the paint is wet and melty and for some odd reason there is a significant amout of blowout on the front of my deck, and blows back and hits my exhaust. grass is all stuck on it and crap and the pain is chipping away on the top........ so i clean it and repaint it to make me feel better for the moment.

i checked the can and it said 1000 degrees that it can withstand. its grill paint. <<<load of crap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!

DillonsLawnCare
10-07-2007, 10:26 PM
sorry about the !!!!! . ima little ticked off.

MOW ED
10-08-2007, 06:51 AM
Now don't take me for being a smart azz but why in the world would you want to paint your muffler? It looks shiny and new but its a muffler. I can see that you take good care of your stuff by your pics, I guess I never thought to paint a muffler. You may be on to something, you know like the Trick My Truck show. Trick my Walkbehind? Who knows!:clapping:

DLCS
10-08-2007, 10:30 AM
You probably are not letting it cure long enough to start with but really they are work tools and will not always look pretty.

DillonsLawnCare
10-08-2007, 10:02 PM
yeahh... its sat now for a whole day!! you think thatll do it?

the muffler looked like SH#$!!! thats why i painted it. i sanded it down first though. i probably just should have left it like it was.........................

S man
10-09-2007, 12:16 AM
A little off topic, but I had a murray 20 incher with a 3.5 briggs on it. I had this mower when I first started cutting grass 6 years ago. Well I left it outside and threw a plastic cover over it when I was done working. Well I cut my yard and then put it away right after I was done, The muffker was very hot! The next day I went out and found the plastic stuck to the muffler. Had to mow with that plastic on there. It smelled so bad and thought I was going to have a fire soon. But it was alright after a few days. Left a big burn mark on the muffler.

erdoes87
10-10-2007, 01:41 PM
i painted my like that on my ex mark 48in turf tracer and it started on fire after a why'll i had to buy a new air filter and the cover and a new battery and holder and spark plug wires but you should be fine it didnt cost me that much

lawnboy858
04-19-2008, 10:24 PM
I am half tempted to do the same thing.

The walk behind I just bought is a Kohler, and its muffler is rust colored.

I don't understand why, but all Kohler mufflers are this way. I would paint it but after hearing your story I think I'll wait until you figure out what kind works the best.

I wonder what the factory paints them with?

lifetree
04-19-2008, 10:31 PM
My Cummins Diesel exhaust gas temp. reaches 1300F[egt-guage].I would guess a gas engine would run cooler.....Wood stove paint may be rated higher than 500F.

Makes sense to me !!

JRS Landscaping
04-27-2008, 12:16 PM
My Cummins Diesel exhaust gas temp. reaches 1300F[egt-guage].I would guess a gas engine would run cooler.....Wood stove paint may be rated higher than 500F.

diesel runs cooler than gas

02DURAMAX
04-27-2008, 12:47 PM
diesel runs cooler than gas

;)Never!..they run hotter

DLCS
04-27-2008, 01:44 PM
Gas engines run cooler.:)

nosparkplugs
04-27-2008, 05:32 PM
Thats should tell you that your exhaust is higher than 500 degree's ?????, also with the muffler so close to the exhaust port it's most like's up around 1,000. You need JET-HOT.

Diesel"s exhaust reaching 1,300 degree's is in the danger zone guys!!!!! at 1,450 degree' s your reaching meltdown. I may get up to 1,300 on a hill,but only for short periods is that acceptable.