Author Topic: Melted Plastic on Exhaust / Removal?  (Read 1213 times)

0 Members and 1 Guest are viewing this topic.

Offline jaknight

  • Hot Shot
  • ***
  • Posts: 637
  • ....Round Town Ride......
Melted Plastic on Exhaust / Removal?
« on: September 16, 2007, 08:09:57 PM »
Hi Everyone,

     Going down the road and a car blows a plastic grocery store bag up and out from underneath it.  The wind blows it to the side and out of my way, then the wind brings it back right in front of me when it's too late to move and dodge it.  The bag sticks on my #1 exhaust pipe right below the clamping spot to the cylinder head.  Burns, fries, and sizzles before I can get it off.  Many miles to home.

    It is fried on really bad....... black thick gunk.  Anyone know what I can use to get that fried hard gunk off of there?

     I bought and tried some stuff called Goo Gone....... seems I heard it mentioned here before........ it didn't seem to do anything.

     I am open to all ideas........ hate to leave it there and I sure don't want to scrape the chrome away........ man, did it ever happen quick........ now, what can I do about the consequences?........... ??? ??? ???

     ~ ~ ~ jaknight ~ ~ ~
"THE PEN IS MIGHTIER THAN THE SWORD........
..........EXCEPT IN A SWORD FIGHT"
___________________________________________
"There is nothing new under the sun.........But there are many old things we do not know"
BIBLE ---> Basic Instructions Before Leaving Earth

Offline Pinhead

  • Master
  • *****
  • Posts: 1,818
  • 1979 CB652-ST
Re: Melted Plastic on Exhaust / Removal?
« Reply #1 on: September 16, 2007, 08:47:57 PM »
Dremel and a wire wheel. Just be careful not to hut the chrome.
Doug

Click --> Cheap Regulator/Rectifier for any of Honda's 3-phase charging systems (all SOHC4's).

GM HEI Ignition Conversion

Quote from: TwoTired
By the way, I'm going for the tinfoil pants...so they can't read my private thoughts.
:D

drag0n

  • Guest
Re: Melted Plastic on Exhaust / Removal?
« Reply #2 on: September 16, 2007, 09:59:54 PM »
dude i scraped melted pvc from a milkcrate(longstory) off mine when it was hot with my handy dandy switchblade didnt even scratch the chrome

Offline ofreen

  • Old Timer
  • ******
  • Posts: 4,058
Re: Melted Plastic on Exhaust / Removal?
« Reply #3 on: September 16, 2007, 10:10:50 PM »
The last time it happened to me I scraped it off with a plastic ice scraper while the pipe was cold.  Most of it chipped off fairly easily.  Some spots were more stubborn. 
Greg
'75 CB750F

"I would rather have questions I cannot answer than answers I cannot question." - Dr. Wei-Hock Soon

tbone

  • Guest
Re: Melted Plastic on Exhaust / Removal?
« Reply #4 on: September 16, 2007, 10:13:08 PM »
Commercial paint stripper should dissolve it. Just be careful not to get it on anything painted.

Offline Soos

  • Just a butcher with a carbide hatchet, definitely not a
  • Master
  • *****
  • Posts: 2,324
Re: Melted Plastic on Exhaust / Removal?
« Reply #5 on: September 17, 2007, 03:21:58 AM »
I dropped a bag of groceries onto mine once while they were hot....
I left it there for about 2-3 months, then one day i decided to get it off, it flaked off with my fingernail.
Mind you the exhaust was cold when i did remove it.


l8r
-=≡ Soos ≡=-
Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline KB02

  • Take it easy there, Sonny, I'm an
  • Old Timer
  • ******
  • Posts: 3,760
Re: Melted Plastic on Exhaust / Removal?
« Reply #6 on: September 17, 2007, 04:56:46 AM »
I once had someone suggest Easy-Off over cleaner. Worth a shot.
1978 CB750K Project
2000 Ducati ST2
...and a pedal bike

Join the AMA today!!

My project thread Part I: K8 Project "Parts Bike"
My project thread Part II: Finishing (yeah, right) touches on Project "Parts Bike"

Offline jtb

  • An unlikely
  • Expert
  • ****
  • Posts: 1,499
Re: Melted Plastic on Exhaust / Removal?
« Reply #7 on: September 17, 2007, 05:34:26 AM »
I got most of it off of mine by scraping with my fingernail.
1977 CB750F
1985 V65 Sabre
1986 VFR 750 (gone but missed greatly)

Offline hopterfixer

  • Hot Shot
  • ***
  • Posts: 520
    • My flickr Gallery->
Re: Melted Plastic on Exhaust / Removal?
« Reply #8 on: September 17, 2007, 07:31:20 AM »
Scrape what you can off with a non-metallic scraper and then use 0000 steel wool and chrome polish to get the rest off.

Offline GoatBaSS

  • Could someone find an
  • Expert
  • ****
  • Posts: 760
  • To weird to live, to rare to die.
Re: Melted Plastic on Exhaust / Removal?
« Reply #9 on: September 17, 2007, 07:37:09 AM »
ball bearings and anti-freeze  :D ;D ;)
Leethal # 3046?
1972 CB750K/900CC Red Headed Dunstall, 1975CB750FSS Gone BNF: 1974CB500T, 1976CB750K X 2