Evinrude 30 Carburetor Cover - Moderated Discussion Areas

  ContinuousWave
  Whaler
  Moderated Discussion Areas
  ContinuousWave: Whaler Performance
  Evinrude 30 Carburetor Cover

search | FAQ | profile | register | author help

Author Topic:   Evinrude 30 Carburetor Cover

blacksmithdog posted 11-05-2010 06:12 AM ET (US)
I have a 1991 Evinrude 30-HP outboard on my Standard 13. I just bought this rig, and yesterday evening was the first time I had the engine cowling off. I was kind of surprised to see no cover on the carb. I was expecting some kind of plastic screen. I went and looked at the parts breakdown on iBoats, and didn't see one there:
http://www.boats.net/parts/search/BRP/EVINRUDE/1991/E30TELEIC%201991/ CARBURETOR%20-%2025-30/parts.html
Does anyone have a similar engine that could tell me if there should be some kind of screen/cover on the carb? It looks like there are 4 threaded holes on the front of the carb.
Thanks!
jimh posted 11-05-2010 08:22 AM ET (US)
For illustrated part diagrams for Evinrude engines use
SHOP.EVINRUDE.COM
blacksmithdog posted 11-05-2010 08:59 AM ET (US)
Hmmmmmmmm, it doesn't show it either.
Peter posted 11-05-2010 09:40 AM ET (US)
Prior to 1982, the 32 cubic inch 25/35 HP Evinrude/Johnson had a plastic air silencer in front of the carburetor. 1982 and after there was nothing in front of the carburetor.
Tohsgib posted 11-05-2010 10:20 AM ET (US)
Not true...there is usually never a cover in front of the carb if manual start. If it has electric start it is required to have a "flame arrestor" in front of the carb to keep you from blowing up.
Tom W Clark posted 11-05-2010 10:22 AM ET (US)
My 1977 manual start Johnson 35 had a plastic air silencer in front of the carb.
goldstem posted 11-05-2010 11:07 AM ET (US)
sorry bigshot, no requirement for a flame arrester on an outboard. no enclose engine space. my '84 johnson 35 (electric) doesn't have it, our '99 johnson 30 (electric) and
neither did a friends 25. not shown in any parts diagram. it was dropped after 82 as stated.
adlert posted 11-05-2010 01:22 PM ET (US)
Ditto goldstem. These parts are not flame arrestors. They are "intake silencers" which are designed to mitigate 2 stroke "intake roar." If you come across one from a earlier engine cheap that can be put on yours, I'd do it. It'll likely make you engine somewhat quieter. As I mentioned in another thread, the older OMC engines intake silencers were often quite elaborate. Some of them made big differences. For some reason, Mercury never used them in their older engine designs and in my opinion older Mercs tended to be considerably louder than similar period OMCs. Merc would however often position extra sound absorbing material some distance away, but in front of the carb throats. You'll see this technique used on certain OMC 2 cylinder engines as well.
rogerhoward posted 11-05-2010 01:29 PM ET (US)
I have a 1997 30hp Evinrude and it has no carb cover of any kind, and near as I can tell this motor is stock (very little use since new).
Tohsgib posted 11-05-2010 02:08 PM ET (US)
Sorry I was going by my OMC 15's. The manual starts do not have a carb cover, the Electrics did. My 87 20hp manual does not but my 82 35 electric did.

Hop to:

Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.

Author	Topic: Evinrude 30 Carburetor Cover
blacksmithdog	posted 11-05-2010 06:12 AM ET (US) I have a 1991 Evinrude 30-HP outboard on my Standard 13. I just bought this rig, and yesterday evening was the first time I had the engine cowling off. I was kind of surprised to see no cover on the carb. I was expecting some kind of plastic screen. I went and looked at the parts breakdown on iBoats, and didn't see one there: http://www.boats.net/parts/search/BRP/EVINRUDE/1991/E30TELEIC%201991/ CARBURETOR%20-%2025-30/parts.html Does anyone have a similar engine that could tell me if there should be some kind of screen/cover on the carb? It looks like there are 4 threaded holes on the front of the carb. Thanks!
jimh	posted 11-05-2010 08:22 AM ET (US) For illustrated part diagrams for Evinrude engines use SHOP.EVINRUDE.COM
blacksmithdog	posted 11-05-2010 08:59 AM ET (US) Hmmmmmmmm, it doesn't show it either.
Peter	posted 11-05-2010 09:40 AM ET (US) Prior to 1982, the 32 cubic inch 25/35 HP Evinrude/Johnson had a plastic air silencer in front of the carburetor. 1982 and after there was nothing in front of the carburetor.
Tohsgib	posted 11-05-2010 10:20 AM ET (US) Not true...there is usually never a cover in front of the carb if manual start. If it has electric start it is required to have a "flame arrestor" in front of the carb to keep you from blowing up.
Tom W Clark	posted 11-05-2010 10:22 AM ET (US) My 1977 manual start Johnson 35 had a plastic air silencer in front of the carb.
goldstem	posted 11-05-2010 11:07 AM ET (US) sorry bigshot, no requirement for a flame arrester on an outboard. no enclose engine space. my '84 johnson 35 (electric) doesn't have it, our '99 johnson 30 (electric) and neither did a friends 25. not shown in any parts diagram. it was dropped after 82 as stated.
adlert	posted 11-05-2010 01:22 PM ET (US) Ditto goldstem. These parts are not flame arrestors. They are "intake silencers" which are designed to mitigate 2 stroke "intake roar." If you come across one from a earlier engine cheap that can be put on yours, I'd do it. It'll likely make you engine somewhat quieter. As I mentioned in another thread, the older OMC engines intake silencers were often quite elaborate. Some of them made big differences. For some reason, Mercury never used them in their older engine designs and in my opinion older Mercs tended to be considerably louder than similar period OMCs. Merc would however often position extra sound absorbing material some distance away, but in front of the carb throats. You'll see this technique used on certain OMC 2 cylinder engines as well.
rogerhoward	posted 11-05-2010 01:29 PM ET (US) I have a 1997 30hp Evinrude and it has no carb cover of any kind, and near as I can tell this motor is stock (very little use since new).
Tohsgib	posted 11-05-2010 02:08 PM ET (US) Sorry I was going by my OMC 15's. The manual starts do not have a carb cover, the Electrics did. My 87 20hp manual does not but my 82 35 electric did.